Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  NGC 2024, Horsehead nebula, IC 434, NGC 1990, M 42, Great Nebula in Orion, NGC 1976, Witch Head nebula, IC 2118, The star ηOri, The star ιOri, The star Cursa (βEri), The star Mintaka (δOri), The star Saiph (κOri), The star Alnitak (ζOri), The star Alnilam (εOri), The star Bellatrix (γOri), The star Betelgeuse (αOri), The star Rigel (βOri), Part of the constellation Orion (Ori), Part of the constellation Lepus (Lep), Part of the constellation Monoceros (Mon), Part of the constellation Eridanus (Eri)
Getting plate-solving status, please wait...


Technical card

Imaging telescope or lens:Sigma 180mm/F2.8 APO

Imaging camera:Nikon D800 Mod

Mount:iOptron CEM60-EC

Software:Photoshop CCAuriga Imaging RegiStarPixInsight

Resolution: 6000x9200

Dates:Feb. 17, 2018

Frames: 416x180" ISO800

Integration: 20.8 hours

Avg. Moon age: 1.52 days

Avg. Moon phase: 2.60%

Bortle Dark-Sky Scale: 2.00 job: 1998383

RA center: 5h 37' 42"

DEC center: +0° 51' 0"

Pixel scale: 13.750 arcsec/pixel

Orientation: 353.236 degrees

Field radius: 20.977

Locations: Mt. Shiao-Shuei (Taiwan), Taichung, Taiwan; Mt. Ho-Huan (Taiwan), Taichung, Taiwan

Data source: Traveller


This is a 9-frame mosaic, taken in six nights from Dec 2016 to Feb 2018.

Ver.A (the final) is a version with stronger contrast stretch to bring out the faint nebulas. Ver.B is a standard version with a more natural look.

The original image has 345 mega pixels. Here I upload the 40% reduced versions, for the sake of file size. Later I will probably upload a larger image to Gigapan or somewhere else.



Wei-Hao Wang
License: None (All rights reserved)


Sky plot

Sky plot




            Wei-Hao Wang