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

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

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