Contains: IC 435, NGC 2024, NGC 2023, Horsehead nebula, IC 434, The star Alnitak (ζOri), The star σOri
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The Horsehead and Flame Nebula in narrowband image

Technical card

Resolution: 2014x1500

Dates: Nov. 4, 2017

Frames: 64x900"

Integration: 16.0 hours

Avg. Moon age: 15.07 days

Avg. Moon phase: 99.89%

Astrometry.net job: 1815366

RA center: 85.235 degrees

DEC center: -2.456 degrees

Pixel scale: 2.521 arcsec/pixel

Orientation: 43.600 degrees

Field radius: 0.879 degrees

Description

Color created by mapping the SII, Ha and OIII data respectively to the R, G and B channels (called "Hubble" Colors). I make diffraction spikes around some stars using "StarSpikes Pro 2" plugin in Photoshop. Over 16 hours of exposure time on more than 4 different nights contributed to this final picture below. This is the first time I used QHY163M camera on my Sharpstar 107 F6.5 telescope. This camera always produces very impressive results, thanks to extremely low noise, very high quantum efficiency and precise chip-cooling control.

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Trần Hạ
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The Horsehead and Flame Nebula in narrowband image, Trần Hạ