California Nebula mosaic

[Anne S]

Here is my version of the Californa Nebula imaged in my back garden using an Atik 428 and Altairastro 70mmEDT Starwave refractor. I used Ha and Sii filters, processed as a bicolour image, Ha to red and Sii to blue and green. At two panel mosaic with 10x600s for each filter on each panel. Taken over a couple of nights in April when we had a fortnight of mostly clear skies. I was careful to complete both panel with each filter on the same night. I did try a few Oiii subs but didn't perserver as I would have need a very large number of subs to show anything other than stars!

Stacking and calibration was done with Astropixelprocessor. Further processsing done with Pixinsight.

One of my best images I think.

Anne

[callisto]

And very nice it is 👍

 

Mark.

[Adreneline]

Not sure I've seen an HSS before of this nebula - it reveals a quite different structure to the normal HOO or H(HO)O.

Very interesting - thanks for posting.