AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.
I agreeImaging telescope or lens:Altair Astro 72edf deluxe
Imaging camera:Altair Hypercam 183M PRO TEC
Mount:DarkFrame Optics StellarDrive 6
Guiding telescope or lens:Altair Astro 60 mm guidescope
Guiding camera:Altair GPCAM3 178M
Focal reducer:Altair Astro 0.80 Focal Reducer-Flattner
Software:EQMOD EQAscom, AstroPixel Processor, Pro Digital Software AstroFlat Pro, PHD2 PHD Guiding 2, SharpCap 3.2
Filter:Skytech LPRO Max
Accessories:Pegasus Astro Pocket Powerbox, Pegasus Astro FocusCube, Altair Astro DewZapper 3-4.5" OD HIGH POWER Dew Heater
Resolution: 4044x2695
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: 359.456 degrees
DEC center: 56.745 degrees
Pixel scale: 1.393 arcsec/pixel
Orientation: 46.397 degrees
Field radius: 0.940 degrees
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 :)
improved my L and B subs and calibrated the star colours
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.
Comments