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I agreeImaging telescope or lens:Teleskop Service ONTC 10" f4 Newton
Imaging camera:ZWO ASI1600MM Pro
Mount:Astro-Physics Mach-1 GTO CP4
Guiding telescope or lens:Teleskop Service ONTC 10" f4 Newton
Guiding camera:Starlight Xpress Ultrastar Mono
Software:Photoshop CC, PIXINSIGHT 1.8, Seqence Generator Pro, PHD2 Guiding PHD2 v2.6.5
Filters:Astrodon Narrowband 3nm Ha, Astrodon Tru-Balance Gen2 E-Series - B 36mm, Astrodon Tru-Balance Gen2 E-Series - G 36mm, Astrodon Tru-Balance Gen2 E-Series - R 36mm, Astrodon Tru-Balance Gen2 E-Series - L 36mm
Accessories:QHYCCD QHYCFW3-M, Tele Vue Paracorr Type 2
Resolution: 3007x2405
Dates:Feb. 2, 2019, March 8, 2019, March 9, 2019, March 23, 2019, March 28, 2019, April 5, 2019
Frames:
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 39x30" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 3x45" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 143x60" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - G 36mm: 169x60" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - L 36mm: 386x20" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - L 36mm: 412x30" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - R 36mm: 172x60" (gain: 76.00) -20C bin 1x1
Astrodon Narrowband 5nm Ha: 58x360" (gain: 139.00) -20C bin 1x1
Integration: 19.8 hours
Darks: ~50
Flats: ~20
Flat darks: ~50
Bias: ~100
Avg. Moon age: 11.95 days
Avg. Moon phase: 25.73%
Bortle Dark-Sky Scale: 5.00
Astrometry.net job: 2696685
RA center: 14h 3' 11"
DEC center: +54° 23' 16"
Pixel scale: 0.913 arcsec/pixel
Orientation: 352.761 degrees
Field radius: 0.488
Locations: Home Observatory, Schenectady, New York, United States
Data source: Backyard
The Pinwheel Galaxy (M101) is a face-on spiral galaxy, 23 million light years from Earth in the constellation Ursa Major.
M101 has a high population of H II regions, many of which are very large and bright. H II regions usually accompany the enormous clouds of high density molecular hydrogen gas contracting under their own gravitational force where stars form. H II regions are ionized by large numbers of extremely bright and hot young stars; those in M101 are capable of creating hot superbubbles. In a 1990 study, 1264 H II regions were cataloged in the galaxy. Three are prominent enough to receive New General Catalogue numbers - NGC 5461, NGC 5462, and NGC 5471. (source: Wikipedia)
ZWO ASI1600 MM Pro
LRGB data: Gain 76, Offset 30
Ha data: Gain 139, Offset 50
| Cloudy Nights |
| Northeast Imagers |
| CMOS Imagers |
| ZWO ASI1600MM/QHY163M |
| Fast Newtonians |
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