Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Orion Nebula  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1976  ·  NGC 1982  ·  Orion Nebula  ·  The star θ1Ori  ·  The star θ2Ori
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M42 in HOO, 



    
        

            Tom Gray
M42 in HOO
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M42 in HOO

Getting plate-solving status, please wait...
M42 in HOO, 



    
        

            Tom Gray
M42 in HOO
Powered byPixInsight

M42 in HOO

Technical card

Imaging telescopes or lenses: William Optics Zenithstar II 80 ED

Imaging cameras: Meade DSI 3 Pro

Mounts: Meade Fork mount w/wedge Meade

Guiding telescopes or lenses: Meade 8x50mm Finder/Guider

Guiding cameras: Orion Starshoot autoguider

Focal reducers: Meade f3.3 focal reducer/field flattener Meade Focal reducer

Software: SiliconFields / Ivo Jager Startools v1.7  ·  Stark Labs Nebulosity v3  ·  Meade Envisage V4.05

Filters: Optolong L-eNhance 1.25"  ·  Meade LRGB 1.25"

Accessory: Homemade ST4 autoguider


Dates:Dec. 1, 2020

Frames:
Meade LRGB 1.25": 36x60" (36')
Optolong L-eNhance 1.25": 19x120" (38')

Integration: 1h 14'

Avg. Moon age: 15.77 days

Avg. Moon phase: 98.87%


Basic astrometry details

Astrometry.net job: 4083904

RA center: 5h 35' 28"

DEC center: -5° 24' 46"

Pixel scale: 2.419 arcsec/pixel

Orientation: 186.697 degrees

Field radius: 0.532 degrees


Resolution: 1248x977

Locations: Home 'observatory' (Bortle 5), Derbyshire, United Kingdom

Data source: Backyard

Description

This is data that I captured recently with my Zenithstar II 80 ED and have completely reprocessed in Startools v1.7. Using luminance, and red channels, and Ha and OIII ( from my narrowband L-eNhance filter) mapped to green and blue, I have produced this HOO image.

Standard workflow with dual band colour processing, then saturation of the nebula with dimming and tightening of the stars. Vignetting was repaired and some adjustment to stars to reduce colour abberation. Interesting, but not nearly as nice as my previous LRGB image.

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