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Stellar HostProfile

GJ 900 A

M0 • 20.81 pc

Records

6

literature rows

Planets

1

system count

References

6

distinct source labels

TIC: TIC 422618003HIP: HIP 116384

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: Turnbull 2015 • System source: TICv8

Temperature

3976 K

single adopted value

1 values • 1 distinct

Mass

0.58 Msun

0.58 to 1.08

3 values • 3 distinct

Radius

0.73 Rsun

0.72 to 0.73

2 values • 2 distinct

Luminosity

-0.92 log(Lsun)

single adopted value

1 values • 1 distinct

Distance

20.81 pc

single adopted value

6 values • 1 distinct

Spectral Type

M0

Multiple classifications reported

K7 (2), M0 (1)

Planets

1

Stable across source rows

1

Scale Comparison

Radius against the Sun

Current adopted radius: 0.73 R☉ • circles scaled linearly by radius

Sun

1.0 R☉ baseline

GJ 900 A

0.73 R☉

System Layout

Known planets

1 planets linked to this host

GJ 900 b

Imaging

◌

Discovery

2024

Period

—

Radius

—

Mass

3496.1 M⊕

Eq. Temp

—

GJ 900 A and Its Massive Imaging-Discovered Planet

GJ 900 A is a cool red dwarf of spectral type M0 lying 67.9 light-years away. Its reported mass estimate is 0.58 solar masses and its reported radius estimate is 0.73 solar radii, both smaller than the Sun's. The star's reported temperature of 3980 K is cooler than the Sun's. One planet is known to orbit this host.

That planet, GJ 900 b, was found by imaging in 2024. Its reported mass estimate is 3500 Earth masses, larger than Earth's and roughly 11 times Jupiter's mass. No orbital period is reported for GJ 900 b.

Provenance

Underlying measurements and references

Download JSONDownload CSV

Evidence Summary

Rows

6

Stellar refs

5

System refs

1

Distancestable

6 values • 1 distinct

Parallaxstable

6 values • 1 distinct

Temperaturestable

1 values • 1 distinct

Massdisputed

3 values • 3 distinct

Radiusdisputed

2 values • 2 distinct

Agestable

1 values • 1 distinct

Luminositystable

1 values • 1 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
—0.670.72———20.81TICv8TICv8
—1.08—0.20—K720.81Rothermich et al. 2024TICv8
——————20.81Duncan et al. 1991TICv8
—————K720.81Hawley et al. 1996TICv8
39760.580.73—-0.92M020.81Turnbull 2015TICv8
——————20.81Duncan et al. 1991TICv8