QUOTE(Eithanius @ May 18 2006, 10:16 AM)
Which epoch system are you following...?
Sorry, I messed up the date again....it should be 16th May morning.
Epoch JNow or J2000 doesn't quite matter both are quite close. I'm using J(Now) by default.
Anyway, to save you the trouble of typing those figures in again (my fault for the mistake!) I'll give you my SNP data for both 15th & 16th May at 4.00 am.
--------------------------------------------------------
@ 0400hrs, 2006/05/1673PSW3C RA (JNow): 22h 7.710m
Dec (JNow): 17deg 31.106'
RA (J2000): 22h 7.409m
Dec (J2000): 17deg 29.269'
HIP 109212RA (JNow): 22h 7.801m
Dec (JNow): 18deg 1.841'
RA (J2000): 22h 7.500m
Dec (J2000): 18deg 0.039'
Angular Separation:
30' 47"--------------------------------------------------------
@ 0400hrs, 2006/05/1573PSW3C RA (JNow): 21h 47.221m
Dec (JNow): 20deg 9.367'
RA (J2000): 21h 46.928m
Dec (J2000): 20deg 7.677'
HIP 109212RA (JNow): 22h 7.800m
Dec (JNow): 18deg 1.837'
RA (J2000): 22h 7.500m
Dec (J2000): 18deg 0.039'
Angular Separation: 5deg 18' 19"--------------------------------------------------------
Notice that the data for HIP 109212 is exactly the same between your SNP and mine - so we are on the same SNP database for the stars.
A slight deviation for fragment C at 4.00 am, 15th May - less than 2'. You're using the SNP download, right? I'm using the JPL/NASA data. So that accounts for the marginal difference. Pls do a check if your SNP calculation for 4.00am 16th May matches mine to within a couple of minutes too.
If so, I think I have to conclude that I wasn't able to see the comet because the sky still wasn't clear enough. I could see the surrounding stars all the way down to magnitude 9, though. Those images posted by others gave the false impression that this comet would be quite easy to see.......
Looks like I'll have to really camp out in PD to see this comet!