IC 1318 or Gamma Cygni Nebula in HST* Palette (Kirk)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: IC 4996 · NGC 6910 · The star 34Cyg · The star 40Cyg · The star Sadr (γCyg)

IC 1318 or Gamma Cygni Nebula in HST* Palette, Kirk

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IC 1318 or Gamma Cygni Nebula in HST* Palette

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IC 1318 or Gamma Cygni Nebula in HST* Palette

Located in the Orion arm of the Milky Way Galaxy and found in the constellation Cygnus is IC1318A, IC1318B and IC1318C or the Gamma Cygni Nebula an enormous emission nebula back dropping the star Gamma Cygni or Sadr seen in the center of this photo. The nebula is approximately 3700 light years distant. Sadr or Gamma Cygni at 1800 light years is a 2.23 magnitude giant yellow-white F-type star 12 times the mass of our sun and emitting over 33,000 times as much energy.

*HST palette is accomplished by combining sub frames using three narrowband filters that capture light produced by glowing hydrogen (Ha), oxygen (OIII) and sulfur (SII) present in the nebula. Green is assigned to hydrogen, blue to oxygen and red to the sulfur.

Acquisition Date: Between 9/11/2012 and 9/21/2012

Camera: SBIG ST8300M @ -12°C

Telescope: Canon 200mm F2.8 L ULTRASONIC Lens

Mount: Losmandy G11 with Gemini II

Guidescope: ATLE80 80mm at f/4.8

Guide Camera: Orion SSAG with Televue TRF2008 0.8x reducer

Filters:

-Hydrogen Alpha (Ha): 15 x 15min (225min)

-Oxygen III (OIII): 12 x 15min (180min)

-Sulfur II (SII): 12 x 20min (240min)

Total Exposure: 645min (10.75 hours)

Limiting Magnitude: 5.1

Comments:

Processed in Pixinsight 1.7 and Adobe Photoshop CS5

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Status	Basic success
Started	...
Astrometry.net job	3526088
PixInsight job	n/a
PixInsight queue size	n/a
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IC 1318 or Gamma Cygni Nebula in HST* Palette

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