Not your run of the mill object to image.
The extremely faint Carina Dwarf Galaxy.
The surface brightness of the galaxy at 16.0 Vmag/sqdeg is much fainter than the natural sky glow at the darkest sights (13.0 Vmag/sqdeg.)
Since I don't use a GOTO mount finding and framing the object was somewhat challenging. I downloaded the DSS image which of course only showed the star field but not the object. Only some recognizable star patterns allowed me to locate the object.
20 hr luminance exposure, BRC-250 and ST-10XME.
http://users.westconnect.com.au/~sjastro/carinadwf.html
Clear skies
Steven