NGC 6820 in Ha | ||
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| Description: | This is an exceedingly dim area of hydrogen gas that was discovered in 1864. The brighter central area is known as NGC 6820 (or Sh2-86). It surrounds an open cluster known as NGC 6823. A full-sized crop of the central area shows the 'elephant trunk' structures pointing toward the open cluster. | |
| Constellation: | Vulpecula | |
| Date: | 8, 24, 29, 30 may 2007 | |
| Equipment: | AP 130, STL11000, Mach1 GTO | |
| Exposure: | Ha: 14.5 hours (6nm Astrodon) | |