Binary stars

star in the constellation Ara

star in the constellation Hercules

star in the constellation Centaurus

star

star in the constellation Delphinus

star/brown dwarf/planet system

binary star system in the constellation Orion

star in the constellation Leo Minor

star in the constellation Ursa Major

star system in the constellation Draco

recurrent nova star

star

star

multiple star in the constellation Pictor

binary star system in the constellation Cetus

Kepler-296 is a binary star system in the constellation Draco. The primary star appears to be a late K-type main-sequence star, while the secondary is a red dwarf.

common gas atmosphere of a binary star system

binary star system in the constellation Capricornus

Star in the constellation Leo

star

star in the constellation Coma Berenices

binary star in the constellation Andromeda

XO-2 is a binary star system about away in the constellation Lynx. It consists of two components, XO-2N and XO-2S, both of which host planetary systems.

star in the constellation Andromeda

star in the constellation Ophiuchus

star in the constellation Aquila

binary star in the constellation Coma Berenices

binary star in the constellation Camelopardalis

star in the constellation Volans

g-type star located in the constellation of Hercules

star in the constellation Cetus

binary star system in the constellation Andromeda

binary star system in the constellation Antlia

star in the constellation Aquila

binary star system in the constellation Canes Venatici

binary star system in the constellation Coma Berenices

binary star system in the constellation Cygnus

star in the constellation Piscis Austrinus

variable star in the constellation Phoenix

star in the constellation Virgo

star in the constellation Orion

GW170814 was a gravitational wave signal from two merging black holes, detected by the LIGO and Virgo observatories on 14 August 2017. On 27 September 2017, the LIGO and Virgo collaborations announced the observation of the signal, the fourth confirmed event after GW150914, GW151226 and GW170104. It was the first binary black hole merger detected by LIGO and Virgo together.

star

star system in the constellation Cetus

star in the constellation Virgo

nearby star with a planet

star in the constellation Boötes

star in the constellation Cetus

binary star system in the constellation Fornax

star in the constellation Leo Minor

triple-star system in the constellation Norma; the best known gamma-ray burst progenitor candidate

star in the constellation Sagitta

WASP-8 is a binary star system away. The star system is much younger than the Sun at 300 million to 1.2 billion years age, and is heavily enriched in heavy elements, having nearly twice the concentration of iron compared to the Sun.

star

star in the constellation Pegasus

multiple star

star in the constellation Phoenix

variable star in the constellation Canis Major

binary star in the constellation Centaurus

star in the constellation Octans