Delphinus constelation

Posted: Jul 27th, 2026

Technical Info

Telescope/Lens: Samyang 14/2.8

Camera: SvBony SV705C

Mount: Fixed tripod

Software: SharpCam + Siril + Perl Scripts + Siril

Exposure:

1200 x 2.5" ISO/Gain: 252

Liptovský Ján, Slovakia

Jul 21st, 2026

50 m

Resolution: 1778x813 px

Scale: 7861 KB

1200 Frames, 2,5s exposure, ISO 252, black level 10
50 Darks, after session
Siril: Calibration Lights - master Darks
Perl script with astromio: Background reduction: 15 sigma for stars, 28x28 tiles with 2.5 sigma rejection for tiles with Milky Way, 2nd grade polynomial model
manuall plate solving (x,y pixel to RA/DEC) for first frame
Perl script with astromio: for elimination of barell distorsion of lens and the distorision of stars moving before fixed tripod
Siril: Registration
Siril: Stacking with rejection, additive
Siril: Color calibration (Altair is white)
Siril: Remove green noise
Siril: Histogram transformation

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