AAO image reference AAT 17a. « Previous || Next »
Top left is NE. Image width is about 24 arc min
Image and text 1999-2002, © Anglo-Australian Observatory, photograph by David Malin.
NGC 2997 is a fine southern spiral galaxy at a distance of about 45 million light years. It is inclined at about 45 degrees to our line of sight, revealing its internal structure and giving the galaxy an oval appearance. Seen face-on, NGC 2997 would look rather like Messier 83. Like most spirals, the galaxy has two prominent spiral arms, which appear to originate in the yellow nucleus, are peppered with bright red blobs of ionised hydrogen which are similar to regions of star formation in our own Milky Way. Within these gas clouds are produced the hot blue stars which generate most of the light in the arms of the galaxy. A much older population of yellowish stars are concentrated around the nucleus. This wide angle view emphasises that this beautiful galaxy is seen through the stars of our own galaxy, the Milky Way. A much deeper image shows that the galaxy is much bigger than it appears above.
Entry from NGC 2000.0 (R.W. Sinnott, Ed.) © Sky Publishing Corporation, 1988:
NGC 2997 Gx 09 45.6 -31 11 s Ant 8.1 11. p ! vF, vL, vgvsbMN 4", 19s .5 dRelated Image
AAT 17 A spiral galaxy in Antlia, NGC 2997
n2997_d NGC 2997, deep image
More data about this galaxy is accessible from the hotlinked NGC name and is reproduced
with permission from the NASA/IPAC Extragalactic Database (NED).
For other details of photographic exposure, search technical table by AAT reference number.