The Dolphin

Mrs. Reverend's favorite constellation, Delphinus the dolphin is a constellation in the northern sky, close to the celestial equator. It is one of the smaller constellations, ranked 69th in size out of 88. Delphinus was one of the 48 constellations listed by the 1st century astronomer Ptolemy, and it remains among the 88 modern constellations recognized by the International Astronomical Union.

Canon Powershot camera optics only, no scope. Stacked with Deep Sky Stacker and resized for posting, image is otherwise unedited.

Stack: 101 light frame JPEGs, in-camera dark subtraction
ISO speed rating: 1600
Shutter speed: 15.0 sec
Aperture: f/4.0
Zoom (Focal length): 139mm (equiv.)*
Exposure bias: +0.0 EV
Original image size: 1600 x 1200 Pixels
Flash used: No
Date taken: Friday, September 18, 2009
Time taken: 9:50 PM
Camera make: Canon
Camera model: Canon PowerShot SX100 IS


- Quads, hailing from Grand Marsh Observatory atop Elk Castle Hill