Michael A. Stecker
mastecker@gmail.com

 


 
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M42 "Orion Nebula" and NGC 1977
The red Orion Nebula (M42) and blue NGC 1977 reflection nebula is seen here photographed with an Askar 103 APO triplet refractor and its 0.8X focal reducer through an Optolong L-Pro anti-light pollution filter and ZWO ASI2600MC Duo camera.
file: M42&NGC1977-180sX56P2 AskarF5d5LproASI2600Duo172023clr_GX-1.jpg

Photographic Data
 telescope:
Askar 103 APO triplet refractor with 0.8X focal reducer
Aperture: 103 mm (4-inch)
Focal ratio: f/5.5
Focal Length: 560 mm
Full frame image
 
mount:
ZWO AM5 harmonic mount

 imaging camera:
ZWO ASI2600MC Duo color astro-camera
Full frame image

filter:
Optolong L-Pro (anti-light pollution) filter

exposure:
180 sec X 56 (168 minutes, 2.8 hours)
guiding:
SVBony 60 mm f/4 guide scopr (FL= 240 mm) with ZWO ASI662MC guide camera
 
processing software:
Asiair, Photoshop Elements 2021, GraXpert gradient reduction software
 .
photographic site:
West Los Angeles California
(Bortle 9 light polluted sky)