Abell 21 --- PK 205+14.1
Medusa nebula
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| Telescope: C-11 SCT F/6.3 | Guiding:400 mm Telephoto lens -- PHD guiding |
| Camera: SXV H-9 | Exposure time: -Ha532'---Ha532'-G25'- B25' |
| Mount: EQ6 pro | Date: 05 / 02 / 2011 |
| Filter Wheel: S-X filter wheel | Location: Athens ''ZHN'' observatory |
| Filters: Astronomik L Ha RGB filters | Object location: RA: 07h 29m Dec: 12* 15' |
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| Telescope: 70 mm F/7.1 | Guiding:C-11 SCT - PHD Guiding |
| Camera: SXV H-9 | Exposure time: Ha 120' -- Ha 40'-G 08'-B08' |
| Mount: Ultima | Date: 30/11/2006 |
| Filter Wheel: Atik manual filter wheel | Location: Athens ''ZHN'' observatory |
| Filters: Astronomik L Ha RGB filters | Object location: RA: 07h 29m Dec: 12* 15' |