LAWD 25

Other names: 0738-172, LHS 235

Parameter Unit Holberg et al. 2016 Simbad
Right ascension 07 40 20.79
Declination -17 24 49.20
Spectral type DAZ6.6 DAZ6
Effective temperature [K] 7654.0
log(g) [cgs] 7.92
Mass [M☉] 0.62
log(Luminosity) [L☉]
Cooling age [Gyr] 1.4400
log(H/He)
log(C/He)
log(Ca/He)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 109.94 109.79
Distance [pc] 9.10 9.11
Composition He
Proper motion (right ascension) [mas/yr] 1130.0
Proper motion (declination) [mas/yr] -558.0
Variability
Magnetic
Db [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 13.36
V magnitude 13.02 13.06
R magnitude 12.89
I magnitude 12.70
J magnitude 12.65
H magnitude 12.61
K magnitude 12.58
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude

* Constant surface field

Special notes:

Spectra

Absorption lines

Controls

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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.