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I agreeImaging telescopes or lenses:Takahashi FSQ-106 ED
Imaging cameras:Starlight Xpress SX-814 Trius Monochrome CCD
Mounts:Sky-Watcher EZ-EQ6 GT
Guiding cameras:Starlight-XPress Lodestar Autoguider
Software:Main Sequence Software Sequence Generator Pro , Photoshop CS6 , PIXINSIGHT 1.8
Filters:Ha 3nm , Red , Green , Blue
Accessory:Lakeside Astro Motor Focus System , Starlight Xpress SX 'Maxi wheel' , Starlight Instruments FTF3545B-A Focuser
Dates:Nov. 18, 2017
Frames:
Blue: 18x60" bin 1x1
Green: 18x60" bin 1x1
Ha 3nm: 40x1800" bin 1x1
Red: 15x60" bin 1x1
Integration: 20.9 hours
Avg. Moon age: 0.01 days
Avg. Moon phase: 0.00%
Mean SQM: 18.50
Astrometry.net job: 1854031
RA center: 2h 20' 23"
DEC center: +57° 8' 20"
Pixel scale: 1.435 arcsec/pixel
Orientation: 0.123 degrees
Field radius: 0.869 degrees
Resolution: 3373x2762
Locations: The Hills Observatory, Manchester, United Kingdom
Data source: Backyard
Initially a very quick image, all 60sec subs taken on one night (26 Aug 2017). Processed in PixInsight using the new PhotometricColorCalibration (PCC) process. Then finished off in PhotoShop.
This is another in my series of star clusters showing Ha regions not normally seen. This is a basic RGB image taken in about an hour. Then another 20 hours of Ha data taken as 40 x 1800s subs bin 1x1. The Ha is then added as a tonemap, (i.e. stars removed)
This Ha nebula is extremely faint requiring lots of integration.
The other cluster images with Ha I have published here on Astrobin are NGC 7789 & M39.
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