Arkab Posterior, Beta2 Sagittarii (β2 Sgr), is an F-type main sequence star located 134 light-years away in the southern constellation of Sagittarius. With an apparent magnitude of 4.29, it is visible to the unaided eye. The star appears in the celestial Archer’s foot along with its slightly brighter neighbour Arkab Prior (Beta1 Sgr). Star system… Read More »Arkab Posterior (Beta² Sagittarii) The post Arkab Posterior (Beta² Sagittarii) first appeared on Star Facts.| Star Facts
Arkab Prior, Beta1 Sagittarii (β1 Sgr), is a binary star located approximately 310 light-years away in the constellation Sagittarius. With an apparent magnitude of 4.01, it is faintly visible to the unaided eye. The star system appears in the foot of the celestial Archer. Star system Beta1 Sagittarii is a binary star system composed of… Read More »Arkab Prior (Beta¹ Sagittarii) The post Arkab Prior (Beta¹ Sagittarii) first appeared on Star Facts.| Star Facts
Rukbat, Alpha Sagittarii (α Sgr), is a hot blue main sequence star located 182 light years away in the zodiac constellation of Sagittarius. With an apparent magnitude of 3.97, it is visible to the unaided eye. The luminous young star marks the celestial Archer’s knee. Star type Rukbat is a blue main sequence star of… Read More »Rukbat (Alpha Sagittarii) The post Rukbat (Alpha Sagittarii) first appeared on Star Facts.| Star Facts
RSGC1-F01 is a red supergiant star located approximately 22,000 light-years away in the constellation Scutum. With an estimated radius of 1,450 to 1,530 solar radii, it is one of the largest stars known. The supergiant is member of the massive young star cluster RSGC1. Discovered in 2006, the cluster and its members are invisible to the unaided eye and cannot be seen in optical telescopes.| Star Facts
Stars: A guide to the night sky| Star Facts – Stars: A guide to the night sky
Delta Scuti (δ Sct) is a yellow-white giant located 201 light years away in the constellation Scutum. The star serves as the prototype for a class of variable stars known as the Delta Scuti variables.| Star Facts
The stars in tonight’s sky form many familiar patterns that make their host constellations easy to identify. In the northern hemisphere, the stars of the Summer Triangle – Vega, Altair, and Deneb – dominate the evening sky. These are the brightest stars in the constellations Lyra (the Lyre), Aquila (the Eagle), and Cygnus (the Swan).… Read More »Stars in the Sky Tonight The post Stars in the Sky Tonight first appeared on Star Facts.| Star Facts
Paikauhale (τ Sco) is a massive blue star located approximately 470 light-years away in the constellation Scorpius. It is one of the two stars flanking the bright Antares.| Star Facts
Edasich (ι Dra) is an orange giant star located approximately 101.2 light-years away in the constellation Draco. It hosts two orbiting exoplanets, Iota Draconis b (Hypatia) and Iota Draconis c.| Star Facts
Tianguan (ζ Tauri) is a hot blue giant star located 440 light-years away in the constellation Taurus. It marks the southern horn of the Bull and appears near the famous Crab Nebula (M1) in the sky.| Star Facts
Aldhibah (ζ Dra) is a binary star system located approximately 330 light-years away in the constellation Draco. Shining at magnitude 3.17, it is the fifth brightest star in Draco.| Star Facts
Altais (δ Dra) is a yellow giant star located 97.8 light-years away in the northern constellation Draco. With an apparent magnitude of 3.07, it is the fourth brightest star in Draco.| Star Facts
Grumium (ξ Dra), is a star located 112.5 light-years away in the northern constellation Draco. It forms the head of the celestial Dragon with Eltanin, Rastaban and Kuma.| Star Facts
Epsilon Centauri (ε Cen) is a hot blue giant located 430 light years away in the constellation Centaurus. With an apparent magnitude of 2.30, it is the fifth brightest star in Centaurus.| Star Facts
Alula Borealis (ν UMa) is an orange giant star located 399 light years away in the constellation Ursa Major. It is one of the relatively bright stars that form Three Leaps of the Gazelle.| Star Facts
Saiph, Kappa Orionis (κ Ori), is a blue-white supergiant located at a distance of 650 ly from Earth in the constellation Orion. It marks Orion's right knee.| Star Facts
Mizar, Zeta Ursae Majoris (ζ UMa), is a quadruple star system in Ursa Major. It lies at a distance of 82.9 ly. It is one of the stars that form the Big Dipper.| Star Facts
Alkaid (η UMa) is a main sequence star located at a distance of 103.9 ly in the constellation Ursa Major (the Great Bear). It is the easternmost star of the Big Dipper.| Star Facts
Alcor (80 Ursae Majoris, g Ursae Majoris) is a double star in the constellation Ursa Major. It is the fainter companion to the Big Dipper star Mizar.| Star Facts
Ain, Epsilon Tauri (ε Tau), is an orange giant star located 146 light-years away in the constellation Taurus. It is a member of the Hyades cluster and marks one of the Bull's eyes.| Star Facts
Tabit (Pi³ Orionis) is an F-type main sequence star located 26.32 light-years away in the constellation Orion. It is one of the relatively bright stars that form Orion's Shield.| Star Facts
Dalim (α For) is the primary component in a triple star system located 45.66 light-years away. It is the brightest star in the southern constellation Fornax (the Furnace).| Star Facts
Alnilam (ε Ori) is a blue supergiant star located 1,180 light-years away in the constellation of Orion. It forms Orion's Belt with Alnitak and Mintaka.| Star Facts
Castor, Alpha Geminorum (α Gem), is a sextuple star system located at a distance of 51 ly from Earth in the constellation Gemini. It consists of three binary pairs.| Star Facts
Kochab, Beta Ursae Minoris (β UMi), is an orange giant star located at a distance of 130.9 light years from Earth in the constellation Ursa Minor. It is one of the seven stars of the Little Dipper.| Star Facts
Rho Ophiuchi (ρ Oph) is a multiple star system located at a distance of 360 ly from Earth in the constellation Ophiuchus. It is embedded in the Rho Ophiuchi cloud complex.| Star Facts
The largest stars in the known universe, listed here, are mostly cool red supergiants and hypergiants. Their radii are notoriously difficult to measure for several reasons.| Star Facts
BAT99-98 is a Wolf-Rayet star located in the Tarantula Nebula in the Large Magellanic Cloud. With a mass 226 times that of the Sun, it may be the most massive star discovered to date.| Star Facts
Barnard’s Star (Gliese 699) is a red dwarf located only 5.96 light-years away in the constellation Ophiuchus. It is the fourth nearest individual star to Earth, after the three components of the Alpha Centauri system.| Star Facts
Epsilon Indi (ε Ind) is a star system located only 11.867 light-years from the Sun in the southern constellation Indus. With an apparent magnitude of 4.8310, it is visible to the unaided eye.| Star Facts
Scheat, Beta Pegasi (β Peg) is a red giant star located at a distance of 196 light years from Earth in the constellation Pegasus. It is one of the stars of the Great Square of Pegasus.| Star Facts
Alnitak, Zeta Orionis (ζ Ori), is a triple star system located at a distance of 1,260 light years. It forms Orion's Belt with Alnilam and Mintaka.| Star Facts
Naos, Zeta Puppis (ζ Pup) is a hot blue supergiant located at a distance of 1,080 light years from Earth in the constellation Puppis. It is the constellation's brightest star.| Star Facts
Menkent, Theta Centauri (θ Cen), is an orange giant star located at a distance of 58.8 light years from Earth in the constellation Centaurus.| Star Facts
Denebola, Beta Leonis (β Leo), is a white main sequence star located at a distance of 35.9 light years from Earth in the constellation Leo. It marks the Lion's tail.| Star Facts
Acrux, Alpha Crucis (α Cru), is a multiple star system located at a distance of 320 ly from Earth in the constellation Crux. It is the brightest star of the Southern Cross.| Star Facts
Enif, Epsilon Pegasi (ε Peg) is an orange supergiant star located at distance of 690 light years from Earth in the constellation Pegasus.| Star Facts
Dschubba (δ Sco A) is a hot blue subgiant star in a binary system located 444 light-years away in the zodiac constellation Scorpius. It is one of the bright stars that outline the Scorpion's claws.| Star Facts
Alniyat (σ Sco) is a hot blue giant star in a multiple star system located 568 light-years away in the constellation Scorpius. It is one of the two bright stars flanking the supergiant Antares.| Star Facts
Zubeneschamali, Beta Librae (β Lib), is a blue-white main sequence star located at a distance of 185 light years from Earth in the constellation Libra.| Star Facts
Zubenelgenubi, Alpha2 Librae (α2 Lib), is a spectroscopic binary star located at a distance of 75.8 light years from Earth in the constellation Libra.| Star Facts
Methuselah star (HD 140283) is a yellow subgiant located in the constellation Libra. With an estimated age of 12 billion years, it is one of the oldest stars known.| Star Facts
Mimosa, Beta Crucis (β Cru), is a multiple star system located at a distance of 280 ly in the constellation Crux. It is one of the stars of the Southern Cross.| Star Facts
Imai, Delta Crucis (δ Cru) is a blue-white subgiant star located at a distance of 345 ly in the constellation Crux. It is one of the stars of the Southern Cross.| Star Facts
Gacrux, Gamma Crucis (γ Cru), is a red giant star located at a distance of 88.6 ly in the constellation Crux. It is one of the stars that form the Southern Cross.| Star Facts
Kappa Scorpii (κ Sco) is a spectroscopic binary star system located 480 light-years away in the zodiac constellation Scorpius. Traditionally known as Girtab, it appears in the Scorpion’s tail.| Star Facts
Zubenelhakrabi (γ Lib) is a yellow giant star located approximately 163 light-years away in the constellation Libra. It hosts two exoplanets, Gamma Librae b and c, discovered in 2018.| Star Facts
Alpha Lupi (α Lup) is a hot blue giant star located 460 light-years away in the constellation Lupus (the Wolf). It is one of the closest supernova candidates to the Sun.| Star Facts
Aspidiske, Iota Carinae (ι Car) is a white supergiant star located 690 light years away in the southern constellation Carina. It is one of the four bright stars that form the False Cross.| Star Facts
Alsephina, Delta Velorum Aa (δ Vel Aa), is the primary component in a triple star system located 80.6 ly away in the constellation Vela. It is one of the four stars that form the False Cross.| Star Facts
Muphrid, Eta Boötis (η Boo) is a yellow subgiant star located 37.2 light-years away in the constellation Boötes (the Herdsman). It forms the Kite with Arcturus and other bright stars of Boötes.| Star Facts
Kornephoros, Beta Herculis (β Her), is a luminous yellow giant located 139 light years away in the constellation Hercules. Shining at magnitude 2.81, it is the brightest star in the constellation.| Star Facts
Brachium (σ Lib) is a red giant located approximately 288 light-years away in the constellation Libra. It is the third brightest star in Libra, after Zubeneschamali and Zubenelgenubi.| Star Facts
Larawag (ε Sco) is an orange giant star located 63.7 light-years away in the constellation Scorpius. It is one of the bright Scorpius stars that form the Fish Hook.| Star Facts
Gamma Centauri (γ Cen) is a binary star system located 130 light-years away in the constellation Centaurus. The system has the traditional name Muhlifain. It is the fourth brightest point of light in Centaurus.| Star Facts
Canopus, Alpha Carinae (α Car), is a white bright giant star located at a distance of 310 light years from Earth in the constellation Carina. It is the second brightest star in the sky.| Star Facts
Avior, Epsilon Carinae (ε Car), is a double star located at a distance of 610 light years from Earth in the southern constellation Carina.| Star Facts
Markeb, Kappa Velorum (κ Vel), is a spectroscopic binary star located 570 light years away in the constellation Vela. It is one of the four bright stars that form the False Cross.| Star Facts
Suhail, Lambda Velorum (λ Vel) is an orange supergiant star located at a distance of 545 light years from Earth in the constellation Vela.| Star Facts
Regor, Gamma Velorum (γ Vel), is a multiple star system located at a distance of 1,095 light years in the constellation Vela. It contains one of the nearest supernova candidates to Earth.| Star Facts
Rigel (β Ori) is a blue-whlue-white supergiant star located 848 light-years away in the constellation Orion. It is the most luminous star within 1,000 ly of Earth.| Star Facts
Rho Cassiopeiae (ρ Cas) is a yellow hypergiant located 3,425 light-years away in the constellation Cassiopeia. It is one of the most luminous stars known, with an energy output more than 300,000 times that of the Sun.| Star Facts
Alhena, Gamma Geminorum (γ Gem), is a spectroscopic binary star system located at a distance of 109 light years from Earth in the constellation Gemini.| Star Facts
T Tauri is a young variable star located 471 light-years away in the constellation Taurus. It serves as the prototype for the T Tauri variables and illuminates Hind’s Variable Nebula (NGC 1555).| Star Facts
Eta Carinae (η Car) is a massive binary star system located approximately 7,500 light-years away in the constellation Carina. The system consists of two exceptionally massive stars that will end their lives as supernovae.| Star Facts
R136a1 is a Wolf-Rayet star located approximately 163,000 light-years away in the constellation Dorado. It is one of the most massive and luminous stars known.| Star Facts
V838 Monocerotis (Nova Monocerotis 2002) is a red supergiant located approximately 19,200 light-years away in the constellation Monoceros. It was the first star to be classified as a luminous red nova.| Star Facts
Mebsuta, Epsilon Geminorum (ε Gem) is a yellow supergiant star located 840 light-years away in the constellation Gemini. It marks Castor's leg in the constellation figure of the Twins.| Star Facts
Phact, Alpha Columbae (α Col), is a hot blue B-type star located 261 light-years away in the constellation Columba (the Dove). It is part of a large asterism known as the Egyptian X.| Star Facts
AE Aurigae is a hot blue main sequence star located 1,320 light-years away in the constellation Auriga. It illuminates the Flaming Star Nebula (IC 405), an emission and reflection nebula visible in small telescopes.| Star Facts
Epsilon Eridani (ε Eri) is an orange dwarf located 10.475 light-years away in the constellation Eridanus. It is the third nearest visible star to the Sun. It hosts a confirmed planet, Epsilon Eridani b.| Star Facts
Nihal (β Lep) is a yellow bright giant star located 160 light-years away in the constellation Lepus. With an apparent magnitude of 2.84, it is the second brightest star in Lepus, after Arneb| Star Facts
Hatysa (ι Ori) is the primary component in a multiple star system located 1,340 light-years away in the constellation Orion. It forms Orion’s Sword with 42 Orionis, Theta Orionis, and the Orion Nebula (M42).| Star Facts
Arneb (α Lep) is an F-type supergiant star located 2,200 light-years away in the constellation Lepus (the Hare). With an apparent magnitude of 2.589, the supernova candidate is the constellation's brightest star.| Star Facts
Bellatrix, Gamma Orionis (γ Ori), is a main sequence star located at a distance of 250 ly in Orion constellation. Also known as the Amazon Star, it marks Orion's left shoulder.| Star Facts
Betelgeuse, Alpha Orionis (α Ori), is a red supergiant star and supernova candidate located 548 light-years away in the constellation Orion. Marking the Hunter's shoulder, it is one of the most recognizable stars in the night sky.| Star Facts
Sirius, Alpha Canis Majoris (α CMa), is the brightest star in the sky. The Sirius star system lies at a distance of 8.6 ly from Earth in the constellation Canis Major. It can be found using the stars of Orion's Belt.| Star Facts
Diphda, Beta Ceti (β Cet), is a giant star located at a distance of 96.3 light years from Earth in the constellation Cetus. Also known as Deneb Kaitos, it marks the tail of Cetus, the Whale.| Star Facts
40 Eridani (Keid) is a triple star system located 16.34 light-years away in the constellation Eridanus. In Star Trek lore, primary component is the host star of the planet Vulcan.| Star Facts
Segin (ε Cas) is a blue-white star located at a distance of 410 light years from Earth in the constellation Cassiopeia. It is the leftmost star of Cassiopeia's W.| Star Facts
Gamma Cassiopeiae (γ Cas) is a spectroscopic binary star located at a distance of 550 light years from Earth in the constellation Cassiopeia. It is the central star of Cassiopeia's W.| Star Facts
AG Carinae (HD 94910) is a luminous blue variable (LBV) located 17,000 light-years away in the constellation Carina (the Keel). It is one of the most luminous stars known in the Milky Way.| Star Facts
Ruchbah, Delta Cassiopeiae (δ Cas) is an eclipsing binary star system located at a distance of 99.4 light years from Earth in the constellation Cassiopeia. It is the bottom left star of Cassiopeia's W.| Star Facts
Sadalsuud, Beta Aquarii (β Aqr), is a yellow supergiant star located 540 light years away in the constellation Aquarius. It is the constellation's brightest star, with an apparent magnitude of 2.87.| Star Facts
Polaris (α UMi), the North Star, is a yellow supergiant located 446 light-years away in the constellation Ursa Minor. The star is part of the Little Dipp| Star Facts
Dubhe, Alpha Ursae Majoris (α UMa) is a spectroscopic binary star in Ursa Major constellation. It is part of the Big Dipper and known as one of the Pointer Stars.| Star Facts
Procyon, Alpha Canis Minoris (α CMi), is the eighth brightest star in the sky. It is the primary component in a binary star system located 11.46 light-years away in the constellation Canis Minor.| Star Facts
Fomalhaut, Alpha Piscis Austrini (α PsA), is a white main sequence star located 25 light-years away in the constellation Piscis Austrinus. Its hosts a planet, Dagon (Fomalhaut b), and is known for its vast debris disk.| Star Facts
Elnath, Beta Tauri (β Tau), is a blue-white giant star located at a distance of 134 ly from Earth in the constellation Taurus. It was once also known as Gamma Aurigae.| Star Facts
Acamar, Theta Eridani (θ Eri), is a binary star system consisting of two white class A stars located at a distance of 161 light years from Earth in the constellation Eridanus.| Star Facts
The nearest stars to the Sun include some of the brightest stars in the sky, but the majority of the 100 nearest stars are faint red dwarfs, like our nearest neighbour Proxima Centauri.| Star Facts
The list of all the named stars (stars with names that have been formally approved by the IAU), with name origins and etymologies explained.| Star Facts
Propus, Eta Geminorum (η Gem), is the primary component in a triple star system located 700 light-years away in the constellation Gemini. It is a red giant star that marks the foot of Castor.| Star Facts
Regulus, Alpha Leonis (α Leo), is a multiple star system located at a distance of 79.3 ly from Earth in the constellation Leo. It marks the heart of the celestial Lion.| Star Facts
Pollux, Beta Geminorum (β Gem), is an orange giant star located at a distance of 33.78 ly in the constellation Gemini. It is 43 times more luminous than the Sun.| Star Facts
Spica, Alpha Virginis (α Vir), is a blue-white spectroscopic binary star located at a distance of 250 light years from Earth in the constellation Virgo.| Star Facts
Aldebaran, Alpha Tauri (α Tau), is an orange giant star located at a distance of 65.3 ly from Earth in the constellation Taurus. It marks the eye of the Bull.| Star Facts
Achernar, Alpha Eridani (α Eri), is a rapidly rotating star located 139 ly from Earth in Eridanus constellation. It is 3,150 times more luminous than the Sun.| Star Facts
Rigil Kentaurus, Alpha Centauri A (α Cen A), is a Sun-like yellow main sequence star located at a distance of 4.37 light years from Earth in the constellation Centaurus. It is the primary component of Alpha Centauri, the nearest star system to the solar system.| Star Facts
Phecda, Gamma Ursae Majoris (γ UMa), is the 6th brightest star in the Big Dipper and in the constellation Ursa Major. It lies at a distance of 83.2 ly from Earth.| Star Facts
