Tag Archives: Whale Galaxy

NGC 4631, Whale Galaxy


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.

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: Deep Sky Stacker,  photoshop, Noel’s Tools,  5.00 Images Plus
Resolution: 800×520
Dates: May 8, 2011
Frames: 23×120″
Integration: 0.8 hours
Avg. Moon age: 4.48 days
Avg. Moon phase: 21.07%
RA center: 190.566 degrees
DEC center: 32.495 degrees
Pixel scale: 2.941 arcsec/pixel
Orientation: 119.413 degrees
Field radius: 0.390 degrees
Locations: Leesburg home, Leesburg , Florida, United States
Author: AlBroxton

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