Gaia DR2 650400263572196480

All names: SDSS J081956.03+132100.9, J0819+1321, SDSS J081956.02+132100.9, Gaia EDR3 650400263572196480, WDJ081956.04+132101.04, Gaia DR3 650400263572196480, Gaia DR2 650400263572196480

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Vincent et al. 2023
Right ascension 08 19 56.02 (0.2) 08 19 56.02 08 19 56.02 08 19 56.04 (0.2) 08 19 56.02
Declination 13 21 00.76 (0.1) 13 21 00.77 13 21 00.76 13 21 01.05 (0.1) 13 21 00.77
Spectral type DC DC DC DC DC
Effective temperature [K] 5579.0 (50) 5902.0 (51) 5934.0 5673.0
log(g) [cgs] 7.91 (0.04) 8.09 (0.04) 8.15 8.00
Mass [M] 0.518 (0.03) 0.629 (0.04) 0.681 0.567
log(Luminosity) [L]
Cooling age [Gyr] 3.5800 3.3840 3.3800
log(H/He) -5.0
log(C/He)
log(Ca/He)
log(Ca/H)
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] 11.65 (0.3) 11.51 (0.4) 11.51 (0.4) 11.65 11.65 (0.3) 11.51 (0.4)
Distance [pc] 85.83 (2) 86.88 (3) 86.85 (3) 85.83 85.83 (2) 86.85 (3)
Composition He
Proper motion (right ascension) [mas/yr] -18.80589653 (0.3) -18.75783922 (0.7) -18.806 (0.3) -18.75783922
Proper motion (declination) [mas/yr] -18.09124079 (0.2) -17.79439189 (0.4) -18.091 (0.2) -17.79439189
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.14 (0.06)
H magnitude
K magnitude
u magnitude 20.01 (0.04) 20.02 (0.04) 19.93 (0.04)
g magnitude 19.35 (0.01) 19.34 (0.01)
r magnitude 18.99 (0.01) 18.97 (0.01)
i magnitude 18.84 (0.01) 18.84 (0.01)
z magnitude 18.80 (0.04) 18.77 (0.04)
G magnitude 18.98 (0.03) 19.01 18.98 18.98 (0.003) 19.01
BP magnitude 19.29 (0.03) 19.26 19.26
RP magnitude 18.54 (0.02) 18.52 18.52
Pan g magnitude 19.29 (0.01) 19.29 (0.009)
Pan r magnitude 18.99 (0.003) 18.99 (0.003)
Pan i magnitude 18.86 (0.009) 18.86 (0.008)
Pan z magnitude 18.80 (0.009) 18.80 (0.01)
Pan y magnitude 18.79 (0.02) 18.79 (0.03)
E(B-V) 0.003

* 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.