Cassiopeia

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Cassiopeia, in astronomy, prominent northern constellation located almost directly opposite the Big Dipper across the north celestial pole. Five bright stars in the constellation form a rough W (or M) in the sky. Some see in this formation the shape of a chair known as Cassiopeia's Chair. Tycho's Star, a supernova, appeared in the constellation in 1572 and disappeared in 1574. In this constellation is located Cassiopeia A, a discrete radio source emitting 21-cm radiation with great intensity. Cassiopeia reaches its highest point in the evening sky in November, but because of its location near the pole it is visible throughout the year to most northern observers.

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Cassiopeia in Greek mythology, the wife of Cepheus, king of Ethiopia, and mother of Andromeda. She boasted that she herself (or, in some versions, her daughter) was more beautiful than the nereids, thus incurring the wrath of Poseidon.

In astronomy, Cassiopeia is a constellation near the north celestial pole, recognizable by the conspicuous ‘W’ pattern of its brightest stars.

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CassiopeiaAchaea, aliyah, Almería, Apia, Bahía, Caesarea, Cassiopeia, Chaldea, Cytherea, Euboea, foreseer, freer, galleria, gynaecea, Iphigenia, Kampuchea, kea, keyer, Latakia, Leah, Lucia, Nicaea, Nicosia, onomatopoeia, Oriya, Pangaea, Pantelleria, pharmacopoeia, pizzeria, ria, rupiah, sangría, seer, sharia, Shia, skier, spiraea (US spirea), Tanzania, taqueria, Tarpeia, Thea, trachea, trattoria, urea •sightseer

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Cassiopeia (kăs´ēəpē´ə), in Greek mythology: see Andromeda.

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Cassiopeia Distinctive n constellation, representing in mythology the mother of Andromeda. The five leading stars make up a “W” or “M” pattern.