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NGC 7662 in Andromeda (Blue Snowball)

July 20, 2018

 

NGC 7662 is a planetary nebula in the constellation Andromeda. The exact distance from earth is not currently known. The most recent estimate is 5,600 light years, and a diameter of 50,000 AU (Wikipedia). As tiny as it appears in this view, it is in fact tens of thousands of times larger than our solar system!

 

Technical specs:

 

Optics: AT12 RC astrograph @ f/8
Camera: QHY9M CCD
Filters: Orion 2'' LRGB
Mount: AP900 GTO
Guider: Meade DSI Pro II

Focus: Robofocus
Software: CCD Commander, Maxim DL, FocusMax, Photoshop CC 2014, Pixinsight 1.8

Date: RGB: 9/27,28 2016 L: 10/4,5 2016
Exposure: Lum: 12x300'' bin1 RGB: 12x300''each bin1
Total integration: HDR composite, 4 hours


Click image for larger image and prints

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