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Re: possible impact on Jupiter



 >Last evening (Thursday) I had a call from David Levy.  He said that 
 >a new dark spot has been seen on Jupiter and that it is possibly an 
 >impact from a piece of SL9 that missed in July 1994.  He had not 
 >seen the spot as of last evening.

Thanks for the news.  I've forwarded the message to Don Yeomans, and
he's running an orbital analysis on any potential leftover fragments
from Comet Shoemaker-Levy 9.  If you will recall, Yeomans calculated
the impact times for Comet SL9 back in 1994.  Don has requested more precise 
coordinates of the black spot, and the date/time it was observed.  Please
report any observations to me, and I'll forward them on to Don.

Ron Baalke

 >I looked at Jupiter shortly after it rose last night (about 11:45 pm) 
 >and did not see any spot.  I awoke at 5:30 this morning (without an 
 >alarm clock!) to have a look at the other side of Jupiter and 
 >immediately saw a very small black spot near Jupiter's meridian on 
 >the S edge of the first faint band S of the large S equatorial band 
 >(perhaps at about S latitude 20 degrees(?)).  10 minutes later it had 
 >noticeably rotated with Jupiter away from the meridian.  I could see 
 >it in all three of my telescopes (444 mm, 200 mm, and 100 mm, 
 >although in the smallest telescope it was distinct but not obvious 
 >due to its tiny size).
 >
 >According to the Observer's Handbook, no shadows of the Galilean 
 >satellites were in transit while I was looking at the new dark spot 
 >(from 5:30 to 6:15 this morning, Friday, Aug. 7).
 >
 >David (Levy) said that if there was an unexpended fragment of SL9, 
 >now is the time when it would be near Jupiter.
 >
 >Has anyone else seen the spot or have any other information on 
 >this apparent encore to an historic event??  Since it is located in 
 >System II on Jupiter where Jupiter rotates 36.26 degrees/hour, the 
 >spot should be near Jupiter's meridian at 1:30 am Saturday 
 >morning (i.e. tonight).  I shall be looking! 
 ....
 
 >   Roy Bishop
 

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