Stellar HostProfile

KOI-4777

Unclassified star • 172.2 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 158427808

Approximate color

from effective temperature

Stellar source: Cañas et al. 2022 • System source: TICv8

Temperature

3515 K

3396 to 3732

7 values • 4 distinct

Mass

0.41 Msun

0.28 to 0.41

6 values • 3 distinct

Radius

0.40 Rsun

0.28 to 0.77

7 values • 4 distinct

Age

4 Gyr

single adopted value

1 values • 1 distinct

Distance

172.2 pc

single adopted value

9 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

KOI-4777

0.40 R☉

Discovery

2022

Period

0.41 days

Radius

0.51 R⊕

Mass

99.20 M⊕

Eq. Temp

1180 K

KOI-4777 and Its Sub-Earth Planet

KOI-4777 is a star 562 light-years away with a single known planet. The star is estimated to be 4 billion years old, with a reported mass of 0.41 solar masses and a radius of 0.4 solar radii. Its temperature is 3520 K. The star's reported mass and radius estimates are smaller than the Sun's, and its reported temperature is cooler than the Sun's.

The planet KOI-4777.01 was discovered by transit in 2022, when it passed in front of its star from our viewpoint and caused a small dip in observed brightness. It is classified as a Sub-Earth, meaning its radius is smaller than Earth's, and its reported radius estimate of 0.51 Earth radii reflects that. It completes an orbit, or year, in 0.412 days. Its mass is reported as an upper limit of 99.2 Earth masses.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

9 values • 1 distinct

Parallaxstable

9 values • 1 distinct

Temperaturedisputed

7 values • 4 distinct

Massdisputed

6 values • 3 distinct

Radiusdisputed

7 values • 4 distinct

Agestable

1 values • 1 distinct

Luminositystable

1 values • 1 distinct

Surface Gravitydisputed

7 values • 4 distinct

Metallicitydisputed

6 values • 3 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
—	—	—	—	—	—	172.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
3527	0.40	0.41	—	-1.64	—	172.2	TICv8	TICv8
3732	—	0.77	—	—	—	172.2	Latham et al. 2005	TICv8
3396	0.28	0.28	—	—	—	172.2	Q1-Q17 DR24 KOI Table	TICv8
—	—	—	—	—	—	172.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
3515	0.41	0.40	4	—	—	172.2	Cañas et al. 2022	TICv8
3396	0.28	0.28	—	—	—	172.2	Q1-Q12 KOI Table	TICv8
3396	0.28	0.28	—	—	—	172.2	Q1-Q16 KOI Table	TICv8
3396	0.28	0.28	—	—	—	172.2	Q1-Q16 KOI Table	TICv8

KOI-4777

Adopted host values from one source row

Radius against the Sun

Known planets

KOI-4777.01

KOI-4777 and Its Sub-Earth Planet

Underlying measurements and references