An obscure one in Perseus. The larger is open cluster inside an emission nebula NGC 1624, also known as emission nebula Sh2-212, the smaller Sh2-211. Now known as the Tribble Nebulae after “Star Trek: The Trouble with Tribbles”. The dark patch top right is the dark nebula Barnard 20.
The Tribble Nebulae NGC1624/Sh2-212 and Sh2-211 Dark nebula Barnard 20
First real narrowband image. Strange reflections of the primary, secondary and spider in Ha and OIII images, as well as flats. Mappings were OHS and HOS. SII didn’t add much to either image but object is strong in Ha and OIII.
B33 in IC343
250mm f4.8 Newtonian MPCC Guided PHD2
Atik 460EX Baader Ha, OIII, SII filters
15x200s 2×2 each filter 15 each of darks, flats, bias
Nebulosity and Photoshop Colour mapping: OHS: OIII, Ha, SII HOS: Ha, OIII, SII.