Carpe Noctem - Seize the Night!

Image courtesy of Dr. Tyler Nordgren and his
students.
ORION
Eight stars pin
his frame
to the night.
He lies just above
the trainyard,
almost ready
to rouse.
Not quite yet.
Eight silent silver bells
take all evening
to stand
just as our
star
fades him
back to sky.
Lauren Gunderson

Orion, seen from Hubble and Spitzer Space Telescopes. Image
credit: NASA/JPL-Caltech/STScI (infrared, ultraviolet and visible-light colors)
Listener Feedback
From Ted - "I'd like to suggest a great book that I stumbled across at Barnes
& Noble about 18 months ago. It is called "The
Next Step, Finding and Viewing Messier's Objects." It was written by Ken
Graun. The main part of the book is a section about the Messier Object. There
are 2 pages per object. It has a little history and notes from Messier's
original description. It gives the coordinates and a reference to it's location
on star maps included in the book. What really sets this book apart is that it
includes pictures taken by the author thru a 4 inch scope. It allows you to see
exactly what you are looking for. The book also has a biography of Charles
Messier, and a few general tips on astronomy. The book it not very large so it
is easy to carry with you. I find the book extremely helpful to show people what
they are looking for before they step up to the eyepiece. I hope you can find
the book to review and recommend it on a future podcast. "
Don has another book suggestion: "A great book for gifts is "There
Once Was a Sky Full of Stars", by Bob Crelin. Great for helping children
(and adults) learn about the effects of light pollution."
Special Thanks!
Woodland Hills Camera and Telescope for helping our club
buy a PST for use with our club outreach!
Just a reminder, Woodland
Hills Camera and Telescope is offering a 5% discount for any AAGG listener!
Just put "AAGG" in the discount code box at checkout to receive your
discount.
Holiday lights in the sky - Stellar Spectrum
| Class |
Temperature |
Star colour |
Mass |
Radius |
Luminosity |
Hydrogen lines |
Examples |
| O |
30,000 - 60,000 K |
Bluish ("blue") |
60 |
15 |
1,400,000 |
Weak |
10 Lacerta, Zeta Puppis, Lambda Orionis |
| B |
10,000 - 30,000 K |
Bluish-white ("blue-white") |
18 |
7 |
20,000 |
Medium |
Rigel, Spica, the brighter Pleiades |
| A |
7,500 - 10,000 K |
White with bluish tinge ("white") |
3.2 |
2.5 |
80 |
Strong |
Vega, Sirius |
| F |
6,000 - 7,500 K |
White ("yellow-white") |
1.7 |
1.3 |
6 |
Medium |
Canopus, Procyon |
| G |
5,000 - 6,000 K |
Light yellow ("yellow") |
1.1 |
1.1 |
1.2 |
Weak |
Sun, Capella |
| K |
3,500 - 5,000 K |
Light orange ("orange") |
0.8 |
0.9 |
0.4 |
Very weak |
Arcturus, Aldebaran |
| M |
2,000 - 3,500 K |
Reddish orange ("red") |
0.3 |
0.4 |
0.04 |
Very weak |
Betelgeuse, Antares |
Mnemonics
for the Harvard Spectral Classification Scheme
Official Bureaucrats
At Federal Government Kill Many Researchers' National Support
Only Boring
Astronomers Find Gratification Knowing Mnemonics!
Oh, Bring A Fully Grown
Kangaroo My Recipe Needs Some!
Oh Backward Astronomer, Forget Geocentricity;
Kepler's Motions Reveal Nature's Simplicity.
Oh Bother, Astronomers
Frequently Give Killer Midterms
Sun
sunspots
Planets


Evening Planets
- Venus - Mag -3.8 in Sagittarius but currently lost in the Sun's glare.
- Neptune - Mag +7.9 in Capricorn will also be better for dark evenings and is
less than 1 degree north of the +4.3 magnitude star Iota Capricorni
- Uranus - Mag +5.9 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 under 1
degree east of Lambda Aquarii. Find the tipped over letter Y of Aquarius, go 4
thumbwidths southeast to find Lambda, and then a smidgen Southwest.
- Saturn - Mag 0.4 on the western edge of Leo just west of Regulus. An easy
catch!

Morning Planets
- Jupiter - Mag -1.6 in Scorpius visiable very low on the ESE horizon an hour
before sunrise. Finally had a clear horizon before the storm hit and it was very
bright and yes, low and south.
- Mars - Mag 1.5 just barely above the Sun's glare between the Sun and Mercury
- Mercury - Mag -0.5 barely off the horizon moving quickly towards the sun.
Use the bright orange/red Arcturus and "spike" almost horizontally South to
Spica. Mercury sits 25 degrees ESE of Spica.
- Saturn - Mag 0.4 on the western edge of Leo preceeding Regulus. Saturn is
slowly inching its way towards Cancer
Constellations

Time for a quiz!
Fornax - the Furnace - Invented by Lacaille during his stay at the Cape
of Good Hope in 1751 - 1752 (who else!)
Viewing
Naked eye and binoculars - the Pleiades

Mentioned by Homer about 750 B.C.At least 6 member stars
are visible to the naked eye,
-the Hyades At a distance of only about 150 light years, the Hyades form one
of the nearest open cluster to Earth.

Greek mythology, nymphs; daughters of Atlas and Aethra. They cared for both
Zeus and Dionysus as infants. In recognition of these services, they were placed
among the stars of the constellation Taurus, where their rising and setting
corresponded to the rainy seasons.
Aldebaran (Alpha Tauri), the bright red star, is not a member of the cluster
and situated much closer to us (about 60 light years, a factor 2.5 closer than
the Hyades).
Telescope -
Northern Hemisphere chart You can use Taki's chart #14, chart
72 in the Pocket Sky Atlas NGC
7380 bright irregular open cluster, 7.2 mag, with bright nebulosity around.
Once edge looks scalloped.
NGC 7510- the "Little Piggy"
cluster (Alice's name only) in Cephus 7.9 wedge or trapazoid shaped open
cluster. Right across the boarder from...
M52 - evil dustbunny cluster,
6.9 open cluster in Cassiopeia
and just a few degree towards Polaris from
Caph (beta Cassiopeia) is NGC
7790
Gifts for the Astronomer!
Do it yourself (DIY) gifts
There are
so many creative things you can do for your astronomer, or for yourself, that
won't cost and arm and a leg! Consider the following:
- "Rite
in the Rain" paper - perfect for creating your own lists without having to
pull them in and out of sheet protectors.
- Hats, scarves, mitten (especially with flaps so you have finger access)
- Renovate an old hard sided Samsonite style suitcase for observing! Paint it
and find some nice foam padding for the inside.
- Cold weather observing 'basket' - Be Creative!! a good thermos, hot cocoa,
snacks, handwarmers, and maybe a favorite CD all 'wrapped' in a new accessory case
- Warm weather observing 'basket' - Have Fun!! snacks, a nice wide brim hat,
some new shades, Miracool
bandana, some oil free sunscreen and bug spray, all 'wrapped' in a Pelican case
- Online Star Atlases - print them out, put them in protective sleeves,
laminate them or print them on waterproof paper and bind them into a book that
will open flat!
- Fraser Cain at Universe Today emailed to let me know that there will be a "What's up 2007" so
keep an eye on his site!
- My favorite give-away Messier Telrad
Charts - by John Small courtesy of the Amateur Telescope Makers of Boston.
- Messier
Telrad Charts - From Utah Skies
- Caldwell
Telrad Charts - From Utah Skies
For the woodworkers out
there...
Binocular
Mounts
Observing Chair - example or the Cats
Perch Plans
On to the shopping...
Telescope accessories
Woodland Hills Camera and
Telescope is offering a 5% discount for any AAGG listener! Just put "AAGG"
in the discount code box at checkout to receive your discount.
Off the scope
References
Atlases
Planisphere
Books
...there are just toooo many but here is a
start....
Reader suggested books!
Comets
Check out the Sky Hound site. "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
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is of interest to our customer base, Woodland Hills Camera and Telescope is
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