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Catalog / GJ 820 / 61 Cygni B

61 Cygni B

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61 Cygni B

GJ 820 B · GJ 820 · LHS 63 · recons:gj-820:b · Gaia DR3 1872046574983497216
Distance
3.496 pc · 11.40 ly
Spectral type
K7.0 V (RECONS)
Teff
3890 K (Gaia GSP-Phot)
Magnitudes
V 6.03 · G 5.451 · BP−RP 1.715
Parallax
286.005 mas ± 0.029 (Gaia DR3)
Gaia source_id
1872046574983497216
RECONS name
GJ 820 B
RECONSGaia DR3

Identity & provenance

Stable ID
gaia-dr3:1872046574983497216
Primary name
61 Cygni B · RECONS common name
Common name
61 Cygni B
RECONS name
GJ 820 B
RECONS system
GJ 820 (rank #13)
Component
B
LHS
63
Gaia source_id
1872046574983497216
Gaia designation
Gaia DR3 1872046574983497216
Source catalogs
RECONS+Gaia DR3
Cross-match
matched (0.76″, 1 candidates)
Match note
—

Position

RA
316.75366 ° · Gaia DR3
Dec
38.75607 ° · Gaia DR3
Reference epoch
J2016
Galactic l, b
82.33988 °, -5.83040 °
XYZ (equatorial)
1.986, -1.868, 2.189 pc
Proper motion
4105.98, 3155.94 mas/yr · Gaia DR3
Radial velocity
-64.59 km/s

Distance

Distance
3.496 pc · 11.40 ly · inverse parallax
Parallax (adopted)
286.0054 mas ± 0.0289 · Gaia DR3
Parallax (RECONS)
286.08 mas
Parallax (Gaia DR3)
286.0054 mas
RECONS vs Gaia
0.03 %

Photometry & astrophysics

Spectral type
K7.0 V · RECONS
V
6.03
M_V (RECONS)
8.31
G / BP / RP
5.451 / 6.272 / 4.557
BP − RP
1.715
Teff (GSP-Phot)
3890 K
log g / [M/H]
4.55 / -0.48
Mass
0.630 M☉
RUWE
0.96
Non-single star
0
Variability flag
NOT_AVAILABLE
Planets
0

Render parameters (star_params)

Teff
3890 K · Gaia GSP-Phot
Absolute mag
7.733 (G)
Bolometric corr.
-0.575
Luminosity
0.1079 L☉
Radius
0.7235 R☉ · Gaia G + parallax + BC_G (Andrae 2018)
Disk radius
0.6003
Limb darkening u1, u2
0.5410, 0.2379
Granulation amp / freq
0.0660 / 14.422
Variability
none
Seed
2353055999

Notes: orbit 25"