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Stellar HostProfile

GJ 9773

M3.0 V • 15.92 pc

Records

4

literature rows

Planets

1

system count

References

5

distinct source labels

TIC: TIC 468309671HIP: HIP 109638

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: Morales et al. 2025 • System source: TICv8

Temperature

3528 K

3453 to 3528

3 values • 3 distinct

Mass

0.36 Msun

0.35 to 0.37

3 values • 3 distinct

Radius

0.36 Rsun

0.36 to 0.38

3 values • 3 distinct

Distance

15.92 pc

single adopted value

4 values • 1 distinct

Spectral Type

M3.0 V

Multiple classifications reported

M3 (2), M3.0 V (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.36 R☉ (circles scaled linearly by radius)

Sun

1.0 R☉ baseline

GJ 9773

0.36 R☉

System Layout

Known planets

1 planets linked to this host

GJ 9773 b

Radial Velocity

◌

Discovery

2025

Period

2965 days

Radius

—

Mass

172.6 M⊕

Eq. Temp

—

GJ 9773 and Its Planet

GJ 9773 is an M-type main-sequence star, a small, cool red dwarf, located 51.9 light-years away. It has a reported mass estimate of 0.358 solar masses and a reported radius estimate of 0.362 solar radii, both smaller than the Sun's, and a reported temperature of 3530 K, cooler than the Sun's. One planet orbits this star.

That planet is GJ 9773 b, discovered in 2025 by the radial velocity method, which measures the wobble a planet's gravity induces in its star's motion. Its minimum mass is 173 Earth masses, a lower bound on its true mass that is larger than Earth's, and its orbital period is 2970 days.

Provenance

Underlying measurements and references

Download JSONDownload CSV

Evidence Summary

Rows

4

Stellar refs

4

System refs

1

Distancestable

4 values • 1 distinct

Parallaxstable

4 values • 1 distinct

Temperaturedisputed

3 values • 3 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

3 values • 3 distinct

Luminositydisputed

2 values • 2 distinct

Surface Gravitystable

1 values • 1 distinct

Metallicitystable

1 values • 1 distinct

Spectral Typedisputed

3 values • 2 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
35280.360.36——M3.0 V15.92Morales et al. 2025TICv8
34640.350.36—-1.70M315.92Turnbull 2015TICv8
34530.370.38—-1.74—15.92TICv8TICv8
—————M315.92Hawley et al. 1996TICv8