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Sh2-261 also known as Lower's nebula is an emission nebula in Orion's constellation. It's an Ha region located on the outer part of the Orion's Arm, close to the limit of this arm and the Perseus' Arm. The distance to the solar system is estimated in 3260 l.y. [Wiki]
SW Quattro 8S 200mm f/4 with Baader MPCC Mark III corrector
Baader Ha, OIII, SII, R, G, B 36mm
NEQ6 with EQASCOM
SW 70/500 with AlCCD5
RA 06:09:01 DEC 15:45:02 J2000
December, January 2023
Astrobioparco di Felizzano, AL, Italy
Ha - 40x900 bin 1x1 @-10C OIII - 40x600s bin 2x2 SII - 40x600s bin 2x2 R - 12x300s bin 1x1 G - 12x300s bin 1x1 B - 12x300s bin 1x1
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