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Image and text ©2008 Akira Fujii/David Malin Images.
In the picture above, top left is NE and the image covers 71 x 57 degrees. Image centre is located at 00:56:23.4, +43:08:11 (H:M:S, D:M:S, J2000) Astrometric data from Astrometry.net and constellation boundaries are from Night Vision
The constellation is the 19th largest in the sky and covers about 720 square degrees. The best-known object in this field is M31, its companion M32 and M110, and M33 in Triangulum (see below). The image also contains the constellations of Lactera (the Lizard) and Triangulum (the Triangle) and the familiar 'W' of Cassiopeia (but not the whole constellation). It also shows parts of Cephus, Camelopardalis, Pegasus, Perseus and Pisces. The original photograph was on 4 x 5 inch film and the marked constellation boundaries have been distorted slightly to match the sky image, which is in effect a curved surface projected on to a flat plane.
The main named stars in the field shown are Achird (η Cas), Adhil (ξ And), Alderamin (α Cep), Algenib (γ Peg), Algol (β Per), Almak (γ And), Alpheratz (or Sirrah, α And = δ Peg), Caph (β Cas), Castual, Cih (γ Cas), Hamal (α Ari), Marfak, Matar, Mesarthim (γ Per), Mirach (β And), Miram (η Per), Mirfak (α Per), Ras Muthallath (Mothallah, Caput Trianguli, α Tri), Ruchbah (δ Cas), Schedar (α Cas), Scheat (β Peg), Segin (or Navin, ε Cas) and Sharatan (β Per).
Related images (other sources)