mouse over for annotated version - click for full resolution
Ha OIII RGB rendition of the Crescent Nebula, an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. This is the result of the collision of the recent stellar wind emitted by the star WR136 colliding with the older shell ejected when it became a red giant.
SW Quattro 8S 200mm f/4 with Baader MPCC Mark III corrector
Baader Ha, OIII, R, G, B 36mm
NEQ6 with EQASCOM
SW 70/500 with AlCCD5
RA 20:11:25 DEC 38:25:58 J2000
July August 2021
Astrobioparco di Felizzano, AL, Italy
Ha - 24x900 @-10C bin 1x1 OIII - 36x900 bin 1x1 R - 24x300s bin 2x2 G - 12x300s bin 2x2 B - 26x300s bin 2x2
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.