Getting plate-solving status, please wait...
M31 (Andromeda Galaxy) in Hydrogen-Alpha no stars, Derek Spratt

M31 (Andromeda Galaxy) in Hydrogen-Alpha no stars

Getting plate-solving status, please wait...
M31 (Andromeda Galaxy) in Hydrogen-Alpha no stars, Derek Spratt

M31 (Andromeda Galaxy) in Hydrogen-Alpha no stars

Equipment

Loading...

Acquisition details

Loading...

Description

Bortle 2 skies - I revisited my M31 raw data after working on M33 in Ha and LRGB on 2 different scopes, realizing that a comparison between M31 and M33 in Ha is well worthwhile. 

M33 is really interesting in Ha alone - some intense lumpy regions where active star forming is ocurring. This got me to revisit my M31 Ha data and publish an Ha only version to compare our 2 closest large galaxies - they couldn't be more different ...

M33 in Ha with stars:  https://www.astrobin.com/418i2y/
M33 in Ha no stars: https://www.astrobin.com/b9cmu5/B/
M31 in Ha with stars: https://www.astrobin.com/acz076/
M31 in Ha no stars: https://www.astrobin.com/5lgtk9/

M33 mosaic using a CDK17: https://www.astrobin.com/y6h9xx/B/

Comments

Histogram

M31 (Andromeda Galaxy) in Hydrogen-Alpha no stars, Derek Spratt