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Owl Nebula (M97) in HOOrgb | by Carballada
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Owl Nebula (M97) in HOOrgb


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 :D 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: 2604x2322


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



Astrodon B Gen.2 E-series 36mm: 90x30" (gain: 75.00) -20C bin 1x1

Astrodon G Gen.2 E-series 36mm: 90x30" (gain: 75.00) -20C bin 1x1

Optolong Ha 7nm 36mm: 165x600" (gain: 200.00) -20C bin 1x1

Astrodon O-III 36mm - 5nm: 163x600" (gain: 183.00) -15C bin 1x1

Astrodon R Gen.2 E-series 36mm: 90x30" (gain: 75.00) -20C bin 1x1


Integration: 56.9 hours


Avg. Moon age: 16.01 days


Avg. Moon phase: 19.43% 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

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Uploaded on March 5, 2020