[back] NGC 2997 in Antlia [NED]


Type: SBc




(c) 2004 All astro photo images are copyrighted. They may not be used or reproduced without explicit written permission from the authors.

About this Image / Über dieses Bild

Image Type, Orientation: LRGB Composite, North is at 11:00h
Exposure time: L: 12x300 sec. 1x1 bin, R,G,B: 4x300 sec.3x3 bin
Exposure date: May 23ed, 2004
Location: Capella Observatory at Amani Lodge, Kupferberg near Windhoek, Namibia
Filter: FR03 + Astronomik
Typ II LRGB filters
Instrument: Ganymed 60cm-Hypergraph in secondary focus, f=4800 mm
Seeing (FWHM): 1.8"-1.9"
Photographer: Rainer Sparenberg, Stefan Binnewies, Volker Robering

The spiral structure in NGC 2997 is of the grand design type, the same as in M 91, but with much more brightness. The inner disk is covered with two dust lanes, silhouetted against the central part of the galaxy, which shows a high surface brightness. Many HII-regions exist in the two luminous arms.
Image processed with CCDSharp.




Die Spiralarme in NGC 2997 sind vom Grand Design Typ, wie bei M 91, aber mit höherer
Oberflächenhelligkeit. Zentral beginnen zwei Staubbänder, die sich gut vom hellen Kerngebiet abheben.
Viele rote HII-Regionen liegen in den hellsten Partien der beiden Galaxienarme.
Das Bild wurde mit Hilfe von CCDSharp bearbeitet.

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