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Stellar HostProfile

GJ 887

M1 V • 3.29 pc

Records

12

literature rows

Planets

4

system count

References

14

distinct source labels

HD: HD 217987HIP: HIP 114046TIC: TIC 155315739

Approximate color

from effective temperature

Canonical Summary

Adopted host values from all rows

Numeric fields use the median of non-null measurements. Disagreement stays visible through ranges, counts, and provenance.

Temperature

3684 K

3667 to 3957.4

6 values • 5 distinct

Mass

0.49 Msun

0.44 to 0.54

4 values • 4 distinct

Radius

0.49 Rsun

0.47 to 0.50

4 values • 4 distinct

Age

2.89 Gyr

2.88 to 2.90

2 values • 2 distinct

Luminosity

-1.42 log(Lsun)

-1.43 to -1.38

4 values • 3 distinct

Distance

3.29 pc

3.29 to 3.29

12 values • 2 distinct

Spectral Type

M1 V

Multiple classifications reported

M1 V (2), M0.5 (1), M1.0V (1), M2/3 V (1), Map (1)

Planets

4

Stable across source rows

4

System Layout

Known planets

4 planets linked to this host

GJ 887 e

Radial Velocity

Discovery

2026

Period

4.42 days

Radius

Mass

1.46 M⊕

Eq. Temp

544 K

GJ 887 b

Radial Velocity

Discovery

2020

Period

9.26 days

Radius

Mass

3.90 M⊕

Eq. Temp

426 K

GJ 887 d

Radial Velocity

Discovery

2026

Period

50.77 days

Radius

Mass

6.10 M⊕

Eq. Temp

241 K

GJ 887 c

Radial Velocity

Discovery

2020

Period

21.79 days

Radius

Mass

7.60 M⊕

Eq. Temp

352 K

Provenance

Underlying measurements and references

Evidence Summary

Rows

12

Stellar refs

12

System refs

2

Distancedisputed

12 values • 2 distinct

Parallaxdisputed

12 values • 2 distinct

Temperaturedisputed

6 values • 5 distinct

Massdisputed

4 values • 4 distinct

Radiusdisputed

4 values • 4 distinct

Agedisputed

2 values • 2 distinct

Luminositydisputed

4 values • 3 distinct

Surface Gravitydisputed

3 values • 3 distinct

Metallicitydisputed

3 values • 2 distinct

Spectral Typedisputed

6 values • 5 distinct

ST TEFFST MASSST RADST AGEST LUMST SPECTYPESY DISTStellar RefSystem Ref
3.29Nordstrom et al. 2004TICv8
36880.490.472.90-1.43M1 V3.29Hartogh et al. 2026TICv8
36803.29Harada et al. 2025TICv8
3676.30.540.50-1.383.29TICv8TICv8
M2/3 V3.29Michigan Catalog, Vol. 3TICv8
Map3.29Cannon & Pickering 1918TICv8
3957.43.29Gaia DR2TICv8
36880.490.472.88-1.43M1 V3.29Jeffers et al. 2020Hipparcos and Tycho Catalogs
3.29Nidever et al. 2002TICv8
36670.440.50-1.40M1.0V3.29Turnbull 2015TICv8
M0.53.29Hawley et al. 1996TICv8
3.29Wright et al. 2004TICv8