Catalog / GJ 551 / alpha Centauri A

alpha Centauri A

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alpha Centauri A

GJ 559 A · GJ 551 · LHS 50

Distance: 1.338 pc · 4.36 ly
Spectral type: G2.0 V (RECONS)
T_eff: 5770 K (spectral type (Pecaut & Mamajek 2013))
Magnitudes: V 0.01 · G unknown · BP−RP unknown
Parallax: 747.230 mas ± 1.170 (RECONS)
Gaia source_id: — (not in Gaia DR3 subset)
RECONS name: GJ 559 A

RECONS

Identity & provenance

Stable ID: recons:gj-559:a
Primary name: alpha Centauri A · RECONS common name
Common name: alpha Centauri A
RECONS name: GJ 559 A
RECONS system: GJ 551 (rank #1)
Component: A
LHS: 50
Gaia source_id: —
Gaia designation: —
Source catalogs: RECONS
Cross-match: recons_only
Match note: —

Position

RA: 219.86854 ° · recons propagated
Dec: -60.83174 ° · recons propagated
Reference epoch: J2016
Galactic l, b: 315.72014 °, -0.67098 °
XYZ (equatorial): -0.501, -0.418, -1.169 pc
Proper motion: -3678.26, 484.25 mas/yr · RECONS
Radial velocity: unknown

Distance

Distance: 1.338 pc · 4.36 ly · inverse parallax
Parallax (adopted): 747.2300 mas ± 1.1700 · RECONS
Parallax (RECONS): 747.23 mas
Parallax (Gaia DR3): unknown
RECONS vs Gaia: —

Photometry & astrophysics

Spectral type: G2.0 V · RECONS
V: 0.01
M_V (RECONS): 4.38
G / BP / RP: unknown / unknown / unknown
BP − RP: unknown
Teff (GSP-Phot): unknown
log g / [M/H]: unknown / unknown
Mass: 1.140 M☉
RUWE: unknown
Non-single star: —
Variability flag: —
Planets: 0

Render parameters (star_params)

Teff: 5770 K · spectral type (Pecaut & Mamajek 2013)
Absolute mag: 4.380 (V)
Bolometric corr.: -0.081
Luminosity: 1.502 L☉
Radius: 1.226 R☉ · RECONS M_V + BC_V (Flower 1996 / Torres 2010)
Disk radius: 0.6324
Limb darkening u1, u2: 0.4700, 0.2300
Granulation amp / freq: 0.0600 / 13.734
Variability: none
Seed: 2716378585