All images taken with the 12" with the SBIG ST-8E. All images displayed on this page (unless otherwise noted) have been binned by a factor of 4, so pixels are 2.43 arcsec. (The entire frame is 15 x 10 arcmin.) Images are hyperlinked to originals which are unbinned (or binned as originally acquired as the case may be).

2004-09-21

M57, 55 x 10s
M74, 92 x 10s
M33, 40 x 15s

2004-09-22 - Used autoguider for first time. Also corrected orientation, and used flat fielding for first time.

M74, 4 x 2m
M74, 1 x 30m

2004-09-23

M92, 1 x 10m. Demo of why it's important to get flat-fielding right.
M15, 4 x 10m. Log scaling.
M74, 7 x 10m.
Saturn, not binned, pixels = .609". 9 x .5s.

2004-09-26, 09-30, 10-01 - Trying out color images. This is not trivial.

Albireo, not binned, pixels = .609". LRGB: (16,8,8,23) x .2s.
M76, LRGB: (2,1,1,2) x 10m.
M57, RGB: (4,4,5) x 5m.

2006-03-03 - M42 with 8x10s exposures in 9 frames each of LRGB. Click on picture for larger/alternate version.

M42

2006-02-14 - Supernova 2006X in M100 that went off in celebration of Bohdan Paczynski's birthday. I'm not sure why there's a streak of light in the upper left (this is flat-fielded). This thumbnail is binned by 2, not 4.


M100, 8 x 5m, autoguided

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