Antilhue - Chile

NGC 3923 in Hydra
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Image Data

Designation NGC 3923,  Bennett 49
Object type Elliptical galaxy
Coordinates 11 h 51 min    - 28° 48'   (Hya)
Description NGC 3923  is described as bright (mag 10.5),  fairly large (5.9'x3.9'),  little extended, gradually much brighter toward the middle and "resolvable," meaning a 12" telescope may show mottling under good conditions.  The image shows an interesting dark area towards the upper right (east) of the nucleus.

The field of view is 15 x 10 arcminutes with north towards the lower right.

Exposure LRGB 60:20:20:20 min @ -15°C ;  L exposures 15 min, RGB exposures 5 min, all unbinned
Camera SBIG ST-10XE with Astrodon filterset  -  selfguided
Optics RCOS 14.5" Ritchey-Chrétien @ f/9 (prime focus)
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD, Sigma Pre Beta, Registar, Adobe Photoshop CS
Location - Date - Time San Esteban (Chile) - 04Apr2005 @ 04:00 UTC
Conditions Transparency 7-8,  Seeing 6, Temperature  + 14°C