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Catalog / GJ 338 / GJ 338 B

GJ 338 B

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GJ 338 B

GJ 338 · LHS 261 · recons:gj-338:b · Gaia DR3 1022456104850892928
Distance
6.334 pc · 20.66 ly
Spectral type
K7.0 V (RECONS)
Teff
4050 K (spectral type (Pecaut & Mamajek 2013))
Magnitudes
V 7.70 · G 7.054 · BP−RP 1.846
Parallax
157.882 mas ± 0.021 (Gaia DR3)
Gaia source_id
1022456104850892928
RECONS name
GJ 338 B
RECONSGaia DR3

Identity & provenance

Stable ID
gaia-dr3:1022456104850892928
Primary name
GJ 338 B · recons cns name
Common name
—
RECONS name
GJ 338 B
RECONS system
GJ 338 (rank #82)
Component
B
LHS
261
Gaia source_id
1022456104850892928
Gaia designation
Gaia DR3 1022456104850892928
Source catalogs
RECONS+Gaia DR3
Cross-match
matched (0.53″, 2 candidates)
Match note
ambiguous: 2 Gaia candidates within 30 arcsec; resolved by brightness rank / separation; contested: Gaia source was a candidate for 2 RECONS components

Position

RA
138.59131 ° · Gaia DR3
Dec
52.68343 ° · Gaia DR3
Reference epoch
J2016
Galactic l, b
164.94030 °, 42.66595 °
XYZ (equatorial)
-2.880, 2.540, 5.037 pc
Proper motion
-1573.04, -659.91 mas/yr · Gaia DR3
Radial velocity
11.97 km/s

Distance

Distance
6.334 pc · 20.66 ly · inverse parallax
Parallax (adopted)
157.8825 mas ± 0.0211 · Gaia DR3
Parallax (RECONS)
163.73 mas
Parallax (Gaia DR3)
157.8825 mas
RECONS vs Gaia
3.70 %

Photometry & astrophysics

Spectral type
K7.0 V · RECONS
V
7.70
M_V (RECONS)
8.77
G / BP / RP
7.054 / 7.959 / 6.113
BP − RP
1.846
Teff (GSP-Phot)
unknown
log g / [M/H]
unknown / unknown
Mass
0.600 M☉
RUWE
1.12
Non-single star
0
Variability flag
NOT_AVAILABLE
Planets
0

Render parameters (star_params)

Teff
4050 K · spectral type (Pecaut & Mamajek 2013)
Absolute mag
8.046 (G)
Bolometric corr.
-0.462
Luminosity
0.07286 L☉
Radius
0.5482 R☉ · Gaia G + parallax + BC_G (Andrae 2018)
Disk radius
0.5835
Limb darkening u1, u2
0.5337, 0.2371
Granulation amp / freq
0.0654 / 14.783
Variability
none
Seed
3786099814

Notes: orbit 17"