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March 2007
S M T W T F S
     
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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 can be found at the RASNZ site
Ian Musgrave has a very handy Southern Hemisphere site called Southern Sky Watch.

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 March 2007

Mercury After the first week of March look for Mercury in the morning twilight, for Northern observers your lower latitudes are more favorable. For S.H. viewers Mercury puts on its best show all year. On the 23rd look for the 0.2 mag planet 10 deg even before astronomical twilight and will stand out in the dark eastern sky 2.8 mag (1st) to 0.2 mag (21st)

Venus Brilliant for both N.H. and S.H. observers. Shining right through the clouds in the Pac NW! Telescopes will show Venus as small and more than 80 percent illuminated -3.8 mag (1st) to - 3.9 mag (21st)

Mars In Capricornus rises after Jupiter and about 1.5 hours before the Sun 1.3 mag (1st) to 1.2 mag (21st)

Jupiter In Ophiuchus rising mid-month around midnight making it easier to squeeze into night time observing. For those of you who like the early morning observing Jupiter you will find him NW of Antares in a beautiful part of the sky, just West of Sagittarius. On the 3rd Jupiter is 90 deg West of the sun providing observers with shadows thrown farthest west and a greater chance of Galilean satellite eclipses. -2.0 mag (1st) to -2.2 mag (21st)

SaturnBeautiful and high in the ESE at dusk. Saturn creeps further West away from Regulus but still near the paws of the Lion. 0.0 mag (1st) to 0.1 mag (21st)

Uranus 5.9 mag (1st) to 5.9 mag (21st)

Neptune will camp out in Capricorn all year long 8.0 mag (1st) to 8.0 mag (21st).

Key Dates for March 2007

Days and Times in UT (help with time) Great site for sunrise and sunset times and a downloadable toolbar application by Steve Edwards

Observations are for 9pm for everyone...happy Equinox!

Astronomical Highlights
March

3 -Full Moon 23:17 UT

-Total Lunar Eclipse
5 -Uranus in conjunction with the Sun
6 -Zodiacal Light visible in N lat. in the West after evening twilight for next two weeks

-Sun's N pole most inclined (7.25 deg)away from Earth
7 -Mercury stationary

-Moon at apogee 4:00 UT

-Spica 1.3deg N of Moon
11 -Daylight Saving Time begins (goofy Congress)

-Antares 0.7deg N of Moon, possible occultation, check IOTA for occultation at your location (Antarctica, southern part of S. America)
12 -Last Quarter Moon 3:54UT
16 -Mars 1.9deg N of Moon 1:00 UT
17 -Mercury 1.4deg N of Moon, possible occultation, check IOTA for occultation at your location
19 -New Moon 2:43 UT, partial solar eclipse

-Moon at perigee Large tides
21 -Equinox 0:07 UT
22 -Mercury at greatest elongation W (28 deg)
25 -First Quarter 18:16 UT
28 -Moon 1.8 deg N of M44 (Beehive Cluster)
29 -Saturn 1.2 deg S of Moon, possible occultation, check IOTA for occultation at your location (N British Isles, N Scand., N Atlantic, E Greenland)
30 -Regulus 1.1 deg S of Moon, possible occultation, check IOTA for occultation at your location (W Europe including British Isles, Scand., Arctic regions)


Monthly Messier*

This month highlights 10 messier objects, most are within reach of binoculars, and over half can be seen with the naked eye.

  • M41 - This cluster is visible as a hazy patch to the naked eye just below Sirius in Canis Major. M41 is resolvable in binoculars and appears fairly loose in telescopes at low power.
  • M93 - This is a small fuzzy patch of light in Puppis, partially resolvable in binoculars. The hardest part of finding this cluster in binoculars is picking it out of a fairly rich region of the Milky Way. Use low power to examine this cluster and the surrounding richness in a telescope. Medium power provides a nice view of the cluster itself.
  • M47 - 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. Telescopes show a fairly loose cluster with stars of wide variety of magnitudes.
  • M46 - 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 NGC2438. It will appear as a faint uneven ring, with a blue/green color.
  • M50 - An open cluster in Monoceros. This is a small hazy patch in binoculars, partially resolvable. Like M93, the richness of the surrounding field is the only difficulty in finding this object. This is a fairly tight cluster at low power in a telescope.
  • M48 - Moving on to Hydra, we find another naked eye cluster. M48 is a large fuzzy patch in binoculars, partially resolvable. Use low to medium power in your telescope for a spectacular view.
  • M67 - In the southeast portion of Cancer is another open cluster, barely visible as a fuzzy patch to the naked eye. Binoculars show M67 as a large hazy patch of light, similar to M46. Use low power to resolve this large, rich cluster in a telescope.
  • M44 - Known as the Praesepe or Beehive Cluster, this open cluster is easily visible to the naked eye as a large, fuzzy patch bigger than the moon. Binoculars or rich field telescopes provide the best view of M44.
  • M81, M82 - This pair of galaxies in Ursa Major are very possible to see in binoculars, they look like a pair of fuzzy stars. Both galaxies will fit into the same low power telescope field. M81 will appear as a large oval gray patch of light. M82 is a pencil like streak of light next to and perpendicular to the long axis of M81.
*Monthly Messier information gleaned from the Royal Astronomical Society of Canada, Moncton Centre Quebec and from the Astronomy Connection website.

Astronomical Highlights for 2007

Earth's major motions for 2007
Perihelion
Jan 3 20h(UT)
First Cross Quarter Day
Feb 2-6
Equinox
Mar 21 00:07(UT)
Second Cross Quarter Day
May 4-7
Solstice
June 21 18:06(UT)
Aphelion
July 4 00h (UT)
Third Cross Quarter Day
Aug 5-8
Equinox
Sept 23 19:51(UT)
Fourth Cross Quarter Day
Nov 5-8
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 March

Gary Kronk's comet and meteor pages
Skyhound Comet pages

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Music Scottish Guitar Quartet -"Romance within you"
The Gentle Good - "Heuldro Haf"
Scottish Guitar Quartet -"Circle"

Direct download: AAGG_sky_tour_Mar_07.mp3
Category:Sky Tours -- posted at: 3:43 PM