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Astronomy Club of Asheville, NC

March - 2004

"The best thing that we're put here for's to see;
The strongest thing that's given us to see with's
A telescope. Someone in every town
Seems to me owes it to the town to keep one."
(From Robert Frost's 1923 poem
"The Star-Splitter")

MOON:
Full Moon: Mar 6
New Moon: Mar 20

STAR GAZE (Mar 19):
Sun: Sets at 6:35pm, astronomical twilight ends at 8:05pm and begins at 5:13am the next morning. The Sun rises the next morning at 6:33am. Between astronomical twilights, we get about 9.1 hours of darkness.

Moon: (illuminated 3%) The Moon sets at 5:32pm.

Jupiter & it's moons: Jupiter rises at 5:07pm. Io disappears behind Jupiter's disk (is "occulted") at 3:00am, and reappears from occultation by Jupiter's shadow at 5:40am. Jupiter culminates (is highest in the sky) at 11:37am. The Great Red Spot crosses Jupiter's meridian about 9:00pm. Jovian moon Io reappears from occultation behind Jupiter at 2:20am.

Saturn: Saturn has already risen by sunset. It culminates at 7:10pm. The "star" located about 4 ring-diameters away to the west-north-west is really the moon Titan. Saturn reached opposition on December 31 and it's moving further and further into the western sky, to be lost in the sun's glare in a few months. The rings appear very tilted to our view at this time, so Cassini's Division and other ring features are visible.

Asteroids: Ceres (in Gemini) is high in the sky at sunset on the night of the gaze. It culminates at 9:45pm. You can see it in binoculars as a star-like object at magnitude 8.2.

SOLAR SYSTEM:

Mercury & Venus: Very good showings late in the month in the evening sky.

Jovian Events:
March 5: Europa's shadow begins transit only 3 minutes after the moon itself, & Io's shadow begins transit only 2 minutes after Io itself. So, at best, the moon would appear to only have a dark edge to it. The Jovian moon events occur so close to Jupiter's opposition (March 3-4) that the shadows probably will not be detectable. (We are almost directly between the Sun & the Moon, so the moons' shadows are almost directly behind the moons.)

March 12 (in the morning): A similar event (Europa & Io) happens, but Jupiter will be only 22 degrees above the horizon.

March 21 (Sunday): At 12:38am there seems to be a 7 minute period between Io's shadow beginning ingress and Ganymede's transit ending. So for 7 minutes, 2 moons and 2 shadows. GRS not visible.

March 29 (Sunday): Good possibilities for Io & Europa beginning about 8:00pm, ending at midnight. The shadows have moved away from behind the moons, so instead of following by 2 & 3 minutes, they follow by 36 minutes and 93 minutes. At mid-event (3:30 UT, 10:30 EST), Jupiter will be at 44 degrees altitude (not great, but OK).This info is from p110 of March S&T. (Added treat: The Great Red Spot (GRS) will be on Jupiter's meridian at 10:30 EST)).

Comet C/2002 T7: : Discovered on October 14, 2003 in Gemini, it is now located near the corner star Algenib in Pegasus at magnitude 6.0 and will be lost in the Sun's glare by late March. Perihelion will be in April, but visible then only from the southern hemisphere. See Sky & Telescope article and MISAO map.

5 Planets are visible at once, late in the month.

DEEP SKY OBJECTS (DSO's)  (Not the biggest or brightest, but interesting):

NGC 2244 (open cluster) in Monoceras. Associated with the large but faint "Rosette Nebula".

R Leporis (Hind's Crimson Star), a Mira-type variable with a 427 day period. One of the reddest stars we can see, but you'll need a larger telescope to bring out the color . Catch it early in the evening.

NGC1990 (reflection nebula) with associated "Bok Globules". Supposedly an 8" or 10" scope at 250x will reveal the globules. Also, NGC1990 is surrounded by "Herbig-Haro", or "H-H", bi-polar jets! These appear as 14th mag fuzzy stars, so be real sweet to the folks with the big scopes this month. Catch it early in the evening. (See 2003 Feb S&T, p101)

HIGHLIGHTS:

Spring Equinox is March 20. The Sun crosses the celestial equator into the northern celestial hemisphere.

CLUB STARGAZE:
You can check the AstroAsheville Yahoo group (or call Tim @ 251-0040 or John @ 251-1933 x17 (before 5:00) or 667-9268 (after 5:00)) for a go/no-go decision and to verify location.

CLUB MEETING:
Indoor club meetings are usually the first Thursday of every month, at 6 p.m. in the Sim’s Group offices (230 Short Coxe Ave., Asheville, NC.)

Happy Starwatching!   Dress Warm!
Blue Ridge Parkway Information Line is 828-298-0398

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(Much of the above info is derived from Sky & Telescope magazine, Ottewell's Astronomical Calendar, The Night Sky Observer's Guide, Burnam's Celestial Handbook, Megastar 5.0, Planets202, the ol' Miller Planesphere, and a little (very little) common sense.)
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Archived Monthly Sky 2002: Feb Mar Apr May June July Oct Nov Dec
Archived Monthly Sky 2003: Mar Apr May June July Aug Sep Oct Nov  Dec
Archived Monthly Sky 2004: Jan Feb