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Catalog / GJ 34 / eta Cassiopei B

eta Cassiopei B

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eta Cassiopei B

GJ 34 B · GJ 34 · LHS 122 · recons:gj-34:b · Gaia DR3 425040000962497792
Distance
5.927 pc · 19.33 ly
Spectral type
K7.0 V (RECONS)
Teff
4050 K (spectral type (Pecaut & Mamajek 2013))
Magnitudes
V 7.21 · G 6.762 · BP−RP 1.754
Parallax
168.719 mas ± 0.022 (Gaia DR3)
Gaia source_id
425040000962497792
RECONS name
GJ 34 B
RECONSGaia DR3

Identity & provenance

Stable ID
gaia-dr3:425040000962497792
Primary name
eta Cassiopei B · RECONS common name
Common name
eta Cassiopei B
RECONS name
GJ 34 B
RECONS system
GJ 34 (rank #75)
Component
B
LHS
122
Gaia source_id
425040000962497792
Gaia designation
Gaia DR3 425040000962497792
Source catalogs
RECONS+Gaia DR3
Cross-match
matched (13.25″, 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
12.28118 ° · Gaia DR3
Dec
57.81574 ° · Gaia DR3
Reference epoch
J2016
Galactic l, b
122.62270 °, -5.05462 °
XYZ (equatorial)
3.085, 0.672, 5.016 pc
Proper motion
1144.69, -469.67 mas/yr · Gaia DR3
Radial velocity
10.33 km/s

Distance

Distance
5.927 pc · 19.33 ly · inverse parallax
Parallax (adopted)
168.7186 mas ± 0.0216 · Gaia DR3
Parallax (RECONS)
168.23 mas
Parallax (Gaia DR3)
168.7186 mas
RECONS vs Gaia
0.29 %

Photometry & astrophysics

Spectral type
K7.0 V · RECONS
V
7.21
M_V (RECONS)
8.34
G / BP / RP
6.762 / 7.610 / 5.856
BP − RP
1.754
Teff (GSP-Phot)
unknown
log g / [M/H]
unknown / unknown
Mass
0.600 M☉
RUWE
1.04
Non-single star
0
Variability flag
NOT_AVAILABLE
Planets
0

Render parameters (star_params)

Teff
4050 K · spectral type (Pecaut & Mamajek 2013)
Absolute mag
7.898 (G)
Bolometric corr.
-0.462
Luminosity
0.08352 L☉
Radius
0.587 R☉ · Gaia G + parallax + BC_G (Andrae 2018)
Disk radius
0.5876
Limb darkening u1, u2
0.5337, 0.2371
Granulation amp / freq
0.0654 / 14.694
Variability
none
Seed
2528862810

Notes: orbit 12"