Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda Galaxy  ·  HD3431  ·  HD3765  ·  HD3827  ·  HD3969  ·  HD4143  ·  HD4174  ·  HD4322  ·  HD4501  ·  HD4669  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 206  ·  NGC 221  ·  NGC 224
Getting plate-solving status, please wait...
M31 in HaLRGB, Ollie Aplin
Powered byPixInsight

M31 in HaLRGB

Getting plate-solving status, please wait...
M31 in HaLRGB, Ollie Aplin
Powered byPixInsight

M31 in HaLRGB

Equipment

Loading...

Acquisition details

Loading...

Description

I found this so HARD!  Many times I'd try to tackle this data before binning it all and starting again...  Gradually over time I picked up a few new techniques and PI skills, not to mention the suite of a certain Russell Croman which helped enormously :p

I also learnt that 300s Lum subs with an f4 refractor on a target as bright as M31 is asking for trouble...  I captured 6.5h of 300s luminance data which I didn't use in the final output at all, instead opting to use some 30s Lum subs I took on a whim just in case!  Gives me something to try again at some point I suppose...

Shout out to Bill Blanshan and his fantastic maths for integrating Ha into this image.

Comments

Sky plot

Sky plot

Histogram

M31 in HaLRGB, Ollie Aplin