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NGC6888 Crescent Nebula Crescent nebula and starfield showing some of the faint nebulosity around it. The Nebula has been produced by the Wolf-Rayet star in the center of the nebula. 20 * 300s unguided with the Sky90 + F/4.5 reducer/flattener and CCDT67 telecompressor stacked giving a combined focal ratio of f/3. No Bias/ Flat or Darks. Comments : Focussing was a pig ! Link-words: Nebula

NGC6888 Crescent Nebula

Crescent nebula and starfield showing some of the faint nebulosity around it. The Nebula has been produced by the Wolf-Rayet star in the center of the nebula.

20 * 300s unguided with the Sky90 + F/4.5 reducer/flattener and CCDT67 telecompressor stacked giving a combined focal ratio of f/3. No Bias/ Flat or Darks.

Comments : Focussing was a pig !
Rate this file (Current rating : 1.7 / 5 with 3 votes)
File information
Filename:NGC6888_ddp_PS3.jpg
Album name:RobertM / Nebulae
Rating (3 votes):22222
Link-words:Nebula
Image date, time and location:29th July 2008
Telescope aperture and focal ratio:Sky 90 operating at approx f/4.5
Camera and filters used:SXV-H9 and Astronomik 13nm Ha filter
Processing applied:Stacked in MaximDL and levels/curves +very slight sharpening and 0.2 blur applied in PS
Filesize:1042 KiB
Date added:Jul 30, 2008
Dimensions:1392 x 1040 pixels
Displayed:240 times
URL:http://gallery.orpington-astronomy.org.uk/displayimage-558-_NGC6888_Crescent_Nebula_.html
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