Imaging telescopes or lenses: Altair Astro 72edf deluxe
Imaging cameras: Altair Hypercam 183M PRO TEC
Mounts: DarkFrame Optics StellarDrive 6
Guiding telescopes or lenses: Altair Astro 60 mm guidescope
Guiding cameras: Altair GPCAM3 178M
Focal reducers: Altair Astro 0.80 Focal Reducer-Flattner
Software: PHD Guiding 2 · EQMOD EQAscom · SharpCap 3.2 · AstroPixel Processor · Pro Digital Software AstroFlat Pro
Accessory: Pegasus Astro Pocket Powerbox · Pegasus Astro FocusCube · Altair Astro DewZapper 3-4.5" OD HIGH POWER Dew Heater
Dates:June 2, 2019 , June 16, 2019 , June 17, 2019
Frames:
Baader B 2": 21x165" (gain: 381.00) -15C bin 1x1
Baader G 2": 13x135" (gain: 381.00) -15C bin 1x1
Skytech LPRO Max: 18x90" (gain: 381.00) -15C bin 1x1
Baader R 2": 6x360" (gain: 381.00) -15C bin 1x1
Integration: 2.5 hours
Darks: ~50
Flats: ~50
Bias: ~200
Avg. Moon age: 19.13 days
Avg. Moon phase: 66.74%
Bortle Dark-Sky Scale: 6.00
Astrometry.net job: 3048801
RA center: 23h 57' 49"
DEC center: +56° 44' 42"
Pixel scale: 1.393 arcsec/pixel
Orientation: 46.397 degrees
Field radius: 0.940 degrees
Resolution: 1824x1216
Locations: Backyard, Slough, Berkshire, United Kingdom
Data source: Backyard
Carolines Rose Cluster imaged in LRGB with Altair's Hypercam 183m PROTEC. Short nights and plenty of clouds meant this took a couple of weeks to assemble a decent set of data.
This was discovered way back in 1783 by Caroline Herschel, sister and chief cataloguing wizard of William Herschel, and of course great astronomer in her own right. It must have been spotted on the 20ft reflector at the Herschell observatory right here in Slough :)
Description: improved my L and B subs and calibrated the star colours
Description: I wanted to reprocess this early one as I was pretty sure I could improve this now. We had a clouple hours of clear yesterday so I did a speed run, grabbing 15s subs at high gain and stacking 100 frames for each filter. Combining that with earlier unity gain data, I came to this result.
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