Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  NGC 4627  ·  NGC 4631
NGC4631 The Whale Galaxy, 


NGC4631 The Whale Galaxy
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NGC4631 The Whale Galaxy

Technical card

Imaging telescopes or lenses: Celestron C11 Celestron

Imaging cameras: 40D Canon

Mounts: CGEM Celestron

Guiding telescopes or lenses: 80mm EON Orion

Guiding cameras: Orion Star Shooter

Focal reducers: 6.3 reducer Celestron

Software: photoshop  ·  Deep Sky Stacker  ·  Noel's Tools  ·  5.00 Images Plus

Dates:May 8, 2011

Frames: 23x120"

Integration: 0.8 hours

Avg. Moon age: 4.98 days

Avg. Moon phase: 25.54%

Basic astrometry details

Astrometry.net job: 617067

RA center: 12h 42' 15"

DEC center: +32° 29' 42"

Pixel scale: 2.941 arcsec/pixel

Orientation: 119.413 degrees

Field radius: 0.390 degrees

Resolution: 800x520

Locations: Leesburg home, Leesburg , Florida, United States


NGC 4631 (also known as the Whale Galaxy or Caldwell 32) is an edge-on spiral galaxy in the constellation Canes Venatici. This galaxy's slightly distorted wedge shape gives it the appearance of a herring or a whale, whence its nickname. Because this nearby galaxy is seen edge-on from Earth, professional astronomers observe this galaxy to better understand the gas and stars located outside the plane of the galaxy.
Observation Notes : Very bright, very large, very much elongated 6 X 1 in PA 90, bright middle. At 100X this very mottled galaxy is a rather bizarre shape that members of the Saguaro Astronomy Club call "The Slug". Discovered in 1787 by William Herschel.


Sky plot

Sky plot


NGC4631 The Whale Galaxy,