Catalog / GJ 440 / WD 1142-645

WD 1142-645

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WD 1142-645

GJ 440 · LHS 43 · recons:gj-440 · Gaia DR3 5332606522595645952

Distance: 4.637 pc · 15.12 ly
Spectral type: DQ6 (RECONS)
T_eff: 8400 K (spectral type (Pecaut & Mamajek 2013))
Magnitudes: V 11.50 · G 11.423 · BP−RP 0.286
Parallax: 215.675 mas ± 0.018 (Gaia DR3)
Gaia source_id: 5332606522595645952
RECONS name: GJ 440

RECONSGaia DR3

Identity & provenance

Stable ID: gaia-dr3:5332606522595645952
Primary name: WD 1142-645 · RECONS common name
Common name: WD 1142-645
RECONS name: GJ 440
RECONS system: GJ 440 (rank #39)
Component: —
LHS: 43
Gaia source_id: 5332606522595645952
Gaia designation: Gaia DR3 5332606522595645952
Source catalogs: RECONS+Gaia DR3
Cross-match: matched (0.45″, 1 candidates)
Match note: —

Position

RA: 176.45665 ° · Gaia DR3
Dec: -64.84305 ° · Gaia DR3
Reference epoch: J2016
Galactic l, b: 296.02871 °, -2.85434 °
XYZ (equatorial): -1.967, 0.122, -4.197 pc
Proper motion: 2661.64, -344.93 mas/yr · Gaia DR3
Radial velocity: unknown

Distance

Distance: 4.637 pc · 15.12 ly · inverse parallax
Parallax (adopted): 215.6753 mas ± 0.0181 · Gaia DR3
Parallax (RECONS): 216.12 mas
Parallax (Gaia DR3): 215.6753 mas
RECONS vs Gaia: 0.21 %

Photometry & astrophysics

Spectral type: DQ6 · RECONS
V: 11.50
M_V (RECONS): 13.17
G / BP / RP: 11.423 / 11.516 / 11.230
BP − RP: 0.286
Teff (GSP-Phot): unknown
log g / [M/H]: unknown / unknown
Mass: 0.500 M☉
RUWE: 0.87
Non-single star: 0
Variability flag: NOT_AVAILABLE
Planets: 0

Render parameters (star_params)

Teff: 8400 K · spectral type (Pecaut & Mamajek 2013)
Absolute mag: 13.092 (G)
Bolometric corr.: 0.008
Luminosity: 4.527e-4 L☉
Radius: 0.01005 R☉ · Gaia G + parallax + BC_G (Andrae 2018)
Disk radius: 0.3403
Limb darkening u1, u2: 0.3469, 0.2578
Granulation amp / freq: 0.0119 / 19.994
Variability: none
Seed: 1143102368