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Star

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A star is really meant to be a single sellar object, not just somehting that looks like a star from earth. However, in many cases, other objects, such as multi-star systems, were originally thought to be stars. Because people have historically... more

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Beta Ursae Majoris   Celestial Object   Ursa Major
Beta Ursae Majoris (β UMa / β Ursae Majoris) is a star in the constellation of Ursa Major. It also has the traditional name Merak. It is more familiar to northern hemisphere observers as one of the "pointer stars" in the Big Dipper, and a line...
Orbital Relationship
Polaris Celestial Object   Ursa Minor
Polaris (α UMi / α Ursae Minoris / Alpha Ursae Minoris), more commonly known as the North(ern) Star or the Pole Star, and sometimes known as the Lodestar, is the brightest star in the constellation Ursa Minor. It is very close to the north celestial...
GJ 388   Celestial Object   Leo
GJ 388 is a red dwarf star. It is located relatively near our Sun, at a distance of 15.94 light year, in the constellation Leo.
Orbital Relationship
Epsilon Sagittarii   Celestial Object   Sagittarius
Epsilon Sagittarii (ε Sgr / ε Sagittarii) is a binary star that lies 144.64 light-year distant in the constellation Sagittarius. It has a faint, 14th magnitude companion, Epsilon Sagittarii B, 32 arcsecond distant. The star forms the base of the...
Orbital Relationship
J Centauri   Celestial Object   Centaurus
J Centauri (J Cen) is a star in the constellation Centaurus. It is approximately 355 light year from Earth. J Centauri is a blue-white B-type main sequence dwarf with a mean apparent magnitude of +4.52. It is classified as a Beta Cephei type...
Orbital Relationship
Alpha Leporis   Celestial Object   Lepus
Alpha Leporis (α Lep / α Leporis) is the brightest star in the constellation Lepus. It also has the traditional name Arneb (hare in Arabic). Alpha Leporis is an older, dying star that may have already passed through a supergiant phase and is now...
Orbital Relationship
14 Herculis {{{nome}}}. Celestial Object   Hercules
14 Herculis is an orange dwarf star approximately 59 light-year away in the constellation Hercules. Because of its apparent magnitude, the star cannot be seen with the naked eye. As of 2006, it is though that 14 Herculis has two extrasolar planet in...
Procyon Celestial Object   Canis Minor
Procyon (α CMi / α Canis Minoris / Alpha Canis Minoris) is the brightest star in the constellation Canis Minor. To the naked eye, it appears to be a single star, the eighth brightest in the night sky with a visual apparent magnitude of 0.34. It is...
YZ Ceti   Celestial Object   Cetus
YZ Ceti is a red dwarf star in the constellation Cetus. Although it is relatively close to the Sun at just over 12 light year, this star can not be seen with the naked eye. It is classified as a flare star that undergoes intermittent fluctuations in...
Orbital Relationship
La Superba   Celestial Object   Canes Venatici
La Superba (Y CVn / Y Canum Venaticorum) is a star in the constellation Canes Venatici, well-known for its strikingly red appearance. La Superba is a semi-regular variable star, peaking at about +4.8 mag and diminishing to around +6.3 over a 160...
Orbital Relationship
HD 224693   Celestial Object   Cetus
HD 224693 (also known as HIP 118319) is a yellow subgiant star approximately 307 light-year away in the constellation Cetus. As of 2006, an extrasolar planet is known to orbit HD 224693. HD 224693 b is an extrasolar planet orbiting its star...
Eta Ophiuchi   Celestial Object   Ophiuchus
Eta Ophiuchi (η Oph / η Ophiuchi) is a star in the constellation Ophiuchus. It also has the traditional name Sabik. η Oph is actually a binary star system that is difficult to resolve in amateur telescopes but whose true nature has been determined...
Orbital Relationship
Chi1 Orionis   Celestial Object   Orion
Chi Orionis (χ Ori / χ Orionis) is a star about 32 light year away from Earth. It is in the constellation Orion. χ Ori is a main sequence dwarf star of spectral type G0 V. It has a faint companion with an estimated mass of about 15% of the Sun, an...
Orbital Relationship
Gliese 673   Celestial Object   Ophiuchus
Gliese 673 is a cool, orange dwarf star in the constellation Ophiuchus. The estimates of its stellar classification range from K5 to K7. Main sequence stars with this spectra have a mass in the range of 60-70% of a solar mass (comparable to the...
Orbital Relationship
Rho Cassiopeiae   Celestial Object   Cassiopeia
Rho Cassiopeiae (ρ Cas / ρ Cassiopeiae) is a yellow hypergiant in the constellation Cassiopeia. It is about 11,650 light-year away, yet can still be seen by the naked eye (in the Northern Hemisphere only), as it is 550,000 times as luminous as the...
Orbital Relationship
HD 38529   Celestial Object   Orion
HD 38529 (also known as HR 1988) is a binary star approximately 138 light-year away in the constellation of Orion. HD 38529 A is a yellow subgiant star, which has also been classified as a main sequence dwarf of spectral type G4V. It is about 40%...
82 Eridani   Celestial Object   Eridanus
82 Eridani is a star about 20 light year away from Earth. It is in constellation Eridanus. It is a main sequence star of spectral type G5. 82 G. Eridani (often abbreviated "82 Eridani") is the 82nd star in Eridanus in the now-obscure catalog...
Rigel Rigel blue supergiant Celestial Object   Orion
Rigel (β Orionis, beta Ori) is the brightest star in the constellation Orion and the sixth brightest star in the sky, with visual magnitude 0.18. Although it has the Bayer designation "beta", it is almost always brighter than Alpha Orionis ...
VV Cephei   Celestial Object   Cepheus
VV Cephei is an eclipsing binary star system located in the constellation Cepheus, approximately 3,000 light years from Earth.A red supergiant fills the system's Roche lobe when closest to its companion blue star, the latter appearing to be on the...
Orbital Relationship
Iota Persei   Celestial Object   Perseus
Iota Persei (ι Per / ι Persei) is a main sequence dwarf star in the constellation Perseus. It is somewhat larger and greater in mass than the Sun, and is located about 34 light year distant. Iota Persei has a relatively high proper motion across the...
HD 211415   Celestial Object   Grus
HD 211415 is a binary star system in the constellation Grus. It has a relatively high proper motion and is located about 44 light year from the Sun. These two stars have an orbit with a semi-major axis of 3.4″, which is approximately equal to 46 A...
Achernar Celestial Object   Eridanus
Achernar (α Eri / α Eridani / Alpha Eridani), sometimes spelled Achenar, is the brightest star in the constellation Eridanus and the eighth-brightest star in the nighttime sky. It lies at the southern tip of the constellation. Achernar is a bright,...
Orbital Relationship
HR 753   Celestial Object   Cetus
HR 753 (Harvard Revised 753) is a triple star system in the constellation of Cetus. It is located relatively near the Sun at an estimated distance of less than 24 light year, but even the brightest component is too faint to see directly with the...
Orbital Relationship
79 Ceti Plan79ceti Celestial Object   Cetus
79 Ceti (also known as HD 16141) is a yellow subgiant star approximately 117 light-year away in the constellation Cetus. It has stopped hydrogen fusion in its core, this implies an age much higher than our Sun's 4.5 billion year. Eventually the...
Orbital Relationship
SCR 1845-6357 An artist's conception of SCR 1845-6357 B looking at A Celestial Object   Pavo
SCR 1845-6357 is a binary system, about 12.6 light-year away in the constellation Pavo. The primary, SCR 1845-6357A, is a red dwarf star with a mass of about 7% of the Sun's. However the measurements are still preliminary and are subject to change. ...
HD 149026   Celestial Object   Hercules
HD 149026 is a yellow subgiant star approximately 257 light-year away in the constellation of Hercules. The star is thought to be much more massive, larger, and brighter than the Sun. As of 2005, an extrasolar planet has been confirmed to be...
L Centauri   Celestial Object   Centaurus
HD 110073 (Bayer designation l Cen / l Centauri) is a star in the constellation Centaurus. It is a blue-white B-type bright giant with an apparent magnitude of +4.63 and is approximately 355 light years from Earth. Centauri, l110073
Orbital Relationship
25 Arietis   Celestial Object   Cetus
25 Arietis is a star in the constellation Cetus. Its apparent magnitude is +6.45. Arietis, 25
Orbital Relationship
100 Aquarii   Celestial Object   Aquarius
100 Aquarii (100 Aqr) is a star in the constellation of Aquarius. Aquarii, 100
Orbital Relationship
Gamma Velorum   Celestial Object   Vela
Gamma Velorum (γ Vel/γ Velorum) is a star system in the constellation Vela. At magnitude +1.7, it is one of the brightest stars in the nighttime sky. It has the traditional names Suhail or Al Suhail al-Muhlif (confusingly, the name Suhail can also...