Stellar HostProfile

Kepler-445

Unclassified star • 127.2 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 268060194

Approximate color

from effective temperature

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

Temperature

3369 K

3143 to 3482.1

18 values • 7 distinct

Mass

0.43 Msun

0.15 to 0.43

16 values • 8 distinct

Radius

0.42 Rsun

0.18 to 0.42

17 values • 9 distinct

Age

6.61 Gyr

single adopted value

1 values • 1 distinct

Distance

127.2 pc

single adopted value

21 values • 1 distinct

Planets

Stable across source rows

Sun

1.0 R☉ baseline

Kepler-445

0.42 R☉

Discovery

2015

Period

2.98 days

Radius

1.58 R⊕

Mass

—

Eq. Temp

—

Discovery

2015

Period

4.87 days

Radius

2.51 R⊕

Mass

—

Eq. Temp

—

Discovery

2015

Period

8.15 days

Radius

1.25 R⊕

Mass

—

Eq. Temp

—

Kepler-445: A Cool Red Dwarf and Its Three Small Worlds

Kepler-445 is an M4 star located 415 light-years away. Its spectral type indicates a small, cool red dwarf. The star has a mass of 0.43 solar masses and a radius of 0.42 solar radii, both smaller than the Sun's corresponding values. It is also cooler than the Sun, with a temperature of 3370 K, and has an age of 6.61 billion years. Three planets are known to orbit this host.

All three planets were discovered by transit in 2015, and each has a radius larger than Earth's. Kepler-445 b is a Super-Earth with a radius of 1.58 Earth radii and an orbital period of 2.98 days, the shortest year among the listed planets. Kepler-445 c is Neptune-like, with a radius of 2.51 Earth radii and a period of 4.87 days, the second-shortest year among the listed planets. It also has the largest radius among the listed planets. Kepler-445 d is Earth-like, with a radius of 1.25 Earth radii and a period of 8.15 days, the longest year among the listed planets by reported estimates. Its radius is the smallest among the listed planets.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

21 values • 1 distinct

Parallaxstable

21 values • 1 distinct

Temperaturedisputed

18 values • 7 distinct

Massdisputed

16 values • 8 distinct

Radiusdisputed

17 values • 9 distinct

Agestable

1 values • 1 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

13 values • 5 distinct

Metallicitydisputed

12 values • 4 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
—	—	—	—	—	—	127.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
3143	0.28	0.30	—	-2.10	—	127.2	TICv8	TICv8
3327	0.17	0.19	—	—	—	127.2	Q1-Q12 KOI Table	TICv8
3157	0.15	0.18	—	—	—	127.2	Q1-Q17 DR25 KOI Table	TICv8
3327	0.17	0.19	—	—	—	127.2	Q1-Q17 DR24 KOI Table	TICv8
3157	0.18	0.21	—	—	M4	127.2	Muirhead et al. 2015	TICv8
3327	0.17	0.19	—	—	—	127.2	Q1-Q12 KOI Table	TICv8
3327	0.17	0.19	—	—	—	127.2	Q1-Q16 KOI Table	TICv8
3327	0.17	0.19	—	—	—	127.2	Q1-Q17 DR24 KOI Table	TICv8
3157	0.16	0.19	—	-2.47	—	127.2	Mann et al. 2013	TICv8
3369	0.43	0.42	6.61	—	—	127.2	Morton et al. 2016	TICv8
3327	0.17	0.19	—	—	—	127.2	Q1-Q17 DR24 KOI Table	TICv8
3157	—	0.30	—	—	—	127.2	Berger et al. 2018	TICv8
3157	0.15	0.18	—	—	—	127.2	Q1-Q17 DR25 KOI Table	TICv8
3240	0.21	0.27	—	—	—	127.2	Q1-Q8 KOI Table	TICv8
—	—	—	—	—	—	127.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
3219	0.33	0.35	—	-1.94	—	127.2	Mann et al. 2017	TICv8
3240	0.21	0.27	—	—	—	127.2	Q1-Q8 KOI Table	TICv8
3327	0.17	0.19	—	—	—	127.2	Q1-Q16 KOI Table	TICv8
—	—	—	—	—	—	127.2	Q1-Q17 DR25 Supplemental KOI Table	TICv8
3482.1	—	—	—	—	—	127.2	Gaia DR2	TICv8

Kepler-445

Adopted host values from one source row

Radius against the Sun

Known planets

Kepler-445 b

Kepler-445 c

Kepler-445 d

Kepler-445: A Cool Red Dwarf and Its Three Small Worlds

Underlying measurements and references