Sharpless 101 (Sh2-101) is a HII region emission nebula located in the constellation Cygnus. It is sometimes also called the Tulip Nebula because it appears to resemble the outline of a tulip when imaged photographically. It was catalogued by astronomer Stewart Sharpless in his 1959 catalog of nebulae. It lies at a distance of about 6,000 light-years from Earth.
Prospectically is in close proximity to microquasar Cygnus X-1 (abbreviated Cyg X-1), a galactic X-ray source in the constellation Cygnus, and the first such source widely accepted to be a black hole.
It was discovered in 1964 during a rocket flight and is one of the strongest X-ray sources seen from Earth. [Wiki]
HOO rendition with little RGB star colors. |
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| Optic |
SW Quattro 8S 200mm f/4 with Baader MPCC Mark III corrector |
| Camera |
Atik 383L+ |
| Filters |
Baader Ha, OIII, R, G, B, 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 20:00:18 DEC 35:20:45 J2000
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Date
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June 2020
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Site
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Astrobioparco di Felizzano, AL, Italy
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| Exposures
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Ha, Oiii - 24x900s @-10C bin 1x1 each
R,G,B 12x60s each for the star colors
Integration time - 12h
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