Very faint planetary nebula in Gemini.
Sh2-290 is one of the largest known planetary nebulae, with a diameter of about 7 parsecs.

This object pushed a lot my process skills to show some data….
Not arrive to 30 hours of data because of the weather, next year I will try again and I will acquire more info.

Technical card
Imaging telescope or lens:Altair Astro RC250-TT 10" RC Truss Tube
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 O-III 36mm – 5nm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30
Resolution: 1928×1744
Dates:March 8, 2019, March 9, 2019, March 11, 2019
Astrodon B Gen.2 E-series 36mm: 40×10" (gain: 200.00) -20C bin 1×1
Astrodon G Gen.2 E-series 36mm: 40×10" (gain: 200.00) -20C bin 1×1
Astrodon HA 36mm – 5nm: 114×600" (gain: 200.00) -20C bin 1×1
Astrodon O-III 36mm – 5nm: 54×600" (gain: 200.00) -20C bin 1×1
Astrodon R Gen.2 E-series 36mm: 40×10" (gain: 75.00) -20C bin 1×1
Integration: 28.3 hours
Avg. Moon age: 2.91 days
Avg. Moon phase: 10.49%
Astrometry.net job: 2677004
RA center: 133.548 degrees
DEC center: 8.920 degrees
Pixel scale: 1.007 arcsec/pixel
Orientation: 89.461 degrees
Field radius: 0.364 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility

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

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