Long integration capture using narrow band filters and HSO palette plus rgb stars.
My longest integration up to now (51 hours), capturing frames during the last three months.
“The Crab Nebula is a supernova remnant in the constellation of Taurus.
The nebula lies in the Perseus Arm of the Milky Way galaxy, at a distance of about 2.0 kiloparsecs (6,500 ly) from Earth. It has a diameter of 3.4 parsecs (11 ly) and is expanding at a rate of about 1,500 kilometres per second or 0.5% of the speed of light.”
(desc. credits: Wikipedia)
Technical card
Imaging telescopes or lenses:Altair Astro RC250-TT 10″ RC Truss Tube, Teleskop Service TS Photoline 107mm f/6.5 Super-Apo
Imaging cameras:ZWO ASI183MM-Cool, ZWO ASI1600MM-Cool
Mounts:Skywatcher EQ6R Pro, Mesu 200 Mk2
Guiding telescopes or lenses:Teleskop Service TSOAG9 Off-Axis Guider, Celestron OAG Deluxe
Guiding cameras:ZWO ASI174 Mini, ZWO ASI290 Mini
Focal reducers:Riccardi Reducer/Flattener 0.75x, Telescope-Service TS 2″ Flattener
Software:Main Sequence Software Seqence Generator Pro, Pleiades Astrophoto PixInsight
Filters:Optolong OIII 6.5nm 36mm, Optolong SII 6.5nm 36mm, Astrodon HA 36mm – 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm, Astrodon S-II 36mm – 5nm, Astrodon O-III 36mm – 5nm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30, MoonLite CSL 2.5″ Focuser with High Res Stepper Motor
Resolution: 1979×1476
Dates:Oct. 27, 2019, Nov. 24, 2019, Nov. 30, 2019, Dec. 2, 2019, Dec. 22, 2019
Frames:
Astrodon B Gen.2 E-series 36mm: 60×30″ (gain: 75.00) -20C bin 1×1
Astrodon G Gen.2 E-series 36mm: 60×30″ (gain: 75.00) -20C bin 1×1
Astrodon HA 36mm – 5nm: 175×600″ (gain: 200.00) -20C bin 1×1
Optolong OIII 6.5nm 36mm: 63×600″ (gain: 183.00) -15C bin 1×1
Astrodon R Gen.2 E-series 36mm: 60×30″ (gain: 75.00) -20C bin 1×1
Optolong SII 6.5nm 36mm: 63×600″ (gain: 183.00) -15C bin 1×1
Integration: 51.7 hours
Avg. Moon age: 18.27 days
Avg. Moon phase: 14.46%
Astrometry.net job: 3149190
RA center: 83.630 degrees
DEC center: 22.014 degrees
Pixel scale: 1.007 arcsec/pixel
Orientation: 90.441 degrees
Field radius: 0.345 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
via Flickr https://flic.kr/p/2i7zFFo