Contains:  Extremely wide field
Scorpius, Sagittarius and Saturn, alexastro

Scorpius, Sagittarius and Saturn

Equipment

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Acquisition details

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Description

Scorpius constellation, including Sagittarius.

Taken during 2015 trip in Nambia.

First CCD LHaRVB treatment !

Samyang 35mm is a very good lens, but there is a high vignetting in 2 corners... :-(

Difficulty to merge Ha and L channel for luminance as Ha was in binning 2x2...

1st version :

1st treatment made in wrong way

RGB combination then LRGB then Ha-RGB (with LRGB) => bad definition as Ha is in binning 2x2

2st version :

add cosmetic correction to remove the bad line.

RGB combination, then Ha-RGB (all in bin2x2).

then a Ha-L layer (difficult to produce as not the same binning) used as L for L-RGB combination

Saturn is not "photoshoped" so you can see that the planet has moved between two integration period (1-day)

Comments

Revisions

  • Scorpius, Sagittarius and Saturn, alexastro
    Original
  • Scorpius, Sagittarius and Saturn, alexastro
    B
  • Scorpius, Sagittarius and Saturn, alexastro
    C
  • Final
    Scorpius, Sagittarius and Saturn, alexastro
    D

Histogram

Scorpius, Sagittarius and Saturn, alexastro