P Cygni (34 Cygni) is a variable star in the constellation Cygnus. The designation "P" was originally assigned by Johann Bayer in Uranometria as a nova...
16 KB (1,683 words) - 15:15, 18 July 2024
Uranometria, Alpha, Beta and Gamma Cygni form the pole of a cross, while Delta and Epsilon form the cross beam. The nova P Cygni was then considered to be the...
51 KB (5,864 words) - 19:05, 16 July 2024
Luminous blue variable (redirect from P Cygni variable)
one of the brightest stars of the Large Magellanic Cloud. The LBV stars P Cygni and η Carinae have been known as unusual variables since the 17th century...
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and consists of the brightest stars in Cygnus: Deneb, Sadr, Gienah, Delta Cygni and Albireo. The 'head' of the cross, Deneb, is also part of the Summer...
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spectra. He showed that the broad emission lines seen in Wolf-Rayet and P Cygni-type stars were due to strong stellar winds. Beals was the first astronomer...
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Deneb (redirect from Alpha Cygni)
consisting of Deneb, Gamma Cygni, Delta Cygni, 30 Cygni, Nu Cygni, Tau Cygni, Upsilon Cygni, Zeta Cygni and Epsilon Cygni. Consequently, the Chinese name...
28 KB (2,991 words) - 03:13, 1 August 2024
Weigelt Blobs. Most lines show a P Cygni profile but with the absorption wing much weaker than the emission. The broad P Cygni lines are typical of strong...
124 KB (14,881 words) - 23:41, 28 July 2024
their spectral lines, producing a distinctive spectral shape known as a P Cygni profile. The use of hydrogen emission lines is not helpful for defining...
40 KB (4,533 words) - 16:48, 2 August 2024
Wolf–Rayet emission lines frequently have a broadened absorption wing (P Cygni profile) suggesting circumstellar material. A WO sequence has also been...
96 KB (10,604 words) - 04:32, 1 August 2024
61 Cygni /ˈsɪɡni/ is a binary star system in the constellation Cygnus, consisting of a pair of K-type dwarf stars that orbit each other in a period of...
50 KB (5,255 words) - 11:51, 22 June 2024