
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
- 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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