Stellar HostProfile

HD 100777

Unclassified star • 49.53 pc

Records

literature rows

Planets

system count

References

distinct source labels

HIP: HIP 56572TIC: TIC 49427341HD: HD 100777

Approximate color

from effective temperature

Stellar source: Ghezzi et al. 2010 • System source: TICv8

Temperature

5542 K

5532.4 to 5582

6 values • 6 distinct

Mass

1 Msun

0.83 to 1.08

6 values • 6 distinct

Radius

1.03 Rsun

1.03 to 1.06

4 values • 4 distinct

Age

5 Gyr

2 to 5.70

3 values • 3 distinct

Luminosity

-0.05 log(Lsun)

-0.05 to 0.02

5 values • 5 distinct

Distance

49.53 pc

single adopted value

9 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

HD 100777

1.03 R☉

Discovery

2007

Period

383 days

Radius

—

Mass

390.9 M⊕

Eq. Temp

—

HD 100777 and Its Single Known Planet

HD 100777 is a star located 162 light-years away. Its spectral type is G8 V, and the star is 5 billion years old, with a mass of 1 solar masses and a radius of 1.03 solar radii. Its temperature of 5540 K is cooler than the Sun's.

One planet is known to orbit this star. HD 100777 b was discovered in 2007 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. The planet has a mass of 391 Earth masses, larger than Earth's and roughly 1.23 times Jupiter's mass, and it completes one orbit every 383 days.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

9 values • 1 distinct

Parallaxstable

9 values • 1 distinct

Temperaturedisputed

6 values • 6 distinct

Massdisputed

6 values • 6 distinct

Radiusdisputed

4 values • 4 distinct

Agedisputed

3 values • 3 distinct

Luminositydisputed

5 values • 5 distinct

Surface Gravitydisputed

5 values • 5 distinct

Metallicitydisputed

5 values • 3 distinct

Spectral Typedisputed

3 values • 2 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
—	1.08	—	5.70	—	G8 V	49.53	Philipot et al. 2023	TICv8
5536	0.94	—	—	0.02	—	49.53	Sousa et al. 2008	TICv8
5532.9	0.97	1.06	—	-0.03	—	49.53	TICv8	TICv8
5533	0.83	1.04	—	—	—	49.53	Stassun et al. 2017	TICv8
5582	1.01	—	2	0.02	—	49.53	Naef et al. 2007	TICv8
—	—	—	—	—	G8 V	49.53	Michigan Catalog, Vol. 5	TICv8
5542	1	1.03	5	-0.05	—	49.53	Ghezzi et al. 2010	TICv8
5532.4	—	1.06	—	-0.02	—	49.53	Gaia DR2	TICv8
—	—	—	—	—	K0	49.53	Cannon & Pickering 1918	TICv8

HD 100777

Adopted host values from one source row

Radius against the Sun

Known planets

HD 100777 b

HD 100777 and Its Single Known Planet

Underlying measurements and references