Imaging telescopes or lenses: Celestron EdgeHD 11
Imaging cameras: ZWO ASI 1600MM Cooled Pro
Mounts: Astro-Physics Mach1GTO
Guiding cameras: ZWO ASI174MM
Software: Main Sequence Software Sequence Generator Pro · PixInsight · Stark Labs PHD2 2.6.3
Filters: Astrodon Green 31mm Gen2 I-Series · Astrodon Blue 31mm Gen2 I-Series · Astrodon Lum 31mm Gen2 I-Series · Astrodon Red 31mm Gen2 I-Series
Accessory: ZWO EFW · Celestron OAG · MoonLite Focuser for EdgeHD 11
Dates:April 26, 2020 , April 27, 2020
Frames:
Astrodon Blue 31mm Gen2 I-Series: 30x120" (gain: 139.00) -20C bin 1x1
Astrodon Green 31mm Gen2 I-Series: 30x120" (gain: 139.00) -20C bin 1x1
Astrodon Lum 31mm Gen2 I-Series: 60x120" (gain: 139.00) -20C bin 1x1
Astrodon Red 31mm Gen2 I-Series: 30x120" (gain: 139.00) -20C bin 1x1
Integration: 5.0 hours
Avg. Moon age: 3.59 days
Avg. Moon phase: 14.08%
Astrometry.net job: 3634089
RA center: 16h 21' 48"
DEC center: -2° 16' 59"
Pixel scale: 0.281 arcsec/pixel
Orientation: -1.107 degrees
Field radius: 0.189 degrees
Resolution: 3806x2980
Locations: Backyard (Mag 20.8 - Bortle 4.5), Onalaska, Texas, United States
Data source: Backyard
This object is a grand design spiral galaxy located 70 million light years away in the constellation of Serpens at a declination of -2 degrees. This galaxy spans 5 arc-minutes in our apparent view, which corresponds to an actual diameter of 90,000 light years.
This 13th magnitude galaxy has a fairly low brightness disk but has some interesting structure. I can trace several arms for more than 360 degrees. Numerous star clusters are visible in the galaxy disk.
Supernova SN 2020hvp was discovered on April 21, 2020, 5 days before I took the luminance subs of this image. I didn't know about this supernova until I saw a strange new orange star in my image. The supernova stand out well from this relatively dim galaxy disk.
I am surprised at the color of this supernova. As you can see in my Supernova Collection, this is the only orange supernova I have imaged.
I have read that supernovas are rare events, so I find it surprising that this is the 5th supernova that I have captured by "accident". Each of the 5 times, I only realized that the supernova existed after seeing it in my image (or after having someone else point that out for me). It is very likely that I have imaged more supernovae that I haven't noticed, especially fainter ones, since I haven't been rigorously checking for them.
Description: Supernova SN 2020hvp
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