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Double Cluster in Perseus
The Double Cluster in Perseus is one of the most famous pairings of open clusters. Open clusters are common, but double open clusters are not. This one is justly famous and looks even better through binoculars than through the scope.
September 2004 CCD image:
|
Date |
2004-09-07 |
|
Scope |
Astro-Physics 130 EDF f/4 on 1200 GTO mount; ST-10XME camera using the internal guide chip. |
|
Exposure |
25 - 1 min frames each RGB, 1x1 binning |
|
Processing |
Calibrated and combined in MaxIm, final processing in Photoshop CS. |
Older film image:
| Date | |
| Scope | Astro-Physics 130 EDF f6 on G-11 mount; ST-4 guiding |
| Exposure | Kodak LE400, 2 at 60 min each |
| Processing | Stacked in RegiStar, stretched in PhotoShop |