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Star in the constellation Cygnus
KY Cygni is a variable red supergiant or hypergiant of spectral class M3Ia located in the constellation Cygnus. It is approximately 4,700 light-years away
KY_Cygni
Double star system in the constellation Cygnus
system. Although designated 'beta', it is fainter than Gamma Cygni, Delta Cygni, and Epsilon Cygni and is the fifth-brightest point of light in the constellation
Albireo
Topics referred to by the same term
Germany (on vehicle licence plates) K-Y Jelly, a brand of personal lubricant KY Cygni, a red supergiant star Karnali Yaks, a Nepalese Twenty20 cricket franchise
KY
Variable star in the constellation Cygnus
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
P_Cygni
Stars with a supergiant luminosity class with a spectral type of K or M
DFK 1 Mu Cephei VV Cephei A NML Cygni S Persei UY Scuti VY Canis Majoris Westerlund 1 W26 WOH G64 A KY Cygni BI Cygni VX Sagittarii A survey expected
Red_supergiant
Binary star system in the Cygnus constellation
61 Cygni /ˈsɪɡni/ is a binary star system in the northern constellation Cygnus, consisting of a pair of K-type dwarf stars that orbit each other in a
61_Cygni
Constellation in the northern celestial hemisphere
stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also
Cygnus_(constellation)
Rare star with tremendous luminosity and high rates of mass loss by stellar winds
Scorpii BC Cygni BI Cygni CK Carinae HD 143183 KY Cygni KW Sagittarii Mu Cephei MY Cephei NML Cygni NR Vulpeculae PZ Cassiopeiae RT Carinae RW Cygni S Persei
Hypergiant
Binary star in the constellation Scorpius
Antares is dwarfed by even larger red supergiants, such as VY Canis Majoris, KY Cygni, RW Cephei or Mu Cephei. Antares, like the similarly sized red supergiant
Antares
Star in the constellation Cepheus
Levesque described the four red supergiant stars, KW Sagittarii, V354 Cephei, KY Cygni and Mu Cephei as the largest and most luminous galactic red supergiants
V354_Cephei
Brunthaler, A. (2012). "The distance and size of the red hypergiant NML Cygni from VLBA and VLA astrometry". Astronomy & Astrophysics. 544: A42. arXiv:1207
List_of_largest_stars
Star in the constellation Cygnus
consisting of Epsilon Cygni, Gamma Cygni, Delta Cygni, 30 Cygni, Alpha Cygni, Nu Cygni, Tau Cygni, Upsilon Cygni and Zeta Cygni. Consequently, the Chinese
Epsilon_Cygni
Red supergiant star in the constellation Orion
Size comparison of Betelgeuse, Mu Cephei, KY Cygni, and V354 Cephei, according to Emily Levesque
Betelgeuse
Blue supergiant star in the constellation Cygnus
consisting of Deneb, Gamma Cygni, Delta Cygni, 30 Cygni, Nu Cygni, Tau Cygni, Upsilon Cygni, Zeta Cygni and Epsilon Cygni. Consequently, the Chinese name
Deneb
Multiple star in the constellation Cygnus
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.
16_Cygni
American astrophysicist
Size comparison of Betelgeuse, Mu Cephei, KY Cygni, and V354 Cephei according to Emily Levesque's publication
Emily_Levesque
Red supergiant star in the constellation Sagittarius
and most luminous galactic red supergiants, which includes V354 Cephei, KY Cygni and Mu Cephei. In 2011, its bolometric luminosity was re-measured to be
KW_Sagittarii
Star in the constellation Cygnus
took 12 million years to enter the red supergiant phase. AZ Cygni KY Cygni NML Cygni RW Cygni Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data
BI_Cygni
Star in the constellation Cygnus
to have increased its average brightness of 0.5 magnitudes. NML Cygni KY Cygni RW Cygni This is only the age at which the star enters the red supergiant
BC_Cygni
Star in the constellation Cygnus
580±80 d. No long secondary period has been detected. BC Cygni BI Cygni NML Cygni KY Cygni Brown, A. G. A.; et al. (Gaia collaboration) (August 2018)
RW_Cygni
Star in the constellation Cygnus
consisting of Gamma Cygni, Delta Cygni, 30 Cygni, Alpha Cygni, Nu Cygni, Tau Cygni, Upsilon Cygni, Zeta Cygni and Epsilon Cygni. Consequently, the Chinese
Gamma_Cygni
Star in the constellation Cygnus
NML Cygni or V1489 Cygni (abbreviated to NML Cyg or V1489 Cyg) is a red hypergiant or red supergiant (RHG or RSG) in the constellation Cygnus. It is one
NML_Cygni
Multiple system in the constellation Cygnus
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
V404_Cygni
Third-magnitude star in the constellation Cygnus
Delta Cygni is a binary star system of a combined third-magnitude in the northern constellation of Cygnus. It is part of the Northern Cross asterism whose
Delta_Cygni
Triple star system in the constellation Cygnus
31 Cygni is a ternary star system in the constellation of Cygnus. Alternatively, it is known as ο1 Cygni, Omicron1 Cygni, ο2 Cygni or V695 Cygni. Based
31_Cygni
Star in the constellation Cygnus
Chi Cygni is a Mira variable star in the constellation Cygnus, and also an S-type star. Its name is a Bayer designation that is Latinized from χ Cygni, and
Chi_Cygni
Binary star system in the constellation Cygnus
32 Cygni is a binary star system in the constellation of Cygnus. It has the Bayer designation Omicron2 Cyg, which is Latinized from ο2 Cyg and abbreviated
32_Cygni
Star in the constellation Cygnus
Theta Cygni is a binary star system in the northern constellation of Cygnus. Its name is a Bayer designation, which is Latinized from θ Cygni and abbreviated
Theta_Cygni
Nebula near the star Sadr
1318 (also known as Gamma Cygni Nebula) is the diffuse emission nebula and a H II region surrounding the star Sadr (γ Cygni) at the center of Cygnus's
IC_1318
Variable star in the constellation Cygnus
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
SS_Cygni
Star in the constellation Cygnus
Xi Cygni is a binary star system in the constellation Cygnus. Its name is a Bayer designation that is Latinized from ξ Cygni and abbreviated Xi Cyg or
Xi_Cygni
Star and surrounding nebula
44 Cygni is a supergiant star in the constellation Cygnus. It is surrounded by the reflection nebula vdB 133. The nebula Sh 2-106 is found less than a
44_Cygni
Star in the constellation Cygnus
Mu Cygni is a binary star system in the northern constellation of Cygnus. Its name is a Bayer designation that is Latinized from μ Cygni, and abbreviated
Mu_Cygni
Star in the constellation Cygnus
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
V1974_Cygni
Star in the constellation Cygnus
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
27_Cygni
Star in the constellation Cygnus
Omega2 Cygni, Latinized from ω2 Cygni, is the Bayer designation for a solitary star in the northern constellation of Cygnus. It has an apparent visual
Omega2_Cygni
Star in the constellation Cygnus
Eta Cygni is a star in the northern constellation of Cygnus. It has the proper name Almighzal; Eta Cygni is its Bayer designation, which is Latinized from
Eta_Cygni
Binary star system in the constellation Cygnus
52 Cygni is a giant star in the northern constellation of Cygnus with an apparent magnitude of 4.22. Based on its Hipparcos parallax, it is about 291
52_Cygni
Variable star in the constellation Cygnus
Tau Cygni, Latinised from τ Cygni, also named Enduri Senggu (Manchu: ᡝᠨᡩᡠᡵᡳ ᠰᡝᠩᡤᡠ, Möllendorff: enduri senggu), is a binary star system in the constellation
Tau_Cygni
Star in the constellation Cygnus
Zeta Cygni is a binary star system in the northern constellation of Cygnus, the swan. It has the proper name Tianjinnan; Zeta Cygni is its Bayer designation
Zeta_Cygni
Star in the constellation Cygnus
Pi1 Cygni is a star in the northern constellation of Cygnus. It has the proper name Azelfafage, pronounced /əˈzɛlfəfeɪdʒ/. This system is visible to the
Pi1_Cygni
Star in the constellation Cygnus
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
V1500_Cygni
B-type subgiant star in the constellation Cygnus
Omega1 Cygni, Latinized from ω1 Cygni, is the Bayer designation for a solitary star in the northern constellation of Cygnus. It is visible to the naked
Omega1_Cygni
Star in the constellation Cygnus
Upsilon Cygni is a star in the northern constellation of Cygnus. Its name is a Bayer designation that is Latinized from υ Cygni, and abbreviated Upsilon
Upsilon_Cygni
Star in constellation Cygnus
V1331 Cygni (also known as V1331 Cyg) is a young star in the located 1,950 light years from Earth on the constellation of Cygnus. V1331 Cyg is located
V1331_Cygni
Variable Star in the constellation Cygnus
V453 Cygni (also designated HD 227696 or BD+35° 3964) is a detached eclipsing binary star system located in the constellation of Cygnus. It consists of
V453_Cygni
X-ray binary in Cygnus containing a stellar black hole
sphere, this star lies about half a degree from the 4th-magnitude star Eta Cygni. HDE 226868 is a typical O-type supergiant; the strong X-ray emissions from
Cygnus_X-1
Star in the constellation Cygnus
AZ Cygni (BD+45 3349) is a red supergiant (M3 Iab) in the constellation of Cygnus. Located 2,090 parsecs (6,800 ly) from Earth, it has been studied by
AZ_Cygni
Star in the constellation of Cygnus
classified as an Algol type eclipsing variable and given the designation V1769 Cygni, but the variation is not strictly periodic and brightness changes occur
WR_134
Star in the constellation Cygnus
28 Cygni is a binary star in the northern constellation of Cygnus. It is a faint blue-white hued star but visible to the naked eye with an apparent visual
28_Cygni
Star in the constellation Cygnus
68 Cygni is a star in the constellation Cygnus. Located approximately 690 parsecs (2,300 ly) distant, the star is a hot blue giant of spectral type O7
68_Cygni
A-type main sequence star in the constellation Cygnus
29 Cygni (also widely known as HIP 99770) is a single star in the northern constellation of Cygnus. It is dimly visible to the naked eye as a white-hued
29_Cygni
Variable star in the Cygnus constellation
CH Cygni (CH Cyg / HIP 95413 / BD +49 2999) is a red giant, variable, symbiotic binary in the constellation Cygnus. CH Cygni has a mass of 2 M☉ and a
CH_Cygni
A-type main sequence star in the constellation Cygnus
Iota2 Cygni is a single star in the constellation Cygnus. Its name is a Bayer designation that is Latinized from ι2 Cygni, and abbreviated Iota2 Cyg or
Iota2_Cygni
Semi-regular variable star in the constellation Cygnus
W Cygni is a semi-regular variable star in the constellation Cygnus, located 570 light-years from Earth. It lies less than half a degree southeast of
W_Cygni
Emission nebula
2-119. The nebula surrounds blue giant 68 Cygni. The nebula contains multiple dust lanes and bok globules. 68 Cygni is the primary source of ionization within
Clamshell_Nebula
Star in the constellation Cygnus
30 Cygni (ο1 Cygni) is a class A5III (white giant) star in the constellation Cygnus. Its apparent magnitude is 4.83 and it is approximately 610 light
30_Cygni
Star in the constellation Cygnus
8 Cygni is a single star in the northern constellation of Cygnus. Based upon its parallax of 3.79 mas, it is approximately 860 light-years (260 parsecs)
8_Cygni
Binary star in the constellation Cygnus
35 Cygni is a spectroscopic binary star in the constellation Cygnus. Its apparent magnitude is 5.18. Located around 1,000 parsecs (3,300 ly) distant,
35_Cygni
Variable star in the constellation Cygnus
X Cygni is a variable star in the northern constellation of Cygnus, abbreviated X Cyg. This is a Delta Cephei variable that ranges in brightness from
X_Cygni
Variable star system in the constellation Cygnus
SU Cygni is a triple star system in the northern constellation of Cygnus, abbreviated SU Cyg. The primary component of the system is a classical Cepheid
SU_Cygni
Star in the constellation of Cygnus
lying in the sky at the centre of the triangle formed by Deneb, γ Cygni and δ Cygni. WR 140 is thought to be a prototypical example of cosmic dust production
WR_140
Binary star system in the constellation Cygnus
Iota1 Cygni is a probable binary star system in the northern constellation Cygnus. Its name is a Bayer designation that is Latinized from ι1 Cygni, and
Iota1_Cygni
Blue hypergiant star
Cygnus OB2 #12 or VI Cygni #12 (abbreviated to VI Cyg #12), also known as Schulte 12, is an extremely luminous blue hypergiant with an absolute bolometric
Cygnus_OB2-12
Star system in the constellation Cygnus
Pi2 Cygni is a candidate triple star system in the northern constellation of Cygnus. Is name is a Bayer designation that is Latinized from π2 Cygni and
Pi2_Cygni
Nova that appeared in 1978
V1668 Cygni was a nova that appeared in the northern constellation of Cygnus, situated a couple of degrees to the southeast of the star Rho Cygni. It was
V1668_Cygni
Open cluster in the constellation Cygnus
east-north east of Gamma Cygni, also known as Sadr. It may be physically related with the nebula IC 1318 (also known as the Gamma Cygni Nebula) as it lies at
NGC_6910
Substellar object orbiting HIP 99770
(also known as 29 Cygni b) is a directly imaged super-Jupiter and gas giant exoplanet orbiting the A-type star HIP 99770 (29 Cygni) and detected with
HIP_99770_b
Star in the constellation Cygnus
Sigma Cygni, Latinised from σ Cygni, is a blue supergiant star in the constellation Cygnus. Its apparent magnitude is 4.2. It belongs to the Cygnus OB4
Sigma_Cygni
Star in the constellation Cygnus
V476 Cygni or Nova Cygni 1920 was a nova which occurred in the constellation Cygnus in 1920. It was discovered by William Frederick Denning, an English
V476_Cygni
Open cluster in the constellation Cygnus
is located 28' from P Cygni. P Cygni is the brightest star in another hypothetical open cluster, the accordingly named P Cygni Cluster, which is thought
IC_4996
Cluster of massive and luminous stars
Cygnus OB2 or VI Cygni (abbreviated to VI Cyg) is an OB association that is home to some of the most massive and most luminous stars known, including
Cygnus_OB2
Star in the constellation Cygnus
Phi Cygni, Latinized from φ Cygni, is a binary star system in the northern constellation of Cygnus. It is faintly visible to the naked eye with an apparent
Phi_Cygni
Variable star in the constellation Cygnus
V389 Cygni, also known as HD 201433 and HR 8094, is a multiple star system about 390 light years from the Earth, in the constellation Cygnus. It is visible
V389_Cygni
Star in the constellation Cygnus
9 Cygni is a binary star system in the northern constellation of Cygnus. 9 Cygni is its Flamsteed designation. The two stars have a combined magnitude
9_Cygni
FK Comae Berenices variable in the constellation Cygnus
V1794 Cygni is a single variable star in the northern constellation Cygnus. It has the identifier HD 199178 from the Henry Draper Catalogue; V1794 Cygni is
V1794_Cygni
High mass X-ray binary in the constellation of Cygnus
wavelengths, Cygnus X-3 has been given the variable star designation V1521 Cygni. Cygnus X-3 is notable for its intense X-ray emission, but it is also remarkable
Cygnus_X-3
Cloud of heated and ionized gas and dust in the constellation Cygnus
Broom", Lacework Nebula, "Filamentary Nebula") near the foreground star 52 Cygni; The Eastern Veil (also known as Caldwell 33), whose brightest area is NGC
Veil_Nebula
Star in the constellation Cygnus
57 Cygni is a close binary star system in the constellation Cygnus, located about 530 light years from Earth. It is visible to the naked eye as a blue-white
57_Cygni
Star in the constellation Cygnus
47 Cygni is a triple star system in the northern constellation of Cygnus, and is located around 4,000 light years from the Earth. It is visible to the
47_Cygni
Star in the constellation Cygnus
R Cygni is a variable star of the Mira type in the constellation Cygnus, less than 4' from θ Cygni. This is a red giant star on the asymptotic giant branch
R_Cygni
Star in the constellation Cygnus
ψ Cygni, Latinised as Psi Cygni, is a triple star system in the constellation called Cygnus. With a combined apparent visual magnitude of 4.92, it is
Psi_Cygni
1876 Nova in the constellation Cygnus
Q Cygni (Q Cyg), is a star located in the constellation Cygnus. It is also known as Nova Cygni 1876, and has the designation NGC 7114, and HR 8296. Nova
Q_Cygni
Exoplanet candidate orbiting KOI-5715
1544b 1625b 1647b 1649b c 1652b 1708b KOI-868.01 (unconfirmed) Other 16 Cygni Bb Gliese 777 Ab Gliese 777 Ac HD 185269 b HD 187123 b c HD 191806 b HIP
KOI-5715.01
Triple star system in the constellation Cygnus
both active flare stars, and the pair are collectively designated V1581 Cygni. The largest of the three stars, GJ 1245 A (G 208-44 A) is only 12% the
GJ_1245
Star in the constellation Cygnus
2 Cygni is a blue-white hued star in the northern constellation of Cygnus, located a few degrees from Albireo. It is a probable astrometric binary; the
2_Cygni
Eclipsing ternary star system in constellation Cygnus
CG Cygni is a ternary star system composed of main-sequence stars in the constellation of Cygnus about 320 light years away. The star CG Cygni A (BD+34
CG_Cygni
Star in the constellation Cygnus
Nu Cygni is a binary star system in the constellation Cygnus. Its name is a Bayer designation that is Latinized from ν Cygni and abbreviated Nu Cyg or
Nu_Cygni
Star in the constellation Cygnus
22 Cygni is a binary star system in the northern constellation of Cygnus. It is visible to the naked eye as a faint, blue-white hued star with an apparent
22_Cygni
Star in the constellation Cygnus
41 Cygni is a single star in the northern constellation of Cygnus, located near the southern border with Vulpecula. It is visible to the naked eye as
41_Cygni
Star in the constellation Cygnus
59 Cygni is a multiple star system in the northern constellation of Cygnus, located roughly 1,300 light years away from Earth. It is visible to the naked
59_Cygni
Star in the constellation Cygnus
Lambda Cygni is a multiple star system in the northern constellation of Cygnus. Its name is a Bayer designation that is Latinized from λ Cygni and abbreviated
Lambda_Cygni
Star in the constellation Cygnus
Kappa Cygni is a star in the northern constellation of Cygnus. Its name is a Bayer designation that is Latinized from κ Cygni and abbreviated Kappa Cyg
Kappa_Cygni
Giant star in the constellation Cygnus
26 Cygni is a single star in the northern constellation of Cygnus. It has the Bayer designation e Cygni, while 26 Cygni is the Flamsteed designation. This
26_Cygni
Star in the constellation Cygnus
V1057 Cygni is a suspected binary star system in the northern constellation of Cygnus. It is a variable star of the FU Orionis-type, and was the second
V1057_Cygni
Star in the constellation Cygnus
TT Cygni is a carbon star located 561 parsecs (1,830 ly) away in the northern constellation of Cygnus. It is classified as a semiregular variable of subtype
TT_Cygni
Star in the constellation Cygnus
55 Cygni (55 Cyg) is a blue supergiant star in the constellation Cygnus. It is thought to be a member of the Cygnus OB7 stellar association at about 2
55_Cygni
Star in the constellation Cygnus
Rho Cygni is a yellow-hued star in the northern constellation of Cygnus. Its name is a Bayer designation that is Latinized from ρ Cygni and abbreviated
Rho_Cygni
Star in the constellation Cygnus
V1191 Cygni is the variable star designation for an overcontact binary star system in the constellation Cygnus. First found to be variable in 1965, it
V1191_Cygni
Variable star in the constellation Cygnus
V1334 Cygni, also referred to as ADS 14859 and HR 8157 in astronomical literature, is a star about 2,350 light years from the Earth in the constellation
V1334_Cygni
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KY CYGNI
KY CYGNI
KY CYGNI
KY CYGNI
KY CYGNI
KY CYGNI
KY CYGNI
KY CYGNI
KY CYGNI
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