Stellar HostProfile

Kepler-303

Unclassified star • 209.7 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 164460208

Approximate color

from effective temperature

Stellar source: Morton et al. 2016 • System source: TICv8

Temperature

4070 K

3944 to 4212

21 values • 8 distinct

Mass

0.52 Msun

0.51 to 0.64

15 values • 6 distinct

Radius

0.51 Rsun

0.48 to 0.66

21 values • 10 distinct

Age

3.31 Gyr

3.31 to 13.90

4 values • 3 distinct

Distance

209.7 pc

single adopted value

24 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

Kepler-303

0.51 R☉

Discovery

2014

Period

1.94 days

Radius

0.89 R⊕

Mass

—

Eq. Temp

—

Discovery

2014

Period

7.06 days

Radius

1.14 R⊕

Mass

—

Eq. Temp

—

Kepler-303 and Its Two Known Planets

Kepler-303 is a star 684 light-years away with a spectral type of M0 V, making it a small, cool red dwarf. Its mass is 0.52 solar masses and its radius is 0.51 solar radii, both smaller than the Sun's. The star is 3.31 billion years old and has a temperature of 4070 K, cooler than the Sun's. Two planets are known to orbit this host.

Kepler-303 b is a Sub-Earth discovered by transit in 2014. Its radius is 0.89 Earth radii, smaller than Earth's, and its orbital period is 1.94 days. Kepler-303 c is an Earth-like planet, also discovered by transit in 2014. Its radius is 1.14 Earth radii, larger than Earth's, and its orbital period is 7.06 days. Among the listed planets, Kepler-303 b has the shortest year and the smallest radius, while Kepler-303 c has the longest year and the largest radius.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

24 values • 1 distinct

Parallaxstable

24 values • 1 distinct

Temperaturedisputed

21 values • 8 distinct

Massdisputed

15 values • 6 distinct

Radiusdisputed

21 values • 10 distinct

Agedisputed

4 values • 3 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

17 values • 7 distinct

Metallicitydisputed

12 values • 5 distinct

Spectral Typestable

1 values • 1 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
4103	0.59	0.56	—	—	—	209.7	Batalha et al. 2013	TICv8
3944	0.52	0.51	—	—	—	209.7	Q1-Q17 DR24 KOI Table	TICv8
—	—	—	—	—	—	209.7	Q1-Q17 DR25 Supplemental KOI Table	TICv8
4103	—	0.66	—	—	—	209.7	Latham et al. 2005	TICv8
3944	0.52	0.51	—	—	—	209.7	Q1-Q12 KOI Table	TICv8
4066.6	0.64	0.62	—	-1.02	—	209.7	TICv8	TICv8
3944	0.52	0.51	—	—	—	209.7	Q1-Q12 KOI Table	TICv8
—	—	—	—	—	—	209.7	Q1-Q17 DR25 Supplemental KOI Table	TICv8
4212	0.57	0.55	13.90	—	—	209.7	Q1-Q8 KOI Table	TICv8
4045	0.64	0.60	—	-1.07	—	209.7	Mann et al. 2013	TICv8
4042	0.51	0.49	—	—	—	209.7	Q1-Q17 DR25 KOI Table	TICv8
3944	0.52	0.51	—	—	—	209.7	Q1-Q16 KOI Table	TICv8
3944	—	0.48	—	—	—	209.7	Rowe et al. 2014	TICv8
4045	—	0.59	—	—	—	209.7	Berger et al. 2018	TICv8
—	—	—	7.71	—	—	209.7	Gaidos et al. 2024	TICv8
4070	0.52	0.51	3.31	—	—	209.7	Morton et al. 2016	TICv8
4212	0.57	0.55	13.90	—	—	209.7	Q1-Q8 KOI Table	TICv8
4042	0.51	0.49	—	—	—	209.7	Q1-Q17 DR25 KOI Table	TICv8
4134.7	—	0.58	—	-1.05	—	209.7	Gaia DR2	TICv8
3944	0.52	0.51	—	—	—	209.7	Q1-Q17 DR24 KOI Table	TICv8
3944	0.52	0.51	—	—	M0 V	209.7	Muirhead et al. 2012	TICv8
4103	—	0.56	—	—	—	209.7	Q1-Q6 KOI Table	TICv8
3944	0.52	0.51	—	—	—	209.7	Q1-Q16 KOI Table	TICv8
4103	—	0.56	—	—	—	209.7	Q1-Q6 KOI Table	TICv8

Kepler-303

Adopted host values from one source row

Radius against the Sun

Known planets

Kepler-303 b

Kepler-303 c

Kepler-303 and Its Two Known Planets

Underlying measurements and references