furgle
30-07-2018, 11:22 AM
I like seeing images with multiple galaxies in them so here's one I tried myself. I had a hell of a time with gradients on this one, so the background is blotchier than I would like, but the colours didn't seem to suffer.
One problem I seem to be having is keeping the colour, but getting more contrast. A standard contrast curve washed out the colours.
NGC 6902 is the large spiral galaxy to the left, ~36M light years away. IC 4946 is the barred spiral on the left, 133M light years distant. Spiral galaxy ESO 285-5 (NGC 6902B) is 136 million light years distant at the top.
Image:
94x 300s Luminance
46x 300s Red
43x 300s Green
42x 300s Blue
Total integration 18 hours 45 minutes.
Hardware:
GSO carbon fibre RC8
Skywatcher EQ8 Pro mount
QSI 683-ws8 Camera @ -15°C
Astronomik Luminance, Deep Sky RGB filters
Starlight Xpress Lodestar X2 Autoguider
Innovations Foresight On Axis Guider
Starlight Instruments Focus Boss II
One problem I seem to be having is keeping the colour, but getting more contrast. A standard contrast curve washed out the colours.
NGC 6902 is the large spiral galaxy to the left, ~36M light years away. IC 4946 is the barred spiral on the left, 133M light years distant. Spiral galaxy ESO 285-5 (NGC 6902B) is 136 million light years distant at the top.
Image:
94x 300s Luminance
46x 300s Red
43x 300s Green
42x 300s Blue
Total integration 18 hours 45 minutes.
Hardware:
GSO carbon fibre RC8
Skywatcher EQ8 Pro mount
QSI 683-ws8 Camera @ -15°C
Astronomik Luminance, Deep Sky RGB filters
Starlight Xpress Lodestar X2 Autoguider
Innovations Foresight On Axis Guider
Starlight Instruments Focus Boss II