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January 2007
S M T W T F S
     
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14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31

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Download this month's sky map!

Kym Thalassoudis does a wonderful job creating accurate and easy to use star maps every month! Visit his site at www.skymaps.com for skymaps and links to other useful astronomical sites. Also a great portal for astronomical gifts!

Northern hemisphere sky map
Southern hemisphere sky map

Those in the Southern Hemisphere should also visit James Barclay's site for a great tour of the Southern Hemisphere December sky.

Another great site for Southern Hemisphere viewers is the Royal Astronomical Society of New Zealand's Southern Hemisphere Calendar found at the RASNZ site

Download "What's up 2007: 365 days of Skywatching" by Tammy Plotner, published by Universe Today (Faser Cain) it is a fantastic and it is free!

Planets for January 2007

Mercury will be in superior conjunction (behind the sun) on Jan 7th and not easily visible until late in the month as an evening planet. The first week of February marks it's greatest elongation and better viewing. -1.0 Mag peaking at -1.3 Mag mid-month.

Venus sits low on the SW horizon in the evening twilight. By mid month Venus is setting after twilight in full dark. An almost fully illuminated disk shines at -3.8 mag.

Mars starts off the month in Ophiuchus rising just 1.5 hours before the Sun the 1.5 mag planet competes with 1.06 variable star Antares (which means "like" Mars) and together with Jupiter they make a nice trio. By the end of the month Mars has moved into Sagitarrius.

Jupiter starts the month rising 1 hour before the sun. Jupiter, at -1.8 mag, spends the first 11 months of the year in Ophiuchus!

Saturn spends the entire year in Leo. Rising mid-evening at the beginning of the month and by the middle of the month is rising in the early evening making the 0.2 mag planet easy to share with friends.

Uranus at 5.9 mag spends the entire year in Aquarius starting the month almost on top of Lambda Aquarii but by the end of the month it is 1 deg E of Lambda.

Neptune another happy camper this 8.0 mag planet will camp out in Capricorn all year long. He starts the month out 1 deg North of Iota Capricorni. On the 25th of the month use Mercury to help you find Neptune Mercury will be less than .25 degs from Iota and much easier to see. After mid-month Neptune (mid latitudes NH) will be setting in twilight getting more difficult to see.

Key Dates for January 2007

Days and Times in UT (help with time)

Observations are for 8pm for the mid-northern latitudes and for 10pm for the mid-southern latitudes.

Great site for sunrise and sunset times and a downloadable toolbar application by Steve Edwards

Astronomical Highlights
January

3 -Full Moon 13:57 UT

-Earth at Perihelion (the closest point to the sun) 20 UT
4 -Quandrantid Meteor Shower peaks at 00:30 UT
5 -Moon passes 1 degree north of the Beehive Cluster (M44)
7 -Mercury at superior conjunction (on the far side of the Sun from us)
10 -Moon at apogee (furthest from Earth)
11 -Last quarter moon 12:45 UT

-Spica 1.1 degrees N of Moon, Check the International Occultation Timing Association (IOTA) for possible occultation from your location
14 -Venus (in the evening) and Jupiter (in the morning)start their tour as our "bookend" planets.
15 -Look for the Moon and Antares very close to each other in the pre-dawn sky.
17 -Mars 5 degree N of Moon
19 -New Moon 4:01 UT
20 -Venus .8 degrees N of Moon, Check IOTA for possible occultation from your location
20 -Uranus .4 degrees South of Moon, Check IOTA for possible occultation from your location
24 -Double shadow transit on Jupiter
25 -Moon at perigee (closest to Earth) 13h UT

-First Quarter Moon 23:01 UT
27 -Moon very near the Pleiades 17hUT. Check IOTA for possible occultation from your location
31 -Mercury 7 degrees below Venus low on the Western horizon after sunset


Southern Hemisphere Calendar can be found at the RASNZ site

Monthly Messier*

  • M33 - This is a very large (about the size of the full moon) face on spiral galaxy in the constellation Triangulum. The total light from M33 is about magnitude 5.3, but when spread out over its large area it yields a very low surface brightness. The best and easiest views of M33 can be found with a pair of binoculars. Look for a large, round hazy patch of light with little detail at first glance. M33 can be glimpsed with the naked eye in dark clear skies. Finding M33 in a telescope can be a challenge because of its size. Use the widest field eyepiece you have and look for a change in light level to identify the galaxy.
  • M103 - This is a fairly small, sparse open cluster in Cassiopeia. Look for a tight group of stars in binoculars, being careful not to mistake it for several other clusters in the same area. Through a telescope the cluster is very sparse, four bright stars amidst the slight glow of much fainter companions.
  • M52 - This rich open cluster in Cassiopeia is fairly easy to see in binoculars as a faint smudge of light. A small to mid telescope will begin to resolve this cluster. Look for a triangular patch of light with some stars clearly resolved, but most of the cluster members provide only a hint of graininess.
  • M76 - Known as the Little Dumbbell, this planetary nebula in Perseus is one of the dimmest objects in the Catalog. Look for a small, faint, oblong patch of light. Not a very obvious object, if you don't see it at first try varying magnifications in an attempt to bring it out. Fortunately M76 is located near a bright star, which aids in locating the correct field to search.
  • M34 - This is a large and bright, but sparse open cluster located in Perseus. Visible as a faint patch of light to the naked eye, it is very obvious and easy to resolve in binoculars. In fact, binoculars provide a better view of this cluster than most telescopes.
  • M74 - This galaxy in Pisces is a smaller and fainter version of M33, a face on spiral galaxy with low surface brightness. M74 is arguably the most difficult object to find in the Catalog. You will need very dark, clear skies to easily see it, anything less than perfect conditions will make M74 nearly impossible to find. Look for a very faint fuzzy star, which is the bright central condensation, surrounded by a very faint glow. Try all of your tricks on this one; star hop to the correct field, try varying magnification, tap the scope to detect the galaxy through its motion. If all of the above fail, try again another night or seek darker skies.
  • M77 - This is a small faint galaxy in Cetus. Possible to see it in binoculars, but very difficult. Look for a faint fuzzy star. Through a telescope look for a fuzzy, oval shaped patch of light, bright in the center, fading towards the edges.
*Monthly Messier information gleaned from the Royal Astronomical Society of Canada, Moncton Centre Quebec and from the Astronomy Connection website.

Historical and Current Events

...Did you know?
December

4 -Wilhelm Beer's 210th Birthday (1797)
5-10 -209th Meeting of the American Astronomical Society (AAS), Seattle, Washington
8 -Stephen Hawking's 65th Birthday (1942)

-Johannes Fabricius' 420th Birthday (1587)
9 -Asteroid 2006 XP4 Near-Earth Flyby (0.074 AU)
11 -220th Anniversary (1787), William Herschell's Discovery of Uranus Moons Titania and Oberon
12 -Sergel Pavlovich Korolev's 100th Birthday (1907)
17 -Harvey Nininger's 120th Birthday (1887)
17-20 -Deep South Texas Stargaze 2007, Escondido Ranch, Texas
19 -Johann Bode's 260th Birthday (1747)
21 -John Couch Adams' 215th Birthday (1792)
24 -Harold Babcock's 125th Birthday (1882)
26 -45th Anniversary (1962), Ranger 3 Launch
27 -40th Anniversary (1967), Apollo 1 Fire (Gus Grissom, Edward White & Roger Chaffee)
31 -Deadline to fly your name to Mars or the Moon, Planetary Society

Astronomical Highlights for 2007

Earth's major motions for 2007
Perihelion
Jan 3 20h(UT)
Equinox
Mar 21 00:07(UT)
Solstice
June 21 18:06(UT)
Aphelion
July 4 00h (UT)
Equinox
Sept 23 19:51(UT)
Solstice
Dec 22 06:08(UT)

Planet Positions for 2007

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Venus Sgr Aqr Psc Ari Tau Gem Leo Sex Cnc Leo Leo Vir
Mars Oph Sgr Cap Cap Aqr Psc Ari Tau Tau Gem Gem Gem
Jupiter Oph Oph Oph Oph Oph Oph Oph Oph Oph Oph Oph Oph
Saturn Leo Leo Leo Leo Leo Leo Leo Leo Leo Leo Leo Leo
Uranus Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu Aqu
Neptune Cap Cap Cap Cap Cap Cap Cap Cap Cap Cap Cap Cap

Eclipses for 2007

March 19 - partial solar eclipse (see map, times, and animation!): The first solar eclipse of 2007 occurs at the Moon's ascending node in Pisces and is visible from eastern Asia and parts of northern Alaska

September 11 - partial solar eclipse (see map, times, and animation): The last eclipse of 2007 is a partial solar eclipse at the Moon's descending node in southern Leo. Its visibility is confined to parts of South America, Antarctica and the South Atlantic

March 3-4 - total lunar eclipse (see map): The beginning of the umbral phase visible in the Arctic region, Africa, Europe, Asia except for extreme eastern region, most of Indonesia, western Australia, Queen Maud Land of Antarctica, extreme eastern South America, Greenland, the Indian Ocean, the South Atlantic Ocean, and the eastern North Atlantic Ocean; the end visible in Africa, Europe, western Asia, Queen Maud Land of Antarctica and Antarctic Peninsula, South America, eastern North America, Greenland, the Arctic region, the Atlantic Ocean, the western Indian Ocean, and the extreme eastern South Pacific Ocean.

August 28 - total lunar eclipse (see map): The beginning of the umbral phase visible in North America, South America except extreme east, Antarctica except for Enderby Land, New Zealand, eastern Australia, extreme northeastern Asia, the Pacific Ocean, and the western Atlantic Ocean; the end visible in New Zealand, Australia, most of Antarctica except Queen Maud Land, Indonesia, eastern Asia, western North America, the Pacific Ocean, and the southeastern Indian Ocean.

Eclipse information from: NASA Eclipse Homepage, Eclipses Online (HM Nautical Almanac Office, UK in coordination with the U.S. Naval Observatory)

Meteor Showers for 2007

As luck would have it, all the major meteor showers reach their peaks in 2007 with the Moon out of the sky. Any of these showers can produce dozens of shooting stars each dark hour leading up to dawn.

Mark your calendar to look for...
  • Lyrids on April 23rd
  • Perseids on August 13th
  • Orionids on October 21st
  • Leonids on November 18th
  • Geminids on the night of December 13-14 (Meteor enthusiasts are keenly awaiting the Geminids in 2007 because their progenitor, the defunct comet Phaethon, precedes them in a flyby of Earth on December 10th.)

Comets for January

Gary Kronk's comet and meteor pages
Skyhound Comet pages

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Music Scottish Guitar Quartet -"Romance within you"
Three Blind Mice - "Watchstar"
Friction Bailey - "Auld Lang Syne"

Direct download: AAGG_sky_tour_Jan_07.mp3
Category:Sky Tours -- posted at: 3:26 PM