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November 2009
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<div><a href="http://share.skype.com/in/26/241411" target="_blank"><img src=" http://share.skype.com/show/flash/?id=26" border="0" alt="Share Skype" id="skype-banner-img" width="120" height="60" /></a></div> Call me!

podsafe music network

Carpe Noctem - Seize the Night!



photo courtesy of: ESA SMART-1
Credit: ESA

Stars: Act I Les Miserables

Stars
In your multitudes
Scarce to be counted
Filling the darkness
With order and light
You are the sentinels
Silent and sure
Keeping watch in the night
Keeping watch in the night

You know your place in the sky
You hold your course and your aim
And each in your season
Returns and returns
And is always the same
And if you fall as Lucifer fell
You fall in flame!

By Alain Boublil and Claude-Michel Schonberg
Lyrics by Herbert Kretzmer

Listener Feedback

Welcome to Heath, Stephan, and Vance. I am glad to have you aboard and loved the emails. I also got a phone call from my Aunt Bonnie who was visiting my folks with the infamous "Mars Spectacular" email in hand. She apparently forgot about it until she heard the podcast. Apparently it caused much hilarity and spawned a welcomed phone call.

Listener Question

Mars Spectacular ... exact number repressed
Why is Pluto not a planet...lost count
I'm ready for some new questions! ;-)

News

SMART-1 to hit the Moon Read more from NASA...or more from the ESA protal... One of its most important discoveries was a "Peak of Eternal Light," peaks around Crater Peary near the Moon's north pole in constant, year-round sunlight. Peaks of Eternal Light are prime real estate for solar-powered Moon bases.
Ironically I planned this week's lunar Lacus tour before I knew that SMART-1 was crashing into Lacus Excellentiae so the Lacus Tour is appropriate.

Uranian eclipse Read more from Space.com...
Sir William Herschel discovered Uranus on March 13, 1781, noting that it was moving slowly through the constellation Gemini. Initially, however, Herschel thought he had discovered a new comet.

Constellations

Scutum - The shield is the 5th smallest constellation and was introduced in late 1683 by Hevelius as commemoration of the victory of the Christian forces led by Polish king and hero John III Sobieski in the battle of Vienna. We have danced all around this constellation, looking at its brighter objects all summer but never calling it by name. It is home to M11 (NGC 6705) +6.3 mag, the Wild Duck Cluster, M26 (NGC 6694)an +8.0 mag open cluster. The globular cluster NGC 6712

Sculptor - introduced by Nicolas Louis de Lacaille as a sculptor's studio, but the name was later shortened to just Sculptor. It sits North of the Phoenix and Grus (the Crane) and to the east of Fomalhaut. Scuptor's 4-5th mag stars outline what could be a large block of unshaped stone.
Visible from 50 deg N Scuptor contains the South Galactic Pole and is home to the Scuptor Dwarf

Pisces Australis - Visible from 53 deg N the Southern Fish is one of the original 48 constellations that appeared in Ptolemy works. If you can find Aquarius and follow the water being poured from the jug you will find the Southern Fish drinking at the base of that cascade. The Arabs call the brightest star Fum al Hut (Fish Mouth)now Fomalhaut.

Around 3000BC Persian astrologers used Fomalhaut (Haftorang) as one of their 4 Guardian Stars (Royal or Watcher Stars).

They are:
Aldebaran (Tascheter) - vernal equinox (Watcher of the East)
Regulus (Venant) - summer solstice (Watcher of the North)
Antares (Satevis) - autumnal equinox (Watcher of the West)
Fomalhaut (Haftorang) - winter solstice (Watcher of the South)

Microscopium - another one of de Lacaille's mechanical wonders. Visible from 45 deg N but the stars are very faint. If you draw a line from Fomalhaut to Kaus Australis (the bottom corner star of the spout in the Saggitarius teapot) the half way point will be right in the middle of Microscopium.

Constellation image on its way!

Viewing

Naked eye -
Participate in NASA's "Star Count" all you need is a paper towel tube!

Something for the Northern Hemisphere is Algol. The Arabs called it Al ghul 'the ghoul' and the Greeks refered to it as the evil eye of the Gorgon Medusa. In the sky it is the second brightest star in the constellation Perseus and is indeed in Medusa's head in Perseus' outstreatched arms.

"...the Gorgon's head, a ghastly sight, deformed and dreadful, and a sight of woe". - Homer, writing of Algol in the Iliad.

Algol was actually an eclipsing binary 93 light-years away with a freakishly regular period of 2 days 20 hours 48 minutes 56 seconds to go from magnitude +2.1 to +3.4 and back. Use the charts from the AAVSO to find Algol and compare her in brightness to stars in the same area. Algol will be come easier to see (earlier!) and the season wears on. For more information visit the Sky and Telescope website.


Other objects around Algol.

Binocular - Turn those binoculars towards Algol for a treat. Telescope won't really give you the same nice wide field of view and the binoculars make it easier to compare magnitudes with stars around Algol. Binocular observers with really dark skies can view NGC 288 in Sculptor together with the bright galaxy NGC 253 in one field; NGC 288 appears as a round nebulous object.

Telescope - Barred Spiral Galaxy NGC 55 in Sculptor
Swinging up high and dark try NGC 6207 mag +11.6 in Hercules just .25 deg NE of M13 the Hercules cluster.

Viewing image on its way!

The Moon

Partial Lunar eclipse Sept 7 16:42 UT (first contact with penumbra)

Images created with Lunar Phase Pro

Our beautiful lunar photos are courtesy of Frank Barrett at celestialwonders.com I recommend visiting his site and checking out his lunar phase photos. You can zoom in for more detail.

Show #26 took us to the Ptolemaeus group of craters and we are going to start at the end of that group for a little hop to hell! ;-)



I loved this excerpt from "What's up 2006: 365 Days of Skywatching" by Tammy Plotner

"Just west of Thebit and its prominent A crater to the northwest, you see the Straight Wall - Rupes Recta - appearing as a thin, white line. Continue south until you see large, eroded crater Deslandres. On its western shore, is a bright ring that marks the boundary of Hell. While this might seem like an unusual name for a crater, it was named for an astronomer - and clergyman!"



Object Latitude Longitude Comments
Crater Manilius 14.5 9.1 Marcus; Roman poet and astrologer (unkn-c. 50 B.C.).
Crater Menelaus 16.3 16 Of Alexandria; Greek geometer, astronomer (c. A.D. 98) also of the Iliad Menelaus was brother to Agamemnon and husband to Helen soon to be Helen of Troy

The 'Lake District'. The same way the Lake District in Northern England has a pletheora of 'tarn' the lunar surface also has its share of lacus (lakes), 17 in all, there is one region that has a nice concentraion. Between Mare Vaporum and Mare Serenitatis.

  1. Lacus Felicitatis
  2. Lacus Odii
  3. Lacus Doloris
  4. Lacus Gaudii
  5. Lacus Hiemalis
  6. Lacus Lenitatis


Remember latitudes that are negative (-) are South and longitudes that are negative (-) are West!

Planets

Evening Planets
  • Mars - Mag +1.8 is at the western end of Virgo. You will have to look hard in the haze of the horizon and it will help to be closer to the equator.
  • Jupiter - Mag -1.7 in Libra. Clearly visible high in the sky just after sunset. Any telescope can reveal its two widest cloud bands and four Galilean satellites. Listener Kevin recommended a piece of free software that I now have on all my computers Jupiter 2 (Thanks Kevin!).
  • Uranus - Mag +5.7 in Aquarius Uranus is best seen in a dark moonless sky away from artificial lighting. It may be seen looking like a very faint star to the dark-adapted naked eye that shimmers in and out of visibility just over 1 degree east of Lambda Aquarii. Find the tipped over letter Y of Aquarius, go 4 thumbwidths southeast to find Lambda, and then look pinky nail east.
  • Neptune - Mag +7.8 in Capricorn 1 degree north of the +4.3 magnitude star Iota Capricorni
Don't Blink!
  • Mercury - Mag -1.7 at Superior conjunction Aug 31. Mark your calendars for inferior conjunction and visible transit on Nov. 8th
Morning Planets
  • Venus - Mag -3.8 The brightest morning planet visible. To the ESE the bright star Sirius is rising with Venus in the morning.
  • Saturn - Mag +0.5 on the western edge of Leo! You still need binoculars in the early morning glare. Starting the first weekend in September look for Saturn ~7 degrees West of Venus but by the second weekend they will be 15 degrees apart as Venus creeps closer to the Sun and Saturn and the Sun move apart..optically that is!
Shall we be sassy? Dwarf Planets..er...Minor Planets...er...Icy Dwarfs....er...um...hmmmm
  • Pluto Mag +13.9 in Serpens Cauda
  • 1 Ceres +7.9 mag in Piscis Austeralis 18.5 degrees West of Formalhaut
  • UB313 mag +19 in central Cetus

Comets

Comets for the Month.

Check out the Sky Hound site.
"One touch of nature makes the whole world kin"
-- Shakespeare

Email us at astronomyagogo at gmail dot com or leave a note in our show notes at www.astronomy.libsyn.com
Help us out by leaving a donation in the ol' PayPal hat

Music

Celtic Stone - Raggle Taggle Gypsies

Woodland Hills Camera and Telescope is offering FREE web hosting on our servers for you or your organization's website. In order to promote the hobbies of Astronomy, Astrophotography, Photography, Birding or generally any topic that is of interest to our customer base, Woodland Hills Camera and Telescope is offering Hosting Grants.


Category: Moon -- posted at: 1:02 AM
Comments[1]

The podcast is on it's way but I didn't want anyone to miss Smart1 hitting the moon!

Make sure you go to the NASA website for the details of this event for Sept 3, UT 05:41 (Sept 2, 10:41 PDT for you west coasters!)
Category: Moon -- posted at: 12:04 AM
Comments[43]

Answering those favorite old questions: 

Will the Mars email ever stop!?  Ha!

Will Pluto spin out of orbit now that it isn't a Planet?!?!?  It's still a Planet folks!

Can Alice create a podcast on Nyquil?!?!?  Absolutely NOT!  LOL



Direct download: AAGGshow28.mp3
Category: Moon -- posted at: 8:01 AM
Comments[0]

Looking at astronomy in art, cruisin' the open clusters of Puppis, what do astronomers keep in their kits, some music and conversation.
Direct download: AAGGshow15.mp3
Category: Moon -- posted at: 9:49 AM
Comments[0]

AAGG Show #15: Show Notes

Carpe Noctem - Seize the Night!


Van Gogh's "Starry Night"

Hello!

Hello to Anthony from Manchester, England! He is doing what most parents do just trying to stay one step ahead of the kid! And hello to Anthony's kids!

And happy birthday to my sister Mandy back home in Texas!

Special Viewing Project!

Globe at Night needs your help measuring and recording the amount of light pollution

Art

Van Gogh's "The White House at Night"
Munch's "Girls on a Pier"
Van Gogh's "Moon rise"

Donald Olson Marilynn Olson, his wife, and Russell Doescher Texas State University, San Marcos. Astronomer Russell Doescher confirmed that the star in "White House at Night" is actually Venus, just like in "Starry Night" and the placement of the moon. In Starry night Van Gogh actually painted the moon in the proper gibbous phase then changed it to a more romantic crescent

The Moon

-

Tonight the moon is in it's last quarter phase and shrinking daily. Which is good for all of the Messier hunters this weekend!

Grimaldi a tiny spot, sometime mistaken for a tiny sea on the western limb of the moon.
The approximate diameter of the inner rim is 140 kilometers(87 miles). The inner wall of Grimaldi has been so heavily worn and eroded by subsequent impacts that it forms a low, irregular ring of hills, ridges and peaks, rather than a typical crater rim. However there are peaks remaining that reach heights of over 2 kilometers.

Grimaldi is also a site for transient lunar phenomenon.
Image courtesy of the Lunar Republic

There was an interesting computer enhanced image of Buzz Aldrin on the Moon, I ran across it on the Bad Astronomer's Blog It has been cleaned up...a bit too much! Also thanks to Tom's Astronomy Blog I found out that the IAU has provisionally approved of naming 7 of the moon's craters after the astronauts who perished in the Columbia tragedy. Once all is said and done I will find craters; Husband, McCool, Chawla, L. Clark, M. Anderson, D. Brown, Ramon for you.

Planets

  • Earth - Normally we don't mention our little planet but with our Vernal/Autumnal Equinox just passing it is worth a mention. Great Animation - showing the Earth moving around the sun through it's season. If you carefully watch the illumination of sunlight on the earth you will notice that only on the vernal and autumnal equinox does it cover the globe from pole to pole. It also has the arctic and antarctic circles mapped so you can see the difference between equinox and solstice.
  • Venus - The brightest planet visible this month. Venus is outstanding in the Eastern morning sky and you will want to grab a pair of binoculars or even just a finder scope to check out her phase. Just over half full she is intensely bright in her gibbous phase.
  • Jupiter - The largest planet resides in the confines of Libra and is highest around 3:am on the ecliptic between the bright Spica to the west and the ruddy Antares to the east. Any telescope can reveal its two widest cloud bands to you, along with its four Galilean satellites.
  • Saturn - It appears as a yellowish star that rivals Capella in brightness, A small telescope will always show Titan, Saturn's largest and most extraordinary moon. A 6-inch telescope will begin to show the orange color of its atmospheric haze.
  • Mars has swung past Aldeberon and is almost between the tips of the bulls horns.
  • Mercury - by this weekend and on into next week start looking for the re-appearance of Mercury as a morning planet. Just south of east about 25 degrees from Venus (towards the horizon and easterly) if you remember how to measure 25 degrees, it is the spread between your pinky and thumb when fully extended. Show #10 has our primer for measuring distances in the sky

Tools/Gadgets

What do you keep in your telescope kit? Do you have too much, too little? What is your favorite tool?
Alice's telescope box
  • Telrad
  • lenses
  • lens cleaner(brush/lens pen)
  • canned air
  • all the telescope bits
  • red led flashers
  • red flashlights
  • My binder (star charts, various lists I'm working on, telrad Messier charts)
Alice's reference box
  • All the Sky Spot Telrad Finder Scope books
  • H.E. Ray's books of constellations (both)
  • several different reference books depending upon the season and the reason for the outing.\
  • 6 planispheres different varieties
  • flat panel red light viewer - Light Wedge
  • extra batteries (AA AAA etc)
  • extra red flashlights
  • tools (screw drivers, adjustable wrench, duct tape, clear tape, small bolts with wing-nuts, wire, etc)
At home
  • Sky Atlas - desk set in white
  • Loads of books!
  • Computer
What I would love to build!!
  • Eyepiece bench - I like this layout - don't have that many eyepieces!! But he has great directions for drill/cutting foam. I really like how he organized his filters.
  • An observing chair, something like this
  • A binocular mount, something like this

Clusters

Globular - Globular clusters are gravitationally bound concentrations of approximately ten thousand to one million stars. They populate the halo or bulge of the Milky Way and are believed to be very old and formed from an earlier generation of stars. Hayden Planetarium has a great simulation on the life of a globular cluster

Open cluster - Open (or galactic) clusters are physically related groups of stars held together by mutual gravitational attraction. They are believed to originate from large cosmic gas/dust clouds in the Milky Way, we can observe the formation of new young open star clusters. You can easily see this nebulosity in the Pleiades.

There are two types of descriptors you will see with open star clusters. There is the Shapley index (Harlow Shapley)
c - very loose and irregular
d - loose and poor
e - intermediately rich
f - fairly rich
g - considerably rich and concentrated

The more detailed and specific Trumpler index/rating which is broken into 3 parts + optional nebulosity note.

The first part is a Roman numeral that denotes concentration

I - Detached; strong concentration toward center
II - Detached; weak concentration toward center
III - Detached; no concentration toward center
IV - Not well detached from surrounding star field

The second part is a Arabic number to show the range in brightness

1 - Small range in brightness
2 - Moderate range in brightness
3 - Large range in brightness

Thirdly a letter to represent the richness of the cluster

p - Poor: Less than 50 stars
m - Moderately rich: 50 to 100 stars
r - Rich: More than 100 stars
If there is an nebulosity in and around the cluster there will be an "n" attached to the end.

I give you both since you will find both used in the different resource on the internet or on star charts.

Binocular/Telescope viewing
Open Clusters
NGC images courtesy of the Chinese Public Understanding of Science website (NGC)
NGC 2451 (mag 2.8) next door to...
NGC 2477 (mag 5.8) these together show you how differnt open clusters can be!

M47 ( NGC 2422 - mag 4.4) he Sky Catalog 2000 gives an estimated age of 78 million years for this stellar swarm which is receding from us at 9 km/sec. A bright cluster in Puppis, easily visible as a hazy patch to the naked eye. Binoculars will show a large hazy patch with many stars resolvable.
M46 (NGC 2437 -mag 6.0 )This cluster is right next to M47 and is also visible to the naked eye. In binoculars M46 appears as a large hazy patch with no stars resolvable, giving a nice contrast to M47. In telescopes at low powers this cluster evenly fills the eyepiece. While you are here go to medium or high power and look for the planetary nebula NGC 2438. It will appear as a faint uneven ring, with a blue/green color.

M48 (mag 5.8) in Hydra

Not to ignore the far N. Hemisphere try
M67 (NGC 2682 - mag 6.1) in Cancer
Mel 111 in Coma Berenices (mag 1.8) P.J. Melotte had cataloged it in his 1915 catalog as No. 111. One of Potolomy's first catalogued clusters. The Coma star cluster is currently neither approaching nor receding from us, i.e. it moves tangentially to us with a velocity. (see map in Constellation section)

Constellations

Coma Berenices, Berenice's hair - One of the last of the ancient constellations. Queen Berenice sacrificed her beautiful hair to the goddess Aphrodite in order to assure the safe return of her husband from battle. Upon his return the king demanded to be shown her hair. In order to save his own life(for the hair had been stolen) the temple priest related how Aphrodite was so moved by the sacrifice removed the hair and placed it into the skies as a constellation. Coma Berenices is a small, faint constellation that can be found immediately to the east of Leo.

News

There are so many great space and astronomy news sites out there I won't try and duplicate them all, I'll just report things that really strike my fancy or that I think you might be interested in. Here is a list of some of the sites I visit daily:

  • NASA's Eclipse Page -
  • Great Animation - showing the Earth moving around the sun through it's season. If you carefully watch the illumination of sunlight on the earth you will notice that only on the vernal and autumnal equinox does it cover the globe from pole to pole. It also has the arctic and antarctic circles mapped so you can see the difference between equinox and solstice.
  • Wiki fun- This has very little to do with astronomy but have you ever tried entering a date, like March 22, in Wikipedia. It will list world events and personalities who share that date.

Comets visible with binoculars/telescopes in the northern hemisphere. -
Pojmanski
and 73P/ Schwassmann-Wachmann 3
and C/2005 E2 ( McNaught )

"One touch of nature makes the whole world kin"
-- Shakespeare

Email us at astronomyagogo@gmail.com or leave a note in our show notes at www.astronomy.libsyn.com
Help us out by leaving a donation in the ol' PayPal hat

Music

Hans York -"Listen to the Moon"
Radoon -"From the Moon"

Category: Moon -- posted at: 7:02 AM
Comments[2]

Talking about the Moon, chasing Mercury, planning for an astrophotography episode, sharing good astronomy sites, listening to music and having fun! (Not to mention staying up wayyyy too late!)
Direct download: AAGGshow12.mp3
Category: Moon -- posted at: 2:45 PM
Comments[0]

AAGG Show #12: Show Notes

Carpe Noctem - Seize the Night!

M104 Image courtesy of Thomas McDonagh
Copyright: Thomas McDonagh 2005 
60 second image collected remotely April 13, 2005
300 mm f/ 11.9
23.6 x 23.6 Arcmins FOV
RAS Observatory, NM
The Old Astronomer to His Pupil

Reach me down my Tycho Brahe, I would know him when we meet,
When I share my later science, sitting humbly at his feet;
He may know the law of all things, yet be ignorant of how
We are working to completion, working on from then to now.

Pray remember that I leave you all my theory complete,
Lacking only certain data for your adding, as is meet,
And remember men will scorn it, 'tis original and true,
And the obloquy of newness may fall bitterly on you.

But, my pupil, as my pupil you have learned the worth of scorn,
You have laughed with me at pity, we have joyed to be forlorn,
What for us are all distractions of men's fellowship and smiles;
What for us the Goddess Pleasure with her meretricious smiles!

You may tell that German College that their honor comes too late,
But they must not waste repentance on the grizzly savant's fate.
Though my soul may set in darkness, it will rise in perfect light;
I have loved the stars too fondly to be fearful of the night.

          Sarah Williams

Welcome!

Hello to the original Go Go girl Joan! (aka Mom! aka Go!Go! Joanie)

RapidEye sent us more references for free planispheres and star charts...

"I heard your request for a free "Southern" Planisphere and this one didn't come up:
http://www.asahi-net.or.jp/~zs3t-tk/planisphere/planisphere.htm
The guy is amazing and also did a free Mag 6.5 Atlas with a similar layout to Norton's:
http://www.asahi-net.or.jp/~zs3t-tk/atlas/atlas.htm
Then he went a step further and did a free Mag 8.5 Atlas (his substitute for SA2K):
http://www.asahi-net.or.jp/~zs3t-tk/atlas_85/atlas_85.htm"

David in Cardiff U.K. made a wonderful suggestion to create MP3s for 'in the field' listening

A big thanks to Kevin, Matt and Joseph who are feeding me information for a segment on astrophotography!

I am really enjoying watching as people appear on the Frappr Map! Our most southern listener is "Iluvtheclean" from Dunedin, New Zealand, and the furtherest North is the "Neptune Family" in Anchorage AK...and I think we have some pointy stick issues in common so go visit www.justafewskeins.blogspot.com sometime!

Finally welcome to Mordechai from Israel who had found a rekindling of interest in astronomy and is looking for the Andromeda Galaxy and so lets start the program with that!

Don't forget

We have links to all the reference from tonight's show in our show notes you can find them at astronomy.libsyn.com

Tips and Tricks

Finding M31, M32, M110

This is what I do to find the Andromeda Galaxy. Start with Alpheratz (AL-fer-rats)the star shared by Andromeda and Pegasus. Most of Pegasus will be sitting just on the western horizon so Alpheratz will be the brighter star on the horizon. Andromeda is a long "V" shape which starts at Alpheratz and widens as she stretches towards Perseus. If you go down the brighter line to the second star Mirach then cross north to star on the dim line and make one more step, the same distance and on the same line north to a faint long smear. That is the Andromeda Galaxy and with in her spiral arms is M32 and just on the opposite side a little removed is M110. Think of Peter Pan.."Second star.. to the right and straight on til morning" don't ask me why that works but it does. Now, light pollution I can't fix for you.

Planets

  • Venus - The brightest planet visible this month. Venus is outstanding in the Eastern morning sky!
  • Jupiter - The largest planet resides in the confines of Libra and it can be seen in the South before sunrise or late, late, late at night on the ecliptic between the bright Spica to the west and the ruddy Antares to the east. Any telescope can reveal its two widest cloud bands to you, along with its four Galilean satellites.
    UPDATE! go look for the new red spot on Jupiter...Little Red or Red Spot Jr.
  • Saturn - It appears as a yellowish star that rivals Capella in brightness, in the constellation of Cancer. (1 thumbwidths west of The Beehive - M-44)
  • Mars is sneaking it's way closer to Aldeberon almost creating another eye for The Bull. So in that part of the sky it is hip to be red, red Betelgeuse, orange-red Aldeberon and the red Mars
  • Mercury - creeping ever so much closer to the setting sun and will be gone soon!

Mercury

In Roman mythology Mercury is the god of commerce, travel and thievery, the Roman counterpart of the Greek god Hermes, the messenger of the Gods and original FTD man.

  • Because Mercury proximity to the sun makes it a tough subject to study. It move quickly from being a morning planet to and evening planet and back again.
  • Size wise Mercury is between the second smallest planet in the solar system after Pluto. It is smaller than the Earth by 40% and larger that our Moon by 40%.
  • Doppler radar observations finally figured out how Mercury rotates and orbits. Mercury had 3 days every two years...wrap your head around that one your head.
  • It was little Mercury that helped prove Einstein's theory of general relativity. Because of Mercuries eccentric orbit (perihelion =46 million km from the Sun but at aphelion =70 million) observers using Newtonian physics couldn't account for the math and spent years looking for another planetary body closer still to the sun to make up the difference in mass, the mystery planet sometimes referred to as Vulcan. Einstein's theory more accurately describes the motions of bodies in strong gravitational fields so scientist were able to accurately measure and predict Mercury's orbit.
  • Mercury has an atmosphere that is generated and then quickly disappears, blasted away by solar winds...not wind like blowing but a stream of charged electrons and protons traveling from the surface of the sun at 450km/sec! Without an atmosphere to protect it Mercury is as pock-marked as our moon.
  • What I love is the naming scheme or planetary nomenclature for the craters of Mercury.
  • It is interesting to note that Messenger will need to fly by Earth, Venus and Mercury multiple times before it can gain enough speed to match Mercury's pace around the sun and be successfully captured by the little planet!

Tools

This one is from the lost and found, a site I remember finding and then telling myself I would bookmark and then forgot. Check out Messier45.com

Constellations
Claudius Ptolemaeus, known to us as Ptolomy, 'created' the first 48 constellation and published them in his book Almagest or "The Great Book" in ~147/148 C.E. in Egypt. Relying much upon the first western star charts created by Hipparchus 3 centuries earlier. Charting only the constellations he could see from his latitude, it took Johanne Bayer who completed the task creating the first atlas to cover the entire celestial sphere in 1603.

Lynx - the Lynx or Tiger - Lynx, the Tiger, is a modern constellation, created by the astronomer Hevelius in the 17th century. He named it Lynx, as you had to have "eyes as sharp as a tigers" to see it the constellation.

Leo - the Lion is an old school constellation. The bright star is Regulus and it is easy to find with his large sickle shaped head. Leo contains many bright galaxies, the twins (Spiral Galaxy M65, Spiral Galaxy M66) and the Leo Trio.

The Moon - This weekend the moon will be moving from thin waxing crescent to first quarter. Start from the illuminated edge, this is the Moon's eastern limb regardless of her orientation to you. The large round sea we see is Mare Crisium acts as our East marker. The terminator is the North and South separator between the illuminated (day) part of the moon from the darker (night) side. On the 6th look for Mare Frigoris, the long narrow sea that stretches from East to West across the Northern 'cap' of the moon. The South has no large seas but lots of craters and is very bright. If you can practice finding these orientations and remember these markers you can travel anywhere and successfully navigate the moon even when she 'looks like a cup or a toad-stool"

On the 14th of this month much of the planet will see a partial lunar eclipse. This one is unique but might go unnoticed as the Moon passes only through the penumbra or outer shadow of Earth touching neither the dark 'true' shadow of the Earth, the umbra, or true light. If you follow the link and look at the diagram you will be impressed with just how little penumbra there is...basically only a Moon's width.

Naked eye viewing-

  • Mare Crisium (KRY-see-um)Sea of Crisis
  • Mare Undarium(un-DAR-um)Sea of Waves
  • Mare Spumans(SPOO-manz)Foaming Sea
  • Mare Fecunditatis(feh-KUN-di-TAH-tis) Sea of Fertility
  • Mare Serenitatis(seh-REN-ih-TAH-tis) Sea of Serenity
  • Mare Tranquillitatis(tran-KWIL-ih-TAH-tis) Sea of Tranquility
  • Mare Nectaris(nek-TAHR-is) Sea of Nectar

Binocular viewing-On the South edge of Mare Nectaris is a crater called Piccolominni. The crater was named after Alessandro Piccolomini (June 13, 1508-March 12, 1578), and Italian writer, philosopher, and astronomer.

Ready for a challenge. Last week we talked about the two comets coming from the S.hemisphere and there has already been a sighting...with binoculars! This is from "Tom's Astronomy Blog" which I find informative and reliable enough to keep in in my Bloglines. I think we both look at the same news items because I find frequent overlap..which is good! His blog updates are daily.

"I made it outside early this morning, didn't bother with my coat, after all it was just a quick look. 
I was thinking Pojmanski would be below the horizon. Not so! Actually, it was higher than I had expected. 
It was also much brighter than I thought it would be, probably because I was expecting it to be much more 
diffuse than it was. Then again I heard it was a mag 5, seems about right.

I used binoculars and started doing a spiral sweep around 
Venus - talk about bright - and in a few minutes...success. "
So, can we all guess what Alice will be doing in the mornings? Russell also mentioned it in his new Dark Matter's podcast which came out Tuesday.

Telescopic viewing- One of the prettiest spiral galaxies is in our northeastern sky during the evening hours. M51 more poetically named the Whirlpool galaxy.
Another challenge is M101, the pinwheel galaxy. After you find the bright, face on galaxy in Ursa Major come back inside and take a look at the new Hubble image. Wow! These new images have caused researchers to pull the Pinwheel out of our class of galaxy and put her into a much larger class 170,000 light years across and trillions of stars.
Magnitude 7.9 RA: 14h03m18s Dec: +54°22'00" M101 almost makes an equilateral triangle with the double star Alcor-Mizar, the second star from the end of the handle of the big dipper, and Alkaid the end star of the handle. Space News.

Comets

Make sure you check the links for update, always better from the horse's mouth so to speak....

Pojmanski has brightened to 5.3 magnitude (as of Feb 21) and is visible in the N.Hemisphere Tom of "Tom's Astronomy" reported finding it on a sweep starting around Venus. Follow the link above to find the associated starchart.
Schwassmann-Wachmann 3 Could be 3.5 mag at best, and will be visible with naked eyes. It is already bright and visible visually, 12.3 mag on Feb. 27 (Seiichi Yoshida). Strongly condensed and easy to see. It keeps observable in good condition all through the encounter in May, while it will be brightening rapidly. Two other components B and G are also visible.

McNaught10.3 mag on Jan. 30 (Juan Jose Gonzalez). It was very small and sharp before, however, now it looks like a typical diffuse comet. It keeps 10 mag until March.

News

Email us at astronomyagogo@gmail.com or leave a note in our show notes at www.astronomy.libsyn.com or help us out by leaving a donation in the ol' PayPal hat

Music

Courtney Jones -"Ride"
anthems of a bygone era -"String Groove"

Category: Moon -- posted at: 10:23 AM
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We will take a moment to remeber all of those who have given their lives so that we may continue to explore space. The twisted teens take over the constellation portion of the podcast and we talk a bit about the moon, news, and science.
Direct download: AAGGshow7.mp3
Category: Moon -- posted at: 6:05 AM
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AAGG Show #7: Show Notes

Carpe Noctem - Seize the Night!

Welcome to Astronomy a Go Go for Thursday January 26, 2006!

A day to remember

Growing up in Houston Texas gave me a unique connection with NASA, our family paid attention to everything that was space related, Dad was occasionally called upon by NASA for projects dealing with lightning and I can remember summers at, then, Cape Canaveral watching launches from the beach. On this, the last Thursday of January NASA and the entire NASA family pause to salute the fallen heros of Apollo 1, Challenger and Columbia and all the other men and women who have given their lives for exploration.

It was Gus Grissom who perished in Apollo 1 who said:

"If we die, we want people to accept it. We're in a risky business, and we hope that if anything happens to us it will not delay the program. The conquest of space is worth the risk of life."

Tips and Tricks

Naked eye viewing Start watching early in the week for the first time you can see the new waxing crescent moon. Also, if you are where it is dark look for Saturn, in Cancer, it will be in an open star cluster called M44 or the Beehive
Binocular viewing-If you have binoculars take some time looking at the Beehive near Saturn in Cancer.
Telescopic viewing- Those of you with telescopes we are going to take a look deep into the Orion Nebula, to the center of M42 for four bright stars that are almost touching each other, this area is called the "Trapezuim" there are more than 4 stars that make up this cluster and it is a sought after multiple star system. This area of the nebula is called the Huygenian Region named after the Dutch astronomer Christian Huygens who first discovered it in detail he discovered Titan as well.

The Sky and Constellations for Show #7

The moon is a waning crescent so you can expect a lovely dark weekend for viewing.

  • Eirandus (eh-RID-ah-nuss): The River (alpha Eirandi Achernar a Eri AY-ker-nar)
  • Cetus: The Whale
  • Pisces: The Fish Almost every ancient civilization saw this figure. The brightest star in Pisces is named Alrisha, which is Arabic for "The Knot".



For those of you in the S. Hemisphere I would recommend listening to James Barclay's podcast on his website. He is in a luck spot on the planet, no light pollution and a great observatory. You can find all of his show in his podcast section.

Planets

The Evening Set
Mars in Aries is still easy to pick out as the rusty red point SW of the Pleiades above the tale of Cetus the whale.
Saturn sits in Cancer and outshines all the stars in that constellation. It makes a nice triangle with Castor and Procyon
The Morning Set
Venus is low in the sky rising just before the sun. She is technically in Sagittarius but those stars will be too washed out to see.
Jupiter is in Libra and higher and west of Venus look between the red star Antaras and the bright white star Spica in the pre-dawn sky.

News

Stardust is a huge success and folks couldn't be happier.

New Horizon finally got off the ground and it was amazing just how fast that craft is going

Check out the news on the new galaxy that was discovered, it is so close that we basically couldn't see it. Go to the Slacker Astronomy site at www.slackerastronomy.org for the details and then listen to the show.

Extrasolar planet - large rocky planet found the count is now 159 and growing

Andromeda
An unusually high number of galaxies are aligned along a single plane running through the center of the giant Andromeda galaxy. Scientists don't have a theory to explain why.

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On the lighter side of news, Phil Plait's blog, the Bad Astronomers Blog has been nominated for a Bloggie award. The Bad Astronomer's blog is definitely worth adding to your "To Read" list. Go visit his website at http://www.badastronomy.com/bablog/ and then vote for him at http://2006.bloggies.com/ He is in the Best Topical Blog section.

Trivia

Answer's for Show#6 Trivia
  1. Besides Pluto, with other two planets have NS axises that are not between 0 straight up and down and say 45 degrees, remember Earth is at 23.5 degrees which is why we have seasons. (Answer: Venus 177 in retrograde and Uranus 97 spinning on its side rings perpendicular)
  2. Which planet in the solar system has an axial tilt most like ours? (Answer: Mars! 25.19 degrees)
  3. In astronomy does the term albedo mean? (Answer: the degree to which a planet, asteroid, or the like reflects light.)
This week's trivia
  1. The constellation Eridanus is considered the SECOND longest constellation in the night sky, what is the longest?

Well that is it for Astronomy a Go Go! Show #7, I'm glad you tuned in as always you can email us at astronomyagogo@gmail.com or leave a note in our show notes at www.astronomy.libsyn.com. We would love to hear from you!

Music

Music for remember the heros:Fumitaka Anzai song "Forest in the morning"
Category: Moon -- posted at: 5:43 AM
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Untitled

Welcome to our first podcast.

This show features a brief description of what planets and constellations are visible tonight, our full moon and the associated lunar standstill, and current space news.

Thanks to the following artist who provide podsafe music for us all.

Our next show will feature what is visible in the night sky, the Winter Solstice and the reason for the season plus some wonderful music.

Direct download: AAGG_show1.mp3
Category: Moon -- posted at: 7:54 PM
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