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Posts Made By: Dave Mitsky

May 17, 2005 10:26 PM Forum: After Dark

Tuesday, May 17

Posted By Dave Mitsky
Tuesday, May 17

Saturn and Venus are 45 degrees apart this evening. Plato is well-placed for observation tonight. Asteroid 14 Irene (magnitude 9.0) is at opposition at 6:00 UT.

Dave Mitsky

May 18, 2005 01:56 PM Forum: After Dark

Wednesday, June 18

Posted By Dave Mitsky
Venus is 6 degrees north of the first magnitude star Aldebaran at 5:00 p.m. EDT (21:00 UT) this evening. A sunrise lunar light ray is predicted to occur in crater Scheiner (see http://www.lunar-occultations.com/rlo/rays/scheiner.htm for further information) at 8:04 (00:04 UT). Jupiter's Great Red Spot transits the CM tonight at approximately 10:18 p.m. EDT (2:18 UT).

Dave Mitsky

May 19, 2005 08:22 AM Forum: After Dark

Thursday, May 19

Posted By Dave Mitsky
Jupiter is 0.4° north of the Moon at 6:00 p.m. EDT (22:00 UT). An occultation is visible from the southern part of Central America to South Africa.

Dave Mitsky

May 19, 2005 02:08 PM Forum: Solar System Observing

A Spot and a Ring, 2005/05/19 UT

Posted By Dave Mitsky
After teaching the ASH introductory astronomy class on galaxies and cosmology last night, I did some observing with the class and some fellow ASH members using the 17" f/15 classical Cassegrain under partly to mostly cloudy skies. However, the seeing was quite good and Jupiter's Great Red Spot was revealed quite nicely at 202 and 259x as it approached a transit of the central meridian at 2:18 UT. We also viewed the Moon at 162 and 259x but the naked-eye view was perhaps more interesting this time around as a distinct 22 degree lunar halo was visible.

http://www.sundog.clara.co.uk/halo/circmoon.htm

http://www.astropix.com/HTML/G_MOON/MOONHALO.HTM

Dave Mitsky


May 20, 2005 05:39 AM Forum: After Dark

Friday, May 20

Posted By Dave Mitsky
Neptune is stationary in right ascension today. Io is occulted by Jupiter at 4:00 p.m. EDT (20:00 UT). Io reappears from eclipse by Jupiter's shadow at 7:12 p.m. EDT (23:12 UT). The Great Red Spot transits Jupiter's central meridian at approximately 11:57 p.m. EDT (3:57 UT, 2005/5/21).

Dave Mitsky

May 21, 2005 04:16 AM Forum: After Dark

Saturday, May 21

Posted By Dave Mitsky
The asteroid 1 Ceres (magnitude 7.2) lies 1 arc minute south of Delta Librae (magnitude 4.9) this evening.

Dave Mitsky

May 22, 2005 03:52 AM Forum: After Dark

Sunday, May 22

Posted By Dave Mitsky
Jupiter's Great Red Spot transits around 1:35 a.m. EDT (5:35 UT) on Monday morning.

May 22, 2005 04:20 AM Forum: Solar System Observing

Thursday's Occultation

Posted By Dave Mitsky
I just came across some images of Thursday's lunar occultation of Jupiter, which was visible only from parts of south Africa and northern South American. They can be seen at http://lunar.astrodatabase.net/

Dave Mitsky

May 23, 2005 03:13 PM Forum: After Dark

Monday, May 23

Posted By Dave Mitsky
A double Galilean satellite shadow transit (Europa and Io) begins at 12:43 UT. Full Moon, known as the Planting or Milk Moon, occurs at 20:18 UT. The first magnitude star Antares is 0.8 degree south of the Moon at 8:00 UT (2005/05/24) - an occultation is visible in North America, Central America, and the northern portion of South America.

http://www.space.com/spacewatch/050520_antares_occult.html

Dave Mitsky

May 24, 2005 01:04 PM Forum: Deep Sky Observing

A Different View of the Sombrero

Posted By Dave Mitsky
http://antwrp.gsfc.nasa.gov/apod/ap050511.html

Dave Mitsky

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