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Owl Nebula (M97) in HOOrgb

Posted on March 5, 2020April 21, 2021

www.astrobin.com/8flgba

Always a difficult object to me, so small, so dim… and always come back and I try to take something… if you’ve ever struggled with it, you know what I mean 😀 a perfect example of planetary nebula.

The Owl Nebula is a planetary nebula located approximately 2,030 light years away in the constellation Ursa Major. The nebula is approximately 8,000 years old.

In that case is a little bit more that 50 hours of integration, using only a small area of the sensor because the small size of this object, heavily cropped after a drizzle process and still at 0.34 arcsec/pixel.

Technical card
Imaging telescopes or lenses:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo, Altair Astro RC250-TT 10″ RC Truss Tube

Imaging cameras:ZWO ASI1600MM-Cool, ZWO ASI183MM-Cool

Mounts:Skywatcher EQ6R Pro, Mesu 200 Mk2

Guiding telescopes or lenses:Celestron OAG Deluxe, Teleskop Service TSOAG9 Off-Axis Guider

Guiding cameras:ZWO ASI174 Mini, ZWO ASI290 Mini

Focal reducers:Riccardi Reducer/Flattener 0.75x, Telescope-Service TS 2″ Flattener

Software:Pleiades Astrophoto PixInsight , Seqence Generator Pro

Filters:Astrodon O-III 36mm – 5nm, Astrodon S-II 36mm – 5nm, Astrodon R Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon B Gen.2 E-series 36mm, Astrodon HA 36mm – 5nm, Astrodon L Gen.2 E-series 36mm

Accessories:ZWO EFW, MoonLite NiteCrawler WR30, MoonLite CSL 2.5″ Focuser with High Res Stepper Motor

Resolution: 2604×2322

Dates:Jan. 14, 2020, Feb. 21, 2020, Feb. 23, 2020, Feb. 25, 2020, Feb. 26, 2020

Frames:
Astrodon B Gen.2 E-series 36mm: 90×30″ (gain: 75.00) -20C bin 1×1
Astrodon G Gen.2 E-series 36mm: 90×30″ (gain: 75.00) -20C bin 1×1
Optolong Ha 7nm 36mm: 165×600″ (gain: 200.00) -20C bin 1×1
Astrodon O-III 36mm – 5nm: 163×600″ (gain: 183.00) -15C bin 1×1
Astrodon R Gen.2 E-series 36mm: 90×30″ (gain: 75.00) -20C bin 1×1

Integration: 56.9 hours

Avg. Moon age: 16.01 days

Avg. Moon phase: 19.43%

Astrometry.net job: 3292004

RA center: 11h 14′ 48″

DEC center: +55° 1′ 8″

Pixel scale: 0.337 arcsec/pixel

Orientation: 269.282 degrees

Field radius: 0.163

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

via Flickr https://flic.kr/p/2iB4L9n

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