EGGR 453

Other names: 2251-070, LHS 69

Parameter Unit Holberg et al. 2016 Simbad
Right ascension 22 53 53.39
Declination -06 46 54.41
Spectral type DZ12.6 DZ13
Effective temperature [K] 4000.0
log(g) [cgs] 8.01
Mass [M☉] 0.58
log(Luminosity) [L☉]
Cooling age [Gyr] 8.4800
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] 117.38 117.06
Distance [pc] 8.52 8.54
Composition He
Proper motion (right ascension) [mas/yr] 2477.1
Proper motion (declination) [mas/yr] -691.6
Variability
Magnetic
Db [MG]
Infrared excess (disk)
Binarity
B magnitude 17.53
V magnitude 15.66 15.66
R magnitude 15.70
I magnitude
J magnitude 14.01
H magnitude 13.69
K magnitude 13.55
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude

* Constant surface field

Special notes:

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Absorption lines

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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.