Patrick, My bad and you are correct. I am not a planetary observer as I stick 99% of my time with DSO's. What I saw was a shadow from one of Jupiter's moon as shown in this video http://www.youtube.com/watch? v=E7yZqLA4vXo. Having never observed a shadow transit I mistook it, and being tired . . . I didn't check the transit times on this (its even on a list of highlight events to watch that I get daily). So how does everyone like their egg from my face . . . scrambled or over easy? Guess I should have cut class tonight and gone to the SLAS general meeting . . . Oh well, I wondered why the spot was located in the center and not on the pole and I'm not the first to have done this as i saw this morning after reading your post Patrick that others on the night it occurred and the next night imaged shadow transits and posted their images thinking it was the scar. Interesting to me is on that form the discoverer Anthony Wesley goes by the name Bird, so this is being nicknamed the Bird Strike. In case you missed it here is CNN's interview with Anthony Wesley: http://edition.cnn.com/video/?/video/tech/2009/07/21/ bpr.jupiter.spot.astronomer.cnn I'll withdraw from the forum now and everything else and go back into the corner with my Dobs and DSO's, wipe the egg off. Clear skies to each of you! On 2009-07-22 09:59, Patrick Wiggins wrote:
Hi Jay!
Congratulations on seeing the spot. Well done.
But now I'm confused. If I'm reading Kurt's data correctly it does not show that a spot transit was to have been visible tonight (the 22nd UT).
What am I missing (other than missing seeing the spot tonight <g>)?
patrick
On 22 Jul 2009, at 03:33, JayLEads wrote:
On 2009-07-22 03:09, Canopus56 wrote:
Repost per discussion at tonight's club meeting. These are
predicted transit times for the Jupiter comet impact hole in the Jovian atmosphere:
WinJUPOS 8.0.4 (Jupiter), C.M. transit times, 2009/07/20 14:34 Object longitude: L2 = 216.0° + 0.0000°/d * (T - 2009 Jul 19.5) Time interval: 2009 Jul 20.0 ... 2009 Jul 31.0 Only if celestial body is visible Geographic longitude and latitude: -111 00, +42 00 Output format: Date UT (C.M. of System 2, Altitude)
2009 Jul 20 11:56 ( 216°, 24°) 2009 Jul 21 07:47 ( 216°, 30°) 2009 Jul 23 09:25 ( 216°, 34°) 2009 Jul 24 05:16 ( 216°, 13°) 2009 Jul 25 11:03 ( 216°, 27°) 2009 Jul 26 06:54 ( 216°, 27°) 2009 Jul 28 08:32 ( 216°, 33°) 2009 Jul 29 04:23 ( 216°, 8°) 2009 Jul 30 10:10 ( 216°, 30°)
Amateur discovery image Anthony Wesley, Australia, 7-19-2009 http://www.acquerra.com.au/astro/gallery/jupiter/
20090719-155537/large.jpg