Abell 2 (PN A66 2, PN G122.1-04.9, PK 122-04.1) Planetary Nebula in Cassiopeia. Taken Oct. 27, 28,
Nov. 03 and Nov. 04 2021. Imaged with Starlight Xpress’ SX-825 camera and a Celestron EdgeHD 9.25 at
f10, on a Losmandy G11/Gemini mount. The H alpha and OIII subframes were 12 mintues binned 1x1,
while the RGB subframes were 4 minutes binned 2x2, resulting in the following total exposures L:R:G:B
= (HA+OIII): (R+Ha):(G+OIII):(B+OIII) (min) = (276+ 276):(64+276):(64+276):(64+276). Captured with
Nebulosity, calibrated, sigma combined in Iris with other processing using PixInsight LE and
Photoshop CS. North is up.