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.
M42 and Horse Head Nebula, 



    
        

            Wei-Hao Wang
M42 and Horse Head Nebula
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Technical card

Imaging telescopes or lenses: Vixen VSD100F3.8

Imaging cameras: Nikon D800 Mod

Mounts: iOptron CEM60-EC

Software: PixInsight  ·  RegiStar  ·  Photoshop CC


Dates:Feb. 11, 2015Feb. 15, 2015

Frames: 55x240" ISO800

Integration: 3.7 hours

Avg. Moon age: 23.54 days

Avg. Moon phase: 36.69%

Bortle Dark-Sky Scale: 1.00

Temperature: 5.50


Basic astrometry details

Astrometry.net job: 3262921

RA center: 5h 38' 44"

DEC center: -3° 46' 51"

Pixel scale: 5.324 arcsec/pixel

Orientation: 359.857 degrees

Field radius: 5.099 degrees


Resolution: 3650x5850

Locations: Maunakea Visitor Information Station, Hilo, Hawaii, United States

Data source: Traveller

Description

This is a 3-frame mosaic, but the three frames are not evenly overlapped. Each frame contains roughly 19 4-min exposures. There is an addition frame at the belt region with 6 4-min exposures, which doesn't add too much S/N. The original image has 86 mega pixels. The full resolution image uploaded here is a 50% reduction. Remember to click into it and see the details. Enjoy.

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M42 and Horse Head Nebula, 



    
        

            Wei-Hao Wang

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