Imaging telescope or lens:Takahashi FSQ-106 ED
Imaging camera:Starlight Xpress SX-814 Trius Monochrome CCD
Mount:Sky-Watcher EZ-EQ6 GT
Guiding camera:Starlight-XPress Lodestar Autoguider
Software:Pleiades Astrophoto PIXINSIGHT 1.8, Main Sequence Software Sequence Generator Pro, Photoshop CS6
Filters:Ha 3nm, Blue, Green, Red
Accessories:Starlight Xpress SX 'Maxi wheel', Lakeside Astro Motor Focus System, Starlight Instruments FTF3545B-A Focuser
Resolution: 3373x2762
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: 35.099 degrees
DEC center: 57.139 degrees
Pixel scale: 1.435 arcsec/pixel
Orientation: 0.123 degrees
Field radius: 0.869 degrees
Locations: The Hills Observatory, Manchester, United Kingdom
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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