Post-lockdown Iris

fsimeone

Active member
Jan 23, 2010
40
3
56
Italy
Here's my attempt at NGC7023 with an Artec 250 Newtonian:

https://flic.kr/p/2jq7aTF
Acquisition data are reported in the image notes.

The only notable processing issue has been the control of a rather strong magenta hue in the lower-left portion of the image.
Did any other astrophotographers in this group have the same experience with this object?
Acquisition took place under dark skies and all images have been flat-corrected, so I tend to exclude gradients induced by light pollution...

For the rest, more or less standard processing:
- calibration, registration, integration
- deconvolution (L)
- RGB composition
- photometric color calibration (G2V reference)
- LRGB
- masked Local Histogram Equalization
- masked morphological transformation (slight star reduction)
- masked color saturation
- TGV denoise
- masked unsharp mask.
- curves transformation tweak

Thanks for any comments!

All the best,

Flavio