Hi all
Here is an image of an object less often imaged- an island of blue surrounded by a sea of stars
The few images of this object on the internet that I have seen are all in broadband. However while looking at the broadband data I suspected there was quite a bit of H alpha emission in the area
-too faint to be picked up by a one shot colour camera.
So I went back and collected another three and a half hours of data in the Hydrogen Alpha wavelength.
Quite chuffed to find that my suspicion was right and there was plenty to find in that wavelength, including the Planetary Nebula -bottom left in the image -PN A66 45.
For the larger version please visit
https://flic.kr/p/2qizk6S
( with all details)
Thanks for looking!