[mswhin63 (Malcolm)]

Hi All,

Have been waiting for good breaks in the weather which usually means staying out on a work night. I have a really good image taken about 10 years ago but lost all the data.

I have a stacked NGC 5139 but the yellow stars appear a bit too orange. What would be the best way to change this without affecting other colours. Otherwise not a bad image.

100 x Lights
100 x Darks (maybe too many)
20 Flats
20 Biases

Stacked, Drizzled and colour corrected using SiriL
Simple post-processing simple using GIMP and
Noise reduction using Darktable.

Equipment:
TS 480/80 Triplet
Canon 450D unmodified
APT, PHD2, guide camera webcam.
HEQ5