 |
Open clusters in Cancer
|
Click on image for a larger view
Open clusters in Cancer
|
|
M67 is one of the oldest known open clusters, and by far the oldest of Messier's open clusters, being aged at 3.2 billion years in the Star Catalog 2000.
Only few known open clusters were found to be older, among them probably NGC 188 at about 5 billion years. NGC 2678 at the bottom left is an open cluster, very little compressed, sparse in stars, seldom photographed. More informations are available at the wikipedia.org website |
|
|
| Optics |
130 mm f/6.2 Astro-Physics EDF Refractor |
| Mount |
Astro-Physics AP 900GTO |
| Camera | SBIG ST-10XE. |
| Filters | SBIG CFW8A.With Astrodon LRGB Ha filters |
| Focuser | Robofocus focuser and Focusmax software |
| Dates | February 2007. |
| Location | Lentin Observatory |
| Exposure | LRGB = 105:36:39:42 minutes.. L bin1, RGB bin2. Scale 1.69^s/pixel |
| Acquisition | Image data acquired remotely using ACP4 Observatory control software., MaxIm DL 4 |
| Processing | MaxIm DL 4, Photoshop CS2, Registar, |
All content are
copyright Antoine Vergara