Tuesday, November 23, 2010
Comet 43P Harrington near NGC 4094

This was going to be a bit of a challenge, 43P is a dim, 14.5 magnitude comet. At astronomical twilight it was only 25 degrees above the horizon, just within range of the GRAS scopes and clearing away from the horizon murk.
The image is a stack of 2 x 90 second frames (after dark frame correction), converted to a single image using Z projection of MAX intensity. It should have been 3 but the scope lost tracking on the last image.

The image to the left is the SkyMap chart of the same field
Labels: astrophotography, comets, Global Rent-a-Scope