Hemisphere:  Northern  ·  Contains:  NGC 4627  ·  NGC 4631  ·  NGC4627  ·  NGC4631  ·  Whale Galaxy
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Whale Herring Galaxy (NGC4631), 


            Jose Carballada
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Whale Herring Galaxy (NGC4631)

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

Accessory: ZWO EFW  ·  MoonLite NiteCrawler WR30  ·  MoonLite CSL 2.5" Focuser with High Res Stepper Motor

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

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


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 equipament.

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



Jose Carballada
License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


Whale Herring Galaxy (NGC4631), 


            Jose Carballada