Planetary systems

47 Ursae Majoris (abbreviated 47 UMa) is a 5th magnitude yellow dwarf star in the constellation of Ursa Major. Its spectral type, G1 V, is similar to our Sun. The star is relatively nearby, distance being only 46 light years. It is visible to the unaided eye under good conditions. ...more on Wikipedia about "47 Ursae Majoris"

55 Cancri (abbreviated 55 Cnc; Bayer designation ρ1 Cancri, Rho-1 Cancri) is a nearby 6th magnitude star in the constellation Cancer. The star is a binary system. The primary component is, like our Sun, a yellow dwarf, but slightly less massive and luminous. Secondary is a distant dim red dwarf. Distance to the system is 41 light years. The brighter component is visible through binoculars or to the naked eye under very dark skies. ...more on Wikipedia about "55 Cancri"

Beta Pictoris (β Pic / β Pictoris) is the second brightest star in the constellation Pictor. It has a total luminosity of 8.6 times that of the Sun with a surface temperature of 8250 kelvins. The star's mass is 1.7 times the solar mass while its radius is 1.4 times solar. Beta Pictoris lies at a distance of 63 light years ...more on Wikipedia about "Beta Pictoris"

Gliese 777 (GJ 777) is a 6th magnitude star in the constellation Cygnus. The system is a binary. The primary component is an yellow subgiant and the secondary component is a red dwarf. The primary component is visible to the unaided eye under very good conditions. ...more on Wikipedia about "Gliese 777"

Gliese 876 is a red dwarf star ( spectral type M4V) 15 light years from Earth in the constellation of Aquarius. It is only half the size of our Sun but it has been found to be orbited by at least two large planets which are locked in a 2:1 orbital resonance, as well as one smaller, terrestrial planet. It is so far one of only a few red dwarfs with known extrasolar planets, another being GJ 436. ...more on Wikipedia about "Gliese 876"

HD 108874 is a yellow dwarf star ( spectral type G5 V) in the constellation of Coma Berenices. It is 223 light years from Earth and has two extrasolar planets that are possibly in a 4:1 orbital resonance. ...more on Wikipedia about "HD 108874"

HD 12661 is an yellow star ( spectral type G6) in the constellation of Aries. It has two extrasolar planets. It is 120 light years from Earth and is one and a half times larger than our Sun. ...more on Wikipedia about "HD 12661"

HD 128311 is an orange main sequence star in the constellation Boötes. It is about 54 light years from the Sun. Two extrasolar planet candidates have been detected in orbit around this star. ...more on Wikipedia about "HD 128311"

HD 168443 is a yellow dwarf star of ( spectral type G5) about the mass of our Sun. It is in the constellation of Serpens Cauda, 123 light years from our solar system. It is known to be orbited by one large planet and a brown dwarf. ...more on Wikipedia about "HD 168443"

HD 169830 is a yellow dwarf star ( spectral type F8 V) in the constellation of Sagittarius, 118.46 light years from our solar system. It is known to be orbited by two large planets. ...more on Wikipedia about "HD 169830"

HD 217107 is a 6th magnitude star in the constellation of Pisces. It is a yellow subgiant ( spectral type G8 IV), a type of Sun-like star that is finishing hydrogen fusion in its core and is about to swell up becoming a red giant. ...more on Wikipedia about "HD 217107"

HD 37124 is a yellow dwarf star ( spectral type G4 IV-V) in the constellation of Taurus. It is 108 light years from Earth and has three extrasolar planets. ...more on Wikipedia about "HD 37124"

HD 38529 is a yellow dwarf star ( spectral type G4 IV) in the constellation of Orion. It is 138 light years from Earth and is orbited by one extrasolar planet and a probable brown dwarf. ...more on Wikipedia about "HD 38529"

HD 74156 is a yellow dwarf star ( spectral type G0V) in the constellation of Hydra, 210 light years from our solar system. It is known to be orbited by two large planets. ...more on Wikipedia about "HD 74156"

HD 82943 is a yellow dwarf star ( spectral type G0) in the constellation of Hydra, 89.5 light years from our solar system. It is known to be orbited by at least two large extrasolar planets which are locked in a 2:1 orbital resonance. ...more on Wikipedia about "HD 82943"

(List of stars with confirmed extrasolar planets) Sorted alphabetically. ...more on Wikipedia about "List of stars with confirmed extrasolar planets"

Mu Arae (μ Ara / μ Arae) is a 5th magnitude yellow-orange G-type star similar to our Sun. It lies about 49.8 light years away and is found in the constellation Ara (the Altar), where it is visible with the naked eye. It is estimated to have about 108% of the Sun's mass and may be about 32% larger. It has about 1.7 times the luminosity of the Sun and is suspected to be older, moving into the subgiant phase of its stellar evolution. μ Arae is metal-rich, even more so than our Sun. ...more on Wikipedia about "Mu Arae"

OGLE-TR-111 is a distant yellow or orange Sunlike dwarf star in the star fields in the constellation of Carina. Being a magnitude 15.55 star located at a distance of about 5000 light years it was not remarkable in any way and was not listed in any star catalogues. ...more on Wikipedia about "OGLE-TR-111"

A planetary system consists of the various non- stellar objects orbiting a star such as planets, moons, asteroids, meteoroids, comets, and cosmic dust. Collectively, one or more stars and their planetary systems form a star system. Our own planetary system, which contains Earth, together with the Sun comprise a unique star system: the solar system. ...more on Wikipedia about "Planetary system"

A protoplanetary disc (or proplyd) is an accretion disc surrounding a T Tauri star. They differ from the discs surrounding the primary components of close binary systems in their size and temperature. Protoplantary discs have radii up to 1000 astronomical units and are rather cool. Only their innermost parts reach temperatures above 1000 kelvins. They are very often accompanied by jets. ...more on Wikipedia about "Protoplanetary disc"

PSR 1257+12 (also catalogued as PSR B1257+12, PSR 1300+1240 and PSR J1300+1240) is a pulsar located 2630 light years from Earth. It is believed to be orbited by at least three planets. These were the first extrasolar planets ever discovered. ...more on Wikipedia about "PSR 1257+12" If you like you could tell us your opinion about shortopedia Planetary_systems

Upsilon Andromedae (also "υ And" or "υ Andromedae") is a binary star, approximately 44 light-years from Earth, and approximately 3 billion years old, two thirds the age of our Sun. Viewed from Earth, υ Andromedae is in the Andromeda Constellation, and is about 10 degrees east of the Andromeda Galaxy. The main star is rather similar to the sun but slightly hotter and brighter, of spectral type F8V. ...more on Wikipedia about "Upsilon Andromedae"

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