GD 821

All names: WD 0114-034, LAMOST J011658.83-031054.4, GALEX J011658.7-031053, Gaia DR3 2483669331171909120, PB 8665, GD 821, WD0114-034, EGGR 515, Gaia DR2 2483669331171909120, SDSS J011658.83-031054.4, Gaia EDR3 2483669331171909120, USNO-B1.0 0868-00012635

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Gaia DR2 Stilism Guo et al. 2015 Gianninas et al. 2011 Koester et al. 2009 Koester et al. 2001 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 01 16 58.86 (0.09) 01 16 58.86 (0.1) 01 16 58.80 01 16 58.86 01 16 58.82 (0.09) 01 16 58.51
Declination -03 10 54.43 (0.08) -03 10 54.43 (0.07) -03 10 56.00 -03 10 54.43 -03 10 54.48 (0.08) -03 10 59.88
Spectral type DAZ DA DA DA DA2.5 DA
Effective temperature [K] 20390.0 (411) 19460.0 (99) 10377.0 (29) 19760.0 (675)
log(g) [cgs] 7.92 (0.06) 7.77 (0.02) 8.38 (0.03) 7.93 (0.04)
Mass [M] 0.58 (0.03) 0.85 0.586 (0.03)
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
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(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 5.08 (0.1) 5.19 (0.1) 5.08 5.08 (0.1)
Distance [pc] 196.82 (4) 192.66 (5) 130.00 196.82 196.82 (4)
Composition H
Proper motion (right ascension) [mas/yr] 38.12051487 (0.1) 37.95829031 (0.3) 38.121 (0.1)
Proper motion (declination) [mas/yr] 3.249125269 (0.1) 3.235827927 (0.1) 3.249 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.20 16.20
V magnitude 16.20
R magnitude 17.00
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.10 (0.009)
g magnitude 17.01 (0.004)
r magnitude 17.36 (0.006)
i magnitude 17.64 (0.007)
z magnitude 17.95 (0.02)
G magnitude 17.19 (0.007) 17.22 17.19 17.19 (0.003)
BP magnitude 17.14 (0.007) 17.13
RP magnitude 17.39 (0.01) 17.39
Pan g magnitude 17.04 (0.004)
Pan r magnitude 17.37 (0.005)
Pan i magnitude 17.66 (0.002)
Pan z magnitude 17.90 (0.007)
Pan y magnitude 18.09 (0.03)
E(B-V) 0.013

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.