Walter's LogBook
	Sat/Sun September 18/19, 1999

I set up in the back yard in Oshawa tonight (with computer in the nice warm garage). Average transparency, no wind, heavy dew, little bit of fog towards dawn. The low only hit +13C tonight. I started at 2:00 and imaged M31 and M33 at f/2 (f/6.3 with an f/3.3 tele-compressor), then did some visual variable star observing (from 4:30 to 5:30).

Today I re-processed some old NGC 7331 images and actually added 21 from Sept 11/12 and 56 from Sept 14/15 for a total of 77 frames. The extra 10½ minutes defintely helps. MaxIm DL handled the rotation necessary to register the images from different nights properly. The trick is to add one image from each night together first and determine where the rotation point is on the image.

M 31	20½ minutes (41 x 30s)
M 31 at f/2 (10" f/6.3 LX200 with an f/3.3 compressor).

M 33	20½ minutes (41 x 30s)
M 33 at f/2 (10" f/6.3 LX200 with an f/3.3 compressor).

NGC 7331	38½ minutes (77 x 30s)
NGC 7331 made with images from two different nights. Galaxies on left side (from top to bottom) are: NGC 7336, NGC 7335, and NGC 7337 (on top of star 2nd from left).