This ethereal presence, delineated by an eerie blue radiance, stands out against a backdrop of interstellar clouds and dust.
Captured with a long integration time of 55 hours at f2, the image reveals the distinct emissions of ionized hydrogen and oxygen in red and blue tones.
Situated approximately 5,000 light-years away, the visible expanse of the expanding supernova remnant is roughly 150 light-years in diameter.
Despite extensive observations, the original star’s remains have yet to be identified.
The supernova’s light would have reached our planet around 15,000 years ago.
It’s a region full of Oiii emisions, this is the Oiii channel only:
Also another interesting point on this picture, specially happy with the capture of the small planetary nebula Weinberger 1-10 (PK086+05.1) on the down left part of the picture, really bright on this picture.
Equipment
Imaging Telescopes Or Lenses
Sigma 135mm F1.8 DG HSM (Art)
Imaging Cameras
ZWO ASI294MM Pro
Mounts
ZWO AM5
Filters
Astronomik Deep-Sky Blue 36mm · Astronomik Deep-Sky Green 36mm · Astronomik Deep-Sky Red 36mm · Astronomik H-alpha CCD MaxFR 6nm 36 mm · Astronomik L-2 Luminance UV/IR Block 36mm · Astronomik OIII CCD MaxFR 6nm 36 mm
Accessories
Pegasus Astro USB Control Hub · Talon 6 · ZWO EAF · ZWO EFW 7 x 36mm
Software
Pleiades Astrophoto PixInsight · Starkeeper Voyager Custom Array
Guiding Telescopes Or Lenses
ZWO 30mm Mini Guider Scope
Guiding Cameras
ZWO ASI290MM Mini
Acquisition details
Dates:
Oct. 11 – 12, 2023
Nov. 6, 2023
Nov. 8, 2023
Nov. 13, 2023
Frames:
Astronomik Deep-Sky Blue 36mm: 100×60″(1h 40′)
Astronomik Deep-Sky Green 36mm: 100×60″(1h 40′)
Astronomik Deep-Sky Red 36mm: 100×60″(1h 40′)
Astronomik H-alpha CCD MaxFR 6nm 36 mm: 150×600″(25h)
Astronomik OIII CCD MaxFR 6nm 36 mm: 150×600″(25h)
Integration:
55h
Avg. Moon age:
20.44 days
Avg. Moon phase:
15.20%
RA center: 20h21m57s.1
DEC center: +45°30′17″
Pixel scale: 10.860 arcsec/pixel
Orientation: -88.698 degrees
Field radius: 4.985 degrees
WCS transformation: thin plate spline
Resolution: 2735×1863
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
via Flickr https://flic.kr/p/2pTKkFQ