Antilhue - Chile

M 83 - hi-res
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Image Data

Designation M 83,  NGC 5236,  southern Pinwheel galaxy,  Bennett 63
Object type Type SABc spiral galaxy
Coordinates 13h37m   - 29°52'
Constellation Hydra  (Hya)
Description M 83 is a magnificient object with very well defined spiral arms. It displays a very dynamic appearance, appealing by the red and blue knots tracing the arms. Dark dust lanes follow the spiral structure throughout the disk, and may be traced well into the central region to the nucleus, which is only 20" in diameter and consists of an older yellowish stellar population which dominates the whole central region, and extends along the barlike structure.

A wide field image taken with a 6" refractor is here.

Exposure LRGB 150:60:60:60 min @ -18°C, RGB binned 2x2, all exposures 15 min
Camera SBIG ST-10XE selfguided + CFW8 with Astrodon Tru-Balance LRGB filter set.
Optics RCOS 14.5" Ritchey-Chrétien with AP 0.67X reducer working at f/6.56
Mount Astro-Physics AP1200GTO
Software MaxIm DL/CCD, DeBloomer, Sigma Pre Beta 11, Adobe Photoshop CS
Location - Date - Time San Esteban (Chile) - 15May04 @ 04:00 UTC
Conditions Transparency 6,  Seeing 5-6, Temperature +11°C