EGGR 566

Other names: 0322-019, LHS 1547, G 77-50, G77-50

Parameter Unit Holberg et al. 2016 Ferrario et al. 2015 Farihi et al. 2008 Simbad
Right ascension 03 25 11.03
Declination -01 49 14.02
Spectral type DAZ9.9 DAZ DAZ
Effective temperature [K] 5195.0 5310.0 5220.0
log(g) [cgs] 8.08
Mass [M☉] 0.63 0.6
log(Luminosity) [L☉]
Cooling age [Gyr] 5.2400
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) -11.36
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 59.50
Distance [pc] 16.81
Composition H He
Proper motion (right ascension) [mas/yr] 241.0
Proper motion (declination) [mas/yr] -876.0
Variability
Magnetic yes
Db [MG] 0.12 *
Infrared excess (disk)
Binarity DDu DDu
B magnitude 16.80
V magnitude 16.22 16.12 16.22
R magnitude
I magnitude
J magnitude 14.76
H magnitude 14.44
K magnitude 14.38
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude

* Constant surface field

Special notes:

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.