Stellar HostProfile

GJ 740

M1.0 V • 11.10 pc

Records

literature rows

Planets

system count

References

distinct source labels

TIC: TIC 227642705HD: HD 176029HIP: HIP 93101

Approximate color

from effective temperature

Stellar source: Toledo-Padrón et al. 2021 • System source: TICv8

Temperature

3913 K

3784 to 3920

4 values • 4 distinct

Mass

0.58 Msun

0.50 to 0.58

3 values • 3 distinct

Radius

0.56 Rsun

0.56 to 0.61

4 values • 4 distinct

Luminosity

-1.21 log(Lsun)

-1.21 to -1.16

4 values • 4 distinct

Distance

11.10 pc

single adopted value

9 values • 1 distinct

Spectral Type

M1.0 V

Multiple classifications reported

K5 (1), M0.5 (1), M1.0 V (1), M2V (1)

Planets

Stable across source rows

Sun

1.0 R☉ baseline

GJ 740

0.56 R☉

Discovery

2021

Period

2.38 days

Radius

—

Mass

2.96 M⊕

Eq. Temp

829 K

GJ 740 and Its Lone Known Planet

GJ 740 is an M1.0 V star, a small, cool red dwarf, located 36.2 light-years away. It has a reported mass of 0.58 solar masses and a radius of 0.56 solar radii, both smaller than the Sun's corresponding values. Its temperature is 3910 K, cooler than the Sun's. One planet is known to orbit this host.

That planet, GJ 740 b, was discovered in 2021 using the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. Its minimum mass is 2.96 Earth masses, larger than Earth's, meaning the true mass is at least this much. The planet completes one orbit in 2.38 days.

Evidence Summary

Rows

Stellar refs

System refs

Distancestable

9 values • 1 distinct

Parallaxstable

9 values • 1 distinct

Temperaturedisputed

4 values • 4 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

4 values • 4 distinct

Luminositydisputed

4 values • 4 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typedisputed

4 values • 4 distinct

ST TEFF	ST MASS	ST RAD	ST AGE	ST LUM	ST SPECTYPE	SY DIST	Stellar Ref	System Ref
—	—	—	—	—	—	11.10	Wright et al. 2004	TICv8
3789	0.50	0.61	—	-1.16	M2V	11.10	Turnbull 2015	TICv8
3784	0.58	0.59	—	-1.19	—	11.10	TICv8	TICv8
3920	—	0.56	—	-1.17	—	11.10	Gaia DR2	TICv8
—	—	—	—	—	—	11.10	Nordstrom et al. 2004	TICv8
—	—	—	—	—	M0.5	11.10	Hawley et al. 1996	TICv8
—	—	—	—	—	K5	11.10	Cannon & Pickering 1918	TICv8
3913	0.58	0.56	—	-1.21	M1.0 V	11.10	Toledo-Padrón et al. 2021	TICv8
—	—	—	—	—	—	11.10	Duncan et al. 1991	TICv8

GJ 740

Adopted host values from one source row

Radius against the Sun

Known planets

GJ 740 b

GJ 740 and Its Lone Known Planet

Underlying measurements and references