NGC 6820 is a small reflection nebula near the open cluster NGC 6823 in Vulpecula. The reflection nebula and cluster are embedded in a large faint emission nebula called Sh 2-86. The whole area of nebulosity is often referred to as NGC 6820.
Open star cluster NGC 6823 is about 50 light-years across and lies about 6,000 light-years away.
The center of the cluster formed about two million years ago and is dominated in brightness by a host of bright young blue stars. Outer parts of the cluster contain even younger stars. It forms the core of the Vulpecula OB1 stellar association. [Wiki] |
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| Optic |
SW Quattro 8S 200mm f/4 with Baader MPCC Mark III corrector |
| Camera |
Atik 383L+ |
| Filters |
Baader Ha, SII, OIII 36mm |
| Mount |
NEQ6 with EQASCOM
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Guide
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SW 70/500 with AlCCD5
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Frame center
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RA 19:43:17 DEC 23:15:21 J2000
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Date
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July 2021
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Site
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Astrobioparco di Felizzano, AL, Italy
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| Exposures
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Ha - 20x900 @-10C bin 1x1
SII - 30x600 bin 2x2
OIII - 25x600 bin 2x2
Integration time - 14h10m
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