GJ 3889

Other names: WD 1503-070, GD 175

Parameter Unit Gianninas et al. 2011 Bergeron et al. 2001 Simbad
Right ascension 15 05 49.32
Declination -07 14 40.86
Spectral type DA DA
Effective temperature [K] 6920 6990
log(g) [cgs] 9.56 8.17
Mass [M] 1.35 0.70
log(Luminosity) [L] -3.56
Age [Gyr] 2.02
log(H/He)
log(C/He)
log(Ca/He)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Ca/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 38.50 39.10
Distance [pc] 7.00 25.97
Composition H H
Proper motion (right ascension) [mas/yr] -204.0
Proper motion (declination) [mas/yr] -20.0
Variability
Magnetic yes
Has a disc
B magnitude 16.28 16.27
V magnitude 15.88 15.89
R magnitude 15.60
I magnitude 15.33
J magnitude 15.07 15.08
H magnitude 14.93 14.99
K magnitude 14.91 14.85
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude

Spectra

Absorption lines

Controls

Normalize at:

Range:

x: to
y: to

Spectra available: