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17 relations: Astronomical unit, Binary star, G 240-72, Hercules (constellation), Light-year, List of star systems within 20–25 light-years, LP 145-141, LP 658-2, Procyon, Radial velocity, Red dwarf, Sirius, Stein 2051, Sun, Van Maanen 2, White dwarf, 40 Eridani.
Astronomical unit
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
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Binary star
A binary star is a star system consisting of two stars orbiting around their common barycenter.
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G 240-72
G 240-72 (or WD 1748+708, or LHS 455, or GJ 1221) is a nearby degenerate star (white dwarf) of spectral class DQP9.0, located in constellation Draco.
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Hercules (constellation)
Hercules is a constellation named after Hercules, the Roman mythological hero adapted from the Greek hero Heracles.
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Light-year
The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.
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List of star systems within 20–25 light-years
This is a list of star systems within 20–25 light years of Earth.
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LP 145-141
LP 145-141 is a white dwarf located 15 light years from the Solar System.
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LP 658-2
LP 658-2 is a degenerate (white dwarf) star in the constellation of Orion, the single known object in its system.
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Procyon
Procyon, also designated Alpha Canis Minoris (α Canis Minoris, abbreviated Alpha CMi, α CMi), is the brightest star in the constellation of Canis Minor.
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Radial velocity
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.
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Red dwarf
A red dwarf (or M dwarf) is a small and relatively cool star on the main sequence, of M spectral type.
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Sirius
Sirius (a romanization of Greek Σείριος, Seirios,."glowing" or "scorching") is a star system and the brightest star in the Earth's night sky.
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Stein 2051
Stein 2051 (Gliese 169.1, G 175-034, LHS 26/27) is a nearby binary star system, containing a red dwarf (component A) and a degenerate star (white dwarf) (component B), located in constellation Camelopardalis at about 18 ly from Earth.
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Sun
The Sun is the star at the center of the Solar System.
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Van Maanen 2
Van Maanen 2 (van Maanen's Star) is a white dwarf.
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White dwarf
A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.
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40 Eridani
40 Eridani (abbreviated 40 Eri), also designated Omicron² Eridani (ο² Eridani, abbreviated Omicron² Eri, ο² Eri), is a triple star system in the constellation of Eridanus.
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