119 relations: A-type main-sequence star, Absolute magnitude, AD Leonis, Alpha Centauri, Alpha Centauri Bb, Alpha Centauri Bc, Antares, Apparent magnitude, Barnard's Star, Brown dwarf, Declination, DEN 0255-4700, DEN 1048-3956, DENIS J081730.0-615520, Distance, DX Cancri, Earth, Epoch (astronomy), Epsilon Eridani, Epsilon Indi, EZ Aquarii, G 208-44/208-45, G-type main-sequence star, Gamma Microscopii, Georgia State University, GJ 1002, GJ 1005, GJ 1061, Gliese 1, Gliese 412, Gliese 445, Gliese 674, Gliese 687, Gliese 710, Gliese 832, Gliese 876, Gravity, Groombridge 1618, Groombridge 34, HIP 85605, Hipparcos, Interstellar travel, J band, J. Davy Kirkpatrick, K-type main-sequence star, Kapteyn's Star, Kruger 60, L 1159-16, Lacaille 8760, Lacaille 9352, ..., Lalande 21185, LHS 288, LHS 292, Light-year, List of brightest stars, List of nearest bright stars, List of nearest exoplanets, List of nearest galaxies, List of star systems within 20–25 light years, Lists of stars, Local Bubble, LP 145-141, Luhman 16, Luyten 726-8, Luyten's Star, Magnitude (astronomy), Margin of error, Milky Way, Minute and second of arc, Monthly Notices of the Royal Astronomical Society, Naked eye, Nearby Stars Database, Northern Arizona University, Orion Arm, Parallax, Parsec, Procyon, Proper motion, Proxima Centauri, Radial velocity, Red dwarf, Research Consortium On Nearby Stars, Right ascension, Ross 128, Ross 154, Ross 248, Ross 614, Scholz's star, Science Daily, SCR 1845-6357, Sirius, Solar System, Star, Star catalogue, Star system, Stars and planetary systems in fiction, Stellar classification, Stellar kinematics, Stellar parallax, Struve 2398, Sub-brown dwarf, Sun, Tau Ceti, Teegarden's star, The Astrophysical Journal, The Magnificent Seven (neutron stars), UBV photometric system, UGPS J072227.51-054031.2, Van Maanen 2, Visible spectrum, White dwarf, WISE 0350−5658, WISE 0855−0714, WISE 1506+7027, Wolf 359, Wolf 424, YZ Ceti, 2MASS J154043.42-510135.7, 61 Cygni. Expand index (69 more) » « Shrink index
An A-type main-sequence star (A V) or A dwarf star is a main-sequence (hydrogen-burning) star of spectral type A and luminosity class V. These stars have spectra which are defined by strong hydrogen Balmer absorption lines.
Absolute magnitude is the measure of intrinsic brightness of a celestial object.
AD Leonis (Gliese 388) is a red dwarf star.
Alpha Centauri (α Cen), also known as Rigil Kent or Toliman, is the closest star system to the Solar System at.
Alpha Centauri Bb is a possible extrasolar planet orbiting the K-type main-sequence star Alpha Centauri B, located 4.37 light-years from Earth in the southern constellation of Centaurus.
Alpha Centauri Bc is a suspected exoplanet orbiting Alpha Centauri B, part of Alpha Centauri system, the closest star system to our own.
Antares, also known by its Bayer designation Alpha Scorpii (abbreviated to α Scorpii or α Sco), is the fifteenth brightest star in the nighttime sky and the brightest star in the constellation Scorpius, and is often referred to as "the heart of the scorpion".
The apparent magnitude (m) of a celestial object is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere.
Barnard's Star is a very-low-mass red dwarf about six light-years away from Earth in the constellation of Ophiuchus.
Brown dwarfs are substellar objects not massive enough to sustain hydrogen-1 fusion reactions in their cores, unlike main-sequence stars.
In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle.
DENIS 0255-4700 is an extremely faint brown dwarf approximately 16 light years from the Solar System in the southern constellation of Eridanus.
DEN 1048-3956 is a brown dwarf about 13 light years from Earth in the southern constellation of Antlia, among the closest interstellar objects to Earth.
DENIS J081730.0-615520 (also known as 2MASS 08173001-6155158) is a T brown dwarf approximately away in the constellation Carina.
Distance is a numerical description of how far apart objects are.
DX Cancri is the variable star identifier for a small star in the northern zodiac constellation of Cancer the crab.
Earth (also the world, in Greek: Gaia, or in Latin: Terra), is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to accommodate life.
In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.
Epsilon Eridani (ε Eri, ε Eridani) is a star in the southern constellation Eridanus, along a declination 9.46° south of the celestial equator.
Epsilon Indi (ε Indi, ε Ind) is a star system approximately 12 light-years from Earth in the constellation of Indus consisting of a K-type main-sequence star, ε Indi A, and two brown dwarfs, ε Indi Ba and ε Indi Bb, in a wide orbit around it.
EZ Aquarii is a triple star system approximately from the Sun in the constellation Aquarius.
V1581 Cygni (G 208-44/208-45, GJ 1245) is a triple star system, 14 light-years away, relatively close to the Solar System.
A G-type main-sequence star (Spectral type: G-V), often (and imprecisely) called a yellow dwarf, or G dwarf star, is a main-sequence star (luminosity class V) of spectral type G. Such a star has about 0.8 to 1.2 solar masses and surface temperature of between 5,300 and 6,000 K., G. M. H. J. Habets and J. R. W. Heintze, Astronomy and Astrophysics Supplement 46 (November 1981), pp.
Gamma Microscopii (γ Microscopii, γ Mic) is the brightest star in the faint southern constellation of Microscopium.
Georgia State University (GSU) is a public research university in downtown Atlanta, Georgia, United States.
GJ 1002 is a red dwarf star.
GJ 1005 is a system of two red dwarfs, located in constellation Cetus at 19.58 light-years from Earth.
GJ 1061 is a small red dwarf approximately 12 light-years from Earth in the southern constellation of Horologium.
Gliese 1 is a red dwarf in the constellation Sculptor, which is found in the southern celestial hemisphere.
Gliese 412 is a pair of stars that share a common proper motion through space and are thought to form a binary star system.
Gliese 445 (Gl 445) is an M-type main sequence star in the constellation of Camelopardalis, close to Polaris.
Gliese 674 (Gliese–Jahreiß 674) is a pre-main-sequence red dwarf approximately 15 light years away in the southern constellation of Ara.
Gliese 687, or GJ 687 (Gliese–Jahreiß 687) is a red dwarf in the constellation Draco.
Gliese 710 is a star in the constellation Serpens Cauda with an apparent visual magnitude of 9.69.
Gliese 832 (Gl 832 or GJ 832) is a red dwarf of spectral type M1.5V in the constellation Grus.
Gliese 876 is a red dwarf approximately 15 light-years away from Earth in the constellation of Aquarius.
Gravity or gravitation is a natural phenomenon by which all things with mass are brought towards (or 'gravitate' towards) one another including stars, planets, galaxies and even light and sub-atomic particles.
Groombridge 1618 is a star in the constellation Ursa Major.
Groombridge 34 is a binary star system located about 11.7 light-years from the Sun.
HIP 85605 is a star in the constellation Hercules with a visual apparent magnitude of 11.03.
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.
Interstellar space travel is manned or unmanned travel between stars.
J band can refer to three different regions of the electromagnetic spectrum, in the radio and near-infrared.
A K-type main-sequence star (K V), also referred to as an orange dwarf or K dwarf, is a main-sequence (hydrogen-burning) star of spectral type K and luminosity class V. These stars are intermediate in size between red M-type main-sequence stars and yellow G-type main-sequence stars.
Kapteyn's Star is a class M1 red dwarf about 12.76 light years from Earth in the southern constellation Pictor, and the closest halo star to the Solar System.
Kruger 60 (DO Cephei) is a binary star system located 13.15 light-years from the Sun.
L 1159-16 is a red dwarf in the northern constellation of Aries.
Lacaille 8760 (AX Microscopii) is a red dwarf in the constellation Microscopium, the microscope.
Lacaille 9352 (Lac 9352) is a star in the southern constellation of Piscis Austrinus.
Lalande 21185 is a red dwarf in the constellation of Ursa Major.
LHS 288 (Luyten 143-23) is a red dwarf 15.6 light years from the Sun, the closest in the constellation Carina.
LHS 292 is a red dwarf in the constellation Sextans.
A light-year (abbreviation: ly), sometimes written light year, is a unit of length used informally to express astronomical distances.
This is a list of the brightest naked eye stars to +2.50 magnitude, as determined by their maximum, total or combined apparent visual magnitudes as seen from Earth.
This list of nearest bright stars is a table of stars found within 15 parsecs (48.9 light-years) of the Sun that have an absolute magnitude of +8.5 or brighter, which is approximately comparable to a listing of stars more luminous than a red dwarf.
From the total of known exoplanets orbiting around different stars (as of), only a small fraction are located in the vicinity of the Solar System.
This is a list of known galaxies within 3.59 megaparsecs (11.7 million light-years) of our Solar System, in ascending order of distance.
This is a list of star systems within 20–25 light years of Earth.
The following are lists of stars.
The Local Bubble is a cavity in the interstellar medium (ISM) in the Orion Arm of the Milky Way.
LP 145-141 is a white dwarf located 15 light years from the Solar System.
Luyten 726-8, also known as Gliese 65, is a binary star system that is one of Earth's nearest neighbors, at about 8.7 light years from Earth in the constellation Cetus.
Luyten's Star (GJ 273) is a red dwarf in the constellation Canis Minor located at a distance of approximately from the Sun.
In astronomy, magnitude is the logarithmic measure of the brightness of an object, measured in a specific wavelength or passband, usually in the visible or near-infrared spectrum.
The margin of error is a statistic expressing the amount of random sampling error in a survey's results.
The Milky Way is the galaxy that contains our Solar System.
A minute of arc (MOA), arcminute (arcmin) or minute arc is a unit of angular measurement equal to one-sixtieth of one degree.
Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.
Naked eye (also called bare eye) is the practice of engaging in visual perception unaided by a magnifying or light-collecting optical device, such as a telescope or microscope.
The Nearby Stars Database (NStars) began as a NASA project in 1998 and is now based at Northern Arizona University.
Northern Arizona University (NAU) is a public university located in Flagstaff, Arizona, United States.
The Orion Arm is a minor spiral arm of the Milky Way some across and approximately in length.
Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.
A parsec (symbol: pc) is a unit of length used to measure the astronomically large distances to objects outside the Solar System.
Procyon (α CMi, α Canis Minoris, Alpha Canis Minoris) is the brightest star in the constellation Canis Minor.
Proper motion is the astronomical measure of the observed changes in apparent positions of stars in the sky as seen from the center of mass of the Solar System, as compared to the imaginary fixed background of the more distant stars.
The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point.
A red dwarf is a small and relatively cool star on the main sequence, either late K or M spectral type.
The REsearch Consortium On Nearby Stars (RECONS) is an international group of astronomers founded in 1994 to investigate the stars nearest to the Solar System - with a focus on those within 10 parsecs (32.6 light years), but as of 2012 stretching the horizon to 25 parsecs.
Right ascension (abbreviated RA; symbol α) is the angular distance measured eastward along the celestial equator from the vernal equinox to the hour circle of the point in question.
Ross 128 is a small star in the equatorial zodiac constellation of Virgo, the virgin.
Ross 154 (V1216 Sgr) is a star in the southern zodiac constellation of Sagittarius.
Ross 248, also called HH Andromedae or Gliese 905, is a small star located approximately from Earth in the northern constellation of Andromeda.
Ross 614 (V577 Monocerotis) is a red dwarf UV Cetiflare star and it is the primary member of a nearby binary star system in the constellation of Monoceros.
Scholz's star (WISE designation WISE 0720−0846 or fully WISE J072003.20−084651.2) is a binary stellar system about from the Sun in the southern constellation Monoceros near the Galactic plane.
Science Daily is an American news website for topical science articles.
SCR 1845-6357 is a binary system, about 12.6 light-years away in the constellation Pavo.
Sirius is the brightest star (in fact, a star system) in the Earth's night sky.
The Solar SystemCapitalization of the name varies.
A star is a luminous sphere of plasma held together by its own gravity.
A star catalogue, or star catalog, is an astronomical catalogue that lists stars.
A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction.
The planetary systems of stars other than the Sun and the Solar System are a staple element in much science fiction.
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion.
Stellar parallax is parallax on an interstellar scale: the apparent shift of position of any nearby star (or other object) against the background of distant objects.
Struve 2398 (Gliese 725) is a binary star system in the constellation Draco.
A sub-brown dwarf or planetary-mass brown dwarf is an astronomical object formed in the same manner as stars and brown dwarfs (i.e. through the collapse of a gas cloud) but that has a mass below the limiting mass for thermonuclear fusion of deuterium (about). Some researchers call them free-floating planets whereas others call them planetary-mass brown dwarfs.
The Sun (in Greek: Helios, in Latin: Sol) is the star at the center of the Solar System and is by far the most important source of energy for life on Earth.
Tau Ceti (τ Cet, τ Ceti) is a star in the constellation Cetus that is spectrally similar to the Sun, although it has only about 78% of the Sun's mass.
Teegarden's Star (SO J025300.5+165258, 2MASS J02530084+1652532, LSPM J0253+1652) is an M-type brown dwarf in the constellation Aries, located about 12 light years from the Solar System.
The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.
The Magnificent Seven is the informal name of a group of isolated young cooling neutron stars at a distance of 200 to 500 parsecs from Earth.
UBV photometric system, also called the Johnson system (or Johnson-Morgan system), is a wide band photometric system for classifying stars according to their colors.
UGPS J072227.51-054031.2 (designation often abbreviated to UGPS 0722-05) is a brown dwarf of late T type, located approximately from Earth.
Van Maanen 2 (van Maanen's Star) is a white dwarf.
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.
A white dwarf, also called a degenerate dwarf, is a stellar remnant composed mostly of electron-degenerate matter.
WISE J035000.32−565830.2 (designation abbreviated to WISE 0350−5658) is a brown dwarf of spectral class Y1, located in constellation Reticulum, the nearest known star/brown dwarf in this constellation.
WISE 0855−0714 (full designation WISE J085510.83−071442.5) is a (sub-)brown dwarf s (s) from Earth announced in April 2014 by Kevin Luhman using data from the Wide-field Infrared Survey Explorer (WISE).
WISEPC J150649.97+702736.0 (designation abbreviated to WISE 1506+7027, or WISE J1506+7027) is a brown dwarf of spectral class T6, located in constellation Ursa Minor.
Wolf 359 is a red dwarf that is located in the constellation Leo, near the ecliptic.
Wolf 424 is a binary star system comprising two red dwarf stars at a distance of approximately 14.2 light years from the Sun.
YZ Ceti is a red dwarf star in the constellation Cetus.
2MASS J154043.42−510135.7 (2M1540) is a red dwarf of spectral type M7, located in constellation Norma at approximately 15 light-years from Earth.
61 Cygni Not to be confused with 16 Cygni, a more distant system containing two G-type stars harboring the gas giant planet 16 Cygni Bb.
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