V404 Cygni is a microquasar and a triple star system in the constellation of Cygnus. It contains a black hole with a mass of about 9 M☉ and an early K...
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Albireo (redirect from Beta Cygni)
Albireo /ælˈbɪrioʊ/ is a binary star designated Beta Cygni (β Cygni, abbreviated Beta Cyg, β Cyg). The International Astronomical Union uses the name "Albireo"...
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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...
29 KB (3,104 words) - 20:39, 7 November 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 (5,233 words) - 22:27, 19 October 2024
consisting of Epsilon Cygni, Gamma Cygni, Delta Cygni, 30 Cygni, Alpha Cygni, Nu Cygni, Tau Cygni, Upsilon Cygni and Zeta Cygni. Consequently, the Chinese...
15 KB (1,163 words) - 17:52, 23 October 2024
V1974 Cygni or Nova Cygni 1992 was a nova, visible to the naked eye, in the constellation Cygnus. It was discovered visually with 10×50 binoculars on...
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pulsars have much more massive companions. Another black hole in Cygnus is V404 Cygni, which consists of a K-type star orbiting around a black hole of around...
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widely accepted to be a black hole. HDE 226868 O 30±10 7800±460 2.39±0.14 V404 Cygni Binary star system with orbit t=6.5 d 20h 24m 03.83s +33° 52′ 02.2″ 1989...
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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...
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consisting of Gamma Cygni, Delta Cygni, 30 Cygni, Alpha Cygni, Nu Cygni, Tau Cygni, Upsilon Cygni, Zeta Cygni and Epsilon Cygni. Consequently, the Chinese...
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rapidly changing jet orientation in the stellar-mass black-hole system V404 Cygni" (PDF). Nature. 569 (7756): 374–377. arXiv:1906.05400. Bibcode:2019Natur...
16 KB (1,684 words) - 21:19, 1 October 2024
NML Cygni or V1489 Cygni (abbreviated to NML Cyg or V1489 Cyg) is a red hypergiant or red supergiant (RSG) in the constellation Cygnus. It is possibly...
23 KB (2,239 words) - 04:43, 2 November 2024
such a change was observed in 2019 with the black hole X-ray binary in V404 Cygni. Pulsars emit rapidly repeating radio pulses with extremely high regularity...
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companion star during this period. One of the best such candidates is V404 Cygni. The X-ray emissions from accretion disks sometimes flicker at certain...
166 KB (18,724 words) - 06:05, 4 November 2024
SS Cygni is a variable star in the northern constellation Cygnus (the Swan). It was discovered in 1896 by Louisa D. Wells, a computer working under Edward...
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orientation of the accretion disc and jets 1989 — Identification of microquasar V404 Cygni as a binary black hole candidate system 1994 — Charles Townes and colleagues...
10 KB (1,270 words) - 00:33, 12 August 2024
68 Cygni is the Flamsteed designation for a star in the constellation Cygnus. Located approximately 690 parsecs (2,300 ly) distant, the star is a hot...
19 KB (2,058 words) - 20:18, 20 August 2024
V389 Cygni, also known as HD 201433 and HR 8094, is a star about 390 light years from the Earth, in the constellation Cygnus. It is a 5th-magnitude star...
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Chi Cygni (Latinised from χ Cygni) is a Mira variable star in the constellation Cygnus, and also an S-type star. It is around 500 light years away. χ...
32 KB (3,728 words) - 02:10, 22 June 2024
ξ Cygni (Latinised as Xi Cygni) is a spectroscopic binary star in the constellation Cygnus, made up of a K-type supergiant star (primary) and an A-type...
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V1334 Cygni, also referred to as ADS 14859 and HR 8157 in astronomical literature, is a star about 2350±25 light years from the Earth in the constellation...
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an exotic state of matter where most light does not escape the star. V404 Cygni Quark star Star composed of quark matter or strange matter. 3C 58, PSR...
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Tau Cygni, Latinised from τ Cygni, is a binary star system in the constellation Cygnus, approximately 69 light years away from Earth. This visual binary...
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Sadr Region (redirect from Gamma Cygni Nebula)
Region (also known as IC 1318 or the Gamma Cygni Nebula) is the diffuse emission nebula surrounding Sadr (γ Cygni) at the center of Cygnus's cross. The Sadr...
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V1500 Cygni or Nova Cygni 1975 was a bright nova occurring in 1975 in the constellation Cygnus. It had the second highest intrinsic brightness of any...
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Pi1 Cygni (π1 Cygni, abbreviated Pi1 Cyg, π1 Cyg) is a binary star in the northern constellation of Cygnus. It is visible to the naked eye, having a combined...
11 KB (872 words) - 22:36, 25 October 2024
31 Cygni, also known as ο1 Cygni, Omicron1 Cygni, ο2 Cygni or V695 Cygni, is a ternary star system about 750 light years away in the constellation Cygnus...
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Black Holes, astronomer Phil Charles; the Japanese Ginga (satellite) and V404 Cygni, which orbits a black hole; the William Herschel Telescope in La Palma;...
272 KB (39,675 words) - 06:52, 21 October 2024
16 Cygni A and 16 Cygni B, together with a red dwarf, 16 Cygni C. In 1996 an extrasolar planet was discovered in an eccentric orbit around 16 Cygni B....
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27 Cygni is a subgiant star in the northern constellation of Cygnus. It is faintly visible to the naked eye with an apparent visual magnitude of 5.38...
8 KB (645 words) - 11:45, 22 August 2024