Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Nebula in Orion  ·  Horsehead nebula  ·  IC 430  ·  IC 432  ·  IC 434  ·  M 42  ·  M 43  ·  M 78  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  NGC 1990  ·  NGC 1999  ·  NGC 2023  ·  NGC 2024  ·  NGC 2064  ·  NGC 2067  ·  NGC 2068  ·  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 ιOri  ·  The star σOri  ·  And 1 more.
Orion's Belt - Sword, 



    
        

            Stamatis Paraschakis
Orion's Belt - Sword
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Orion's Belt - Sword

Technical card

Imaging telescopes or lenses: Samyang 135mm f/2

Imaging cameras: Canon 600D Baader Mod

Mounts: SkyWatcher HEQ5 PRO

Guiding telescopes or lenses: SkyWatcher Finder/Guider 9x50

Guiding cameras: ZWO ASI120MC

Software: PHD2  ·  BackyardEOS  ·  Pleiades Astrophoto PixInsight

Filters: Hutech IDAS CLIP LPS D1


Dates:Jan. 21, 2017

Frames:
Hutech IDAS CLIP LPS D1: 30x1" ISO800 2C
Hutech IDAS CLIP LPS D1: 30x15" ISO800 2C
Hutech IDAS CLIP LPS D1: 60x150" ISO800 2C

Integration: 2.6 hours

Darks: ~20

Flats: ~60

Bias: ~100

Avg. Moon age: 23.54 days

Avg. Moon phase: 35.40%


Basic astrometry details

Astrometry.net job: 1449391

RA center: 5h 39' 23"

DEC center: -3° 15' 50"

Pixel scale: 3.418 arcsec/pixel

Orientation: 89.600 degrees

Field radius: 5.215 degrees


Resolution: 1824x1190

Locations: Sounion, Athens, Attica, Greece

Description

This is my first image taken with the Samyang 135mm f2 lens, wide open @f2.
I had trouble with focus, the red channel was clearly unfocused, i think f2 and clip in (Hutech idas lps d1) filter isn't a good combination...
Also i think there was flexure between the lens and the camera even though i used a support ring.
The resulting drizzled hdr image was very large (over 1.5gb) and this made processing even harder but i'm happy with the result as long i don't zoom over 100%!

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Orion's Belt - Sword, 



    
        

            Stamatis Paraschakis

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