Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
Flying Bat (Sh-2 129) and Squid Nebula (Ou4), Marc Schuh
Flying Bat (Sh-2 129) and Squid Nebula (Ou4)
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Flying Bat (Sh-2 129) and Squid Nebula (Ou4)

Flying Bat (Sh-2 129) and Squid Nebula (Ou4), Marc Schuh
Flying Bat (Sh-2 129) and Squid Nebula (Ou4)
Powered byPixInsight

Flying Bat (Sh-2 129) and Squid Nebula (Ou4)

Equipment

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Acquisition details

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Description

My longest integration so far and first light for my small TS 70/420 mm triplet. Oiii on this object is very faint, not even barely visible on a single 300" exposure.+

Dates:

Ha: 2020-07-13, 2020-07-20, 2020-08-07

Oiii: 2020-08-20, 2020-08-21

Editing workflow:

Ha:

Crop, DBE, Decon (deringing and pixmath), Denoise (TGV+MMT), MaskedStretch, HT, LHE, Curves, MLT (sharpening and NR), ACDNR

Oiii:

DBE, Decon (Deringing and PM repair), TGVDenoise, HT, LHE, ACDNR, LHE

Combination:

For the color:

Combine Ha and Oiii with:

R: Ha

G: ((Oiii*Ha)^~(Oiii*Ha))*Ha + ~((Oiii*Ha)^~(Oiii*Ha))*Oiii

B: Oiii

For the detail:

Create syn lum with max(Oiii, Ha)

LRGBCombination of the both

Crop out bad non overlapping edges, Curves, EZStarReduction (A. Block Method), MLT (NR), ACDNR, Curves

Downscale to a reasonable size.

Comments

Sky plot

Sky plot

Histogram

Flying Bat (Sh-2 129) and Squid Nebula (Ou4), Marc Schuh

In these public groups

/r/astrophotography