M81 and M82

M81 and M82 taken last Friday night.

M33

M33 taken the night as NGC 891

Asteroid data reduction

The photo above was taken on 11/2/08. The target object was Comet 44P. I took two sets of 10 2 minute exposures about 36 minutes apart. The initial processing (alignment, stacking) was done using AstroArt 4.0. The initial astrometry was done using AstroArt against 5 UCAC2 stars. The final astrometry was done using Astrometrica against several thousand USNO B.0 stars. Astrometrica can also overlay the calculated positions of all known asteroids and comets in the field of view. 44P is in the middle of the field almost exactly as plotted. I found 7 others. Could be more.

Left of 58416 there are two list so that you cannot read either; they are in the photo. 43620, 08184 and 30967 were found. Two were found near 08107.

NGC 891

I took the above image on November 1 with my C-14/Hyperstar (F 1.9) and CCD-Labs Q-453. 10 frames at 30 seconds each.