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The Pleiades, M45, in Taurus
The Pleiades, or Seven Sisters, have been known as an important asterism to every civilization in every era. The blue haze results from the reflection of starlight from the dust surrounding the hot stars.
CCD September 2004
|
Date |
2004-09-14 |
|
Scope |
Astro-Physics 130 f/6 EDF at f/4 on 1200 GTO mount. A set of vanes was placed in the dew hood to create the diffraction spikes. Camera: SBIG ST-10XME. |
|
Exposure |
20 frames at 1 min each RGB with Astrodon filters. |
|
Processing |
Calibrated and combined in MaxIm 4, final processing in PhotoShop |
Film January 2001
This image is passable: the blue nebulosity around and below Merope (lower left corner of the quadrangle) is beginning to show up. Considerable stretching was needed.
| Date | 2001 January 14 |
| Scope | Astro-Physics 130 EDF f4.5 with field flattener on G-11 mount |
| Exposure | Kodak PPF-2, 1 @ 20 min with Tokai filter; 1 @ 20 min without filter |
| Processing | Registered in RegiStar, stacked and stretched in PhotoShop |