Binary stars

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star in the constellation Centaurus

star in the constellation Boötes

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theorized range of orbits around a star on which brown dwarfs cannot exist as a companion object

binary star system in the constellation Centaurus

star in the constellation Ara

star in the constellation Boötes

binary star system in the constellation Lyra

star in the constellation Canis Major

phenomenon in astronomical spectroscopy, named after Otto Struve and Jorge Sahade

star system in the constellation Pegasus

star in the constellation Pisces

binary star system in the constellation Pegasus

brown dwarf

variable star in the constellation Cygnus

star in the constellation Camelopardalis

star system in the constellation Centaurus

HAT-P-27, also known as WASP-40, is the primary of a binary star system about 659 light-years away. It is a G-type main-sequence star. The star's age is similar to the Sun's at 4.4 billion years. HAT-P-27 is enriched in heavy elements, having a 195% concentration of iron compared to the Sun.

variable star in the constellation Lacerta

star in the constellation Dorado

WASP-20, also known as CD-24 102, is a binary star system in the equatorial constellation Cetus, located at a distance of about from the Sun. The primary star is an F-type main sequence star and hosts one confirmed exoplanet, WASP-20b.

binary star system in the constellation Centaurus

star in the constellation Hercules

star in the constellation Perseus

binary star system in the constellation Ophiuchus

binary star system in the constellation Cetus

WASP-36 is a G-type main-sequence star about 1,230 light-years away in the Hydra constellation.

variable star in the constellation Monoceros

star in the constellation Delphinus

star in the constellation Lacerta

effective mass of a binary system, determining the evolution of gravitational waves

function that gives the minimum mass of a star or planet in a spectroscopic binary system

binary star system in the constellation Lepus

High-mass X-ray binary

star in the constellation Eridanus

star in the constellation Cancer

star in the constellation Ophiuchus

multiple star system in the constellation Eridanus

Star system in the constellation Octans

star in the constellation Cetus

star in the constellation Eridanus

Binary star

HAT-P-29, also known as Muspelheim since 2019 (as part of the IAU's NameExoWorlds project), is a star about away. It is an F-type main-sequence star. The star's age of 2.2 billion years is less than half that of the Sun. HAT-P-29 is slightly enriched in heavy elements, having 35% more iron than the Sun.

star in the constellation Taurus

binary star system in the constellation Pegasus

WASP-72 (also known as CD-30 1019 and officially named Diya) is the primary of a binary star system. It is an F7 class dwarf star, with an internal structure just on the verge of the Kraft break. It is orbited by a planet, WASP-72b. The age of WASP-72 is younger than the Sun at 3.55 billion years.

WASP-29 is a binary star system away in the constellation of Phoenix. The primary star is a K-type main-sequence star. Its comoving companion, a red dwarf star, was discovered in 2021. The star system kinematically belongs to the thin disk of the Milky Way. The primary is an old star with small starspot activity and low x-ray flux.

pulsar

star in the constellation Cassiopeia

star in the constellation Capricornus

star in the constellation Aquila

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binary star in the constellation Draco

star in the constellation Cassiopeia

star in the constellation Cancer

binary star system in the constellation of Cancer

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star in the constellation Columba

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