O'Reilly logo

Illustrated Guide to Astronomical Wonders by Barbara Fritchman Thompson, Robert Bruce Thompson

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

12Cassiopeia, The Queen

NAME: Cassiopeia (cass-ee-oh-PEE-uh)

SEASON: Autumn

CULMINATION: midnight, 9 October

ABBREVIATION: Cas

GENITIVE: Cassiopeiae (cass-ee-oh-PEE-eye)

NEIGHBORS: And, Cam, Cep, Lac, Per

BINOCULAR OBJECTS: NGC 129, NGC 457, NGC 581 (M 103), NGC 663, Cr 463, St 2, Mrk 6, Mel 15, Tr 3, NGC 7654 (M 52), NGC 7789

URBAN OBJECTS: NGC 129, NGC 457, NGC 663, Cr 463, St 2, Tr 3, NGC 7789, 24-eta (STF 60)

Cassiopeia is a bright circumpolar autumn constellation of medium size, ranking 25th among the 88 constellations. It covers 598 square degrees of sky, or about 1.4%. The prominent shape of Cassiopeia (like the letter M or W, depending on the time of year) makes it among the most easily recognized constellations, familiar even to casual ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required