NGC3254 with SN2019np

[LongJohn54]

I had a couple of clear nights on 30 and 31 January and captured 10 x 240s of RGB on both nights making four hours data in total.

Processed in Pixinsight with a superbios and 20 darks (240s) plus 20 flats per filter all taken at -10c.
I followed Kayron Mercieca's calibration steps in https://www.lightvortexastronomy.com/tutorials.html
and used Masked Stretch and Colour Calibration to finish.

Any comments and processing advice is welcome as this is my second image in Pixinsight.  I know just enough to know that I don't know anywhere near enough!

[wimvb]

Very nice image, and great SN catch.

One general pointer re processing. If you use masked stretch, make it a habit to use the hsv repair script first. After dbe and colour calibration overexposed stars can have a miscoloured core. This can result in purple or pink stars after stretching. The hsv repair script corrects the core of stars and changes it to the colour of their halo.

Here's a reference

http://pixinsight.com.ar/en/info/processing-examples/28/maskedstretch-stars-sores.html

[MartinB]

Great capture, well done!