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Whale Herring Galaxy (NGC4631) | by Carballada
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Whale Herring Galaxy (NGC4631)

www.astrobin.com/b1vggn/

 

NGC 4631 (also known as the Whale Galaxy or Caldwell 32) is a barred spiral galaxy located at 30 millions light year away in the constellation Canes Venatici.

 

More than 17 hours of integration on a new try to show all possible details with my equipment.

 

It's the last target before the COVID situation and before to stop all remote activities on the observatory, because just in case...

 

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 ASI183MM-Cool , ZWO ASI1600MM-Cool

 

Mounts:Skywatcher EQ6R Pro , Mesu 200 Mk2

 

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

 

Guiding cameras:ZWO ASI290 Mini , ZWO ASI174 Mini

 

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

 

Software:Pleiades Astrophoto PixInsight , Seqence Generator Pro

 

Filters:Astrodon R Gen.2 E-series 36mm , Astrodon G Gen.2 E-series 36mm , Astrodon B Gen.2 E-series 36mm , Astrodon L Gen.2 E-series 36mm

 

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

 

Dates:Feb. 23, 2020 , Feb. 24, 2020 , Feb. 25, 2020 , Feb. 26, 2020

 

Frames:

Astrodon B Gen.2 E-series 36mm: 85x120" (gain: 183.00) -15C bin 1x1

Astrodon G Gen.2 E-series 36mm: 85x120" (gain: 183.00) -15C bin 1x1

Astrodon L Gen.2 E-series 36mm: 186x180" (gain: 75.00) -20C bin 1x1

Astrodon R Gen.2 E-series 36mm: 85x120" (gain: 183.00) -15C bin 1x1

 

Integration: 17.8 hours

 

Avg. Moon age: 8.61 days

 

Avg. Moon phase: 2.77%

 

Astrometry.net job: 3501139

 

RA center: 12h 42' 7"

 

DEC center: +32° 33' 16"

 

Pixel scale: 1.007 arcsec/pixel

 

Orientation: -179.913 degrees

 

Field radius: 0.336 degrees

 

Resolution: 1728x1667

 

Locations: AAS Montsec, Àger, Lleida, Spain

 

Data source: Own remote observatory

 

Remote source: Non-commercial independent facility

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Uploaded on May 10, 2020