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Stellar HostProfile

GJ 720 A

M0.5 V • 15.56 pc

Records

5

literature rows

Planets

1

system count

References

6

distinct source labels

HIP: HIP 91128TIC: TIC 122958010

Approximate color

from effective temperature

Canonical Summary

Adopted host values from one source row

Values come from the row with the most populated summary measurements. Missing values stay missing. Ranges and counts describe all source rows.

Stellar source: González-Álvarez et al. 2021 • System source: TICv8

Temperature

3837 K

3827 to 3849

3 values • 3 distinct

Mass

0.57 Msun

0.51 to 0.58

3 values • 3 distinct

Radius

0.56 Rsun

0.56 to 0.61

3 values • 3 distinct

Luminosity

-1.22 log(Lsun)

-1.22 to -1.16

3 values • 3 distinct

Distance

15.56 pc

single adopted value

5 values • 1 distinct

Spectral Type

M0.5 V

Multiple classifications reported

M0 (1), M0.5 V (1), M2 (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.56 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

GJ 720 A

0.56 R☉

System Layout

Known planets

1 planets linked to this host

GJ 720 A b

Radial Velocity

◌

Discovery

2021

Period

19.47 days

Radius

—

Mass

13.64 M⊕

Eq. Temp

401 K

GJ 720 A and Its Planet

GJ 720 A is an M-type dwarf, a small, cool red star, located 50.7 light-years away. Its spectral type is M0.5 V, and it has a reported mass of 0.57 solar masses, a radius of 0.56 solar radii, and a temperature of 3840 K. Each of these stellar measurements is smaller or cooler than the corresponding value for the Sun.

One planet orbits this host. GJ 720 A b was discovered in 2021 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. Its minimum mass is 13.6 Earth masses, a lower bound on its true mass and larger than Earth's. The planet completes one orbit every 19.5 days.

Provenance

Underlying measurements and references

Download JSONDownload CSV

Evidence Summary

Rows

5

Stellar refs

5

System refs

1

Distancestable

5 values • 1 distinct

Parallaxstable

5 values • 1 distinct

Temperaturedisputed

3 values • 3 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

3 values • 3 distinct

Luminositydisputed

3 values • 3 distinct

Surface Gravitydisputed

2 values • 2 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typedisputed

3 values • 3 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
—————M015.56Hawley et al. 1996TICv8
38490.510.61—-1.16M215.56Turnbull 2015TICv8
38370.570.56—-1.22M0.5 V15.56González-Álvarez et al. 2021TICv8
——————15.56Duncan et al. 1991TICv8
38270.580.59—-1.17—15.56TICv8TICv8