* tau Gem b (Q91873147)

Four Substellar Companions Found Around K Giant Stars

brown dwarf

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

star

1 reference

unconfirmed exoplanet

1 reference

mass

20.6 Jupiter mass

1 reference

time of discovery or invention

TIC 68984421b

1 reference

2004

1 reference

July 2013

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

2 references

inferred from equatorial coordinates

constellation

Gemini

1 reference

based on heuristic

companion of

Tau Geminorum

0 references

parent astronomical body

3 references

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

object stated in reference as

tau Gem

object stated in reference as

tau Gem

argument of periapsis

137.4±0.3 degree

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

M sin i

20.6 Jupiter mass

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

18.1 Jupiter mass

1 reference

Four Substellar Companions Found Around K Giant Stars

orbital eccentricity

0.031±0.009

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

orbital period

305 day

1 reference

Four Substellar Companions Found Around K Giant Stars

305.5±0.1 day

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

semi-major axis of an orbit

1.17 astronomical unit

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

parallax

10.16±0.25 milliarcsecond

2 references

Validation of the new Hipparcos reduction

declination component of proper motion

−48.28±0.425 milliarcsecond per year

1 reference

Gaia Data Release 2

−48.92±0.17 milliarcsecond per year

2 references

Validation of the new Hipparcos reduction

right ascension component of proper motion

−31.494±0.493 milliarcsecond per year

1 reference

Gaia Data Release 2

−31.21±0.28 milliarcsecond per year

2 references

Validation of the new Hipparcos reduction

4 references

right ascension

107.7847232 degree

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

declination

30.2449545 degree

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii

time of periapsis

2,453,270.7±14.8 Julian day

epoch

J2000.0

1 reference

Precise radial velocities of giant stars. V. A brown dwarf and a planet orbiting the K giant stars {tau} Geminorum and 91 Aquarii