A classic process for a classic target, one of the most beautiful and accessible nebula.
I tried to reveal all the complexity on the nebular gases.
It was a difficult object on my old location because theri max altitude is 53º and it was poorly visible. Now in Montsec it’s still at 53º max but with clear horizon it was possible to add close to 20 hours of end integration.
“The cluster and nebula lie at a distance of some 5,000 light-years from Earth and measure roughly 130 light years in diameter. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.”
(credits description: Wikipedia)
Technical card
Imaging telescope or lens:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo
Imaging camera:ZWO ASI1600MM-Cool
Mount:Astro-Physics Mach-1 GTO CP4
Guiding telescope or lens:Celestron OAG Deluxe
Guiding camera:QHYCCD QHY5III174
Focal reducer:Riccardi Reducer/Flattener 0.75x
Software:Main Sequence Software Seqence Generator Pro, Astro-Physics AAPC, Pleiades Astrophoto PixInsight
Filters: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
Resolution: 2223×1740
Dates:Dec. 31, 2018, Jan. 1, 2019, Jan. 2, 2019, Jan. 3, 2019, Jan. 5, 2019
Frames:
Astrodon B Gen.2 E-series 36mm: 20×10″ (gain: 200.00) -20C bin 1×1
Astrodon G Gen.2 E-series 36mm: 25×10″ (gain: 200.00) -20C bin 1×1
Astrodon HA 36mm – 5nm: 247×180″ (gain: 200.00) -20C bin 1×1
Astrodon O-III 36mm – 5nm: 53×300″ (gain: 200.00) -20C bin 1×1
Astrodon R Gen.2 E-series 36mm: 40×10″ (gain: 200.00) -20C bin 1×1
Astrodon S-II 36mm – 5nm: 52×180″ (gain: 200.00) -20C bin 1×1
Integration: 19.6 hours
Avg. Moon age: 26.38 days
Avg. Moon phase: 13.18%
Astrometry.net job: 2479353
RA center: 97.993 degrees
DEC center: 4.971 degrees
Pixel scale: 2.936 arcsec/pixel
Orientation: 270.361 degrees
Field radius: 1.151 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
via Flickr https://flic.kr/p/QzK4RX