Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888
NGC6888 - The Crescent Nebula - Hα, Derryk
NGC6888 - The Crescent Nebula - Hα
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NGC6888 - The Crescent Nebula - Hα

NGC6888 - The Crescent Nebula - Hα, Derryk
NGC6888 - The Crescent Nebula - Hα
Powered byPixInsight

NGC6888 - The Crescent Nebula - Hα

Equipment

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Acquisition details

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Description

Also known as Sharpless 105, the Crescent Nebula, an emission nebula, lies in the constellation Cygnus at a distance of 5,000 light-years away. The Wolf-Rayet star’s (WR 136) fast stellar winds formed the structures of the nebula.



Taken in June & July 2018 over multiple nights from Campbell, CA, USA. Sky: 18.80 mag/arcsec^2



Total integration: 1365 mins (22 hr 45 mins)



Details, Equipment, & Software:

Telescope: Astro-Tech AT10RCT (FL2000mm f/8)

Camera: SBIG STF-8300m (-10°C)

Filter: Astrodon 36mm Hα 5nm

Guide: OAG-8300 with QHY5III174

Focuser: Moonlite CSL w/ high res stepper motor

Mount: Astro-Physics AP1100GTO

Capture: Sequence Generator Pro

Frames: Astrodon Hα: 91x900s

Stacking/Final Processing: Pixinsight

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NGC6888 - The Crescent Nebula - Hα, Derryk