Stellar HostProfile

HD 212771

Unclassified star • 111.2 pc

Records

literature rows

Planets

system count

References

distinct source labels

HIP: HIP 110813TIC: TIC 12723961HD: HD 212771

Approximate color

from effective temperature

Stellar source: Jofré et al. 2015 • System source: TICv8

Temperature

5085 K

5003 to 5121

7 values • 5 distinct

Mass

1.60 Msun

1.15 to 2.41

5 values • 5 distinct

Radius

4.26 Rsun

4.26 to 5.27

6 values • 6 distinct

Age

1.92 Gyr

1.92 to 6

2 values • 2 distinct

Luminosity

1.18 log(Lsun)

1.06 to 1.19

3 values • 3 distinct

Distance

111.2 pc

single adopted value

9 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HD 212771

4.26 R☉

Discovery

2009

Period

380.7 days

Radius

—

Mass

759.6 M⊕

Eq. Temp

—

HD 212771 and Its Planet

HD 212771 is a G-type star 363 light-years away. It is 1.92 billion years old, and its measurements include a mass of 1.6 solar masses, a radius of 4.26 solar radii, and a temperature of 5090 K. Its reported mass and radius estimates are larger than the Sun's, while its reported temperature is cooler than the Sun's.

One planet orbits this host. HD 212771 b was discovered in 2009 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion; repeated wobbles reveal the planet and its orbital period. This planet has a minimum mass of 760 Earth masses and an orbital period of 381 days. Its minimum mass is larger than Earth's and roughly 2.39 times Jupiter's mass.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

9 values • 1 distinct

Parallaxstable

9 values • 1 distinct

Temperaturedisputed

7 values • 5 distinct

Massdisputed

5 values • 5 distinct

Radiusdisputed

6 values • 6 distinct

Agedisputed

2 values • 2 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

5 values • 5 distinct

Metallicitydisputed

5 values • 5 distinct

Spectral Typedisputed

2 values • 2 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
5091	1.51	—	—	—	—	111.2	Mortier et al. 2013	TICv8
5069	2.41	4.55	—	—	—	111.2	Stassun et al. 2017	TICv8
5085	1.60	4.26	1.92	1.18	—	111.2	Jofré et al. 2015	TICv8
—	—	—	—	—	G8 IV	111.2	Michigan Catalog, Vol. 4	TICv8
5069	—	4.41	—	1.06	—	111.2	Gaia DR2	TICv8
5003	1.56	5.27	—	—	—	111.2	Luhn et al. 2019	TICv8
—	—	—	—	—	G5	111.2	Cannon & Pickering 1918	TICv8
5003	—	4.62	—	—	—	111.2	TICv8	TICv8
5121	1.15	5	6	1.19	—	111.2	Johnson et al. 2010	TICv8

HD 212771

Adopted host values from one source row

Radius against the Sun

Known planets

HD 212771 b

HD 212771 and Its Planet

Underlying measurements and references