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Contains:  Great Nebula in Orion, Horsehead nebula, IC 430, IC 434, M 42, M 43, NGC 1975, NGC 1976, NGC 1977, NGC 1980, NGC 1981, NGC 1982, NGC 1990, NGC 1999, NGC 2023, NGC 2024, Part of the constellation Orion (Ori), The star 31Ori, The star 42Ori, The star 49Ori, The star Alnilam (εOri), The star Alnitak (ζOri), The star Mintaka (δOri), The star ηOri, The star ιOri, The star σOri
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Orion 85mm, 


            Mike Miller
Orion 85mm
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Orion 85mm

Technical card

Dates:March 4, 2018

Frames: 30x60"

Integration: 0.5 hours

Avg. Moon age: 17.41 days

Avg. Moon phase: 92.32%

Basic astrometry details job: 1953150

RA center: 5h 36' 12"

DEC center: -3° 17' 52"

Pixel scale: 25.296 arcsec/pixel

Orientation: 313.163 degrees

Field radius: 5.399 degrees

Resolution: 1200x960

Locations: Home, Pittsburgh, Pennsylvania, United States

Data source: Traveller


A test shot from my new Rokinon 85mm f/1.2 lens (at f/1.4).

The full size image has a ton of artifacts because I don't have the spacing quite perfect. Scaled down it looks pretty good. I am in love with the huge pile of light this lens collections and the very wide field with the very tiny chip on the 490ex.

I think long term I may get an ASI1600 and a filter wheel to do shots like this. ZWO makes an adapter for their camera+filter wheel combination that gets the spacing correct.

Seeing was pretty bad in this direction, the light pollution put in a pretty decent gradient.

No flats were applied (yet).

30x 60s frames



Mike Miller
License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


Orion 85mm, 


            Mike Miller

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