anderswallin.net » M105 http://www.anderswallin.net Wed, 08 Feb 2012 12:05:52 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 M95, M96, and M105 http://www.anderswallin.net/2008/04/m95-m96-and-m105/ http://www.anderswallin.net/2008/04/m95-m96-and-m105/#comments Tue, 01 Apr 2008 13:09:26 +0000 admin http://www.anderswallin.net/?p=260

A little left of Regulus and where Saturn is right now in Leo there's a group of three Messier objects: Two spiral galaxies M95 (magnitude 11.4), and M96 (magnitude 10.1), and an elliptical galaxy M105 (magnitude 10.2).

This is a stack of around ten 8 s exposures through an EF 70-200/4L set to 200mm and full aperture. Resolving details from the galaxies will require a longer focal length and much longer total exposure time. Focus is pretty good, and stars appear as points even in the corners - but the image shows severe vignetting. I need to learn how to use flat-frames to correct for that.

For those of you that don't spot the galaxies immediately from the pic above :) , below I've indicated their positions:

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