2008-05-28, Luminance
Image data
| Photographer: | Jürgen Stöger |
| Optics: | Celestron 11 @ f/8 (main) Orion ED 80 (guide) |
| Mount: | Fornax 51 |
| Cameras: | Atik16HR (main) Starlight SXV-M7 (guide) |
| Exposure: | Lum=65 minutes |
| Conditions: | hazy sky, very low transparency through dusty and bright night during visit of Viktor and Christian |
| Moon: | Moon below horizon |
| Location: | Katzelsdorf |
| Date: | 28 May 2008 |
| Remarks: | image processing together with Stefan |
M 51 object information
RA: 13h29m53s
Dec: +47° 11′ 43″
Size: 10.8 x 6.6 ‘
App.mag.: 8.4 mag
Distance: 23 million light years
Dec: +47° 11′ 43″
Size: 10.8 x 6.6 ‘
App.mag.: 8.4 mag
Distance: 23 million light years
The Whirlpool Galaxy, also known as Messier 51a, M51a, and NGC 5194, is an interactinggrand-designspiral galaxy with a Seyfert 2active galactic nucleus. It lies in the constellation Canes Venatici, and was the first galaxy to be classified as a spiral galaxy. Its distance is estimated to be between 15 and 35 million light-years.