Gaia DR2 912788233820354560

All names: SDSS J085710.34+415005.5, Gaia DR2 912788233820354560, SDSS J085710.33+415005.5, J0857+4150, US 1982, WDJ085710.36+415005.69, Gaia DR3 912788233820354560, Gaia EDR3 912788233820354560, SDSS J085710.35+415005.5

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 57 10.22 (0.2) 08 57 10.22 08 57 10.22 08 57 10.36 (0.2) 08 57 10.22
Declination 41 50 03.76 (0.1) 41 50 03.82 41 50 03.76 41 50 05.69 (0.1) 41 50 03.82
Spectral type DC DC DC DC DC
Effective temperature [K] 6519.0 (77) 6514.0 (82) 7006.0 6776.0 6676.0 (195)
log(g) [cgs] 8.13 (0.03) 8.15 (0.04) 8.38 8.29 8.23 (0.05)
Mass [M] 0.654 (0.03) 0.666 (0.03) 0.837 0.76 0.718 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 2.6100 3.3120 3.1250
log(H/He) -3.2 -3.2
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] 11.42 (0.2) 11.57 (0.3) 11.57 (0.3) 11.42 11.42 (0.2) 11.57 (0.3)
Distance [pc] 87.58 (2) 86.43 (2) 86.40 (3) 87.58 87.58 (2) 86.40 (3)
Composition He
Proper motion (right ascension) [mas/yr] -98.08178797 (0.2) -97.80545085 (0.4) -98.082 (0.2) -97.80545085
Proper motion (declination) [mas/yr] -120.856983 (0.2) -121.0222942 (0.3) -120.857 (0.2) -121.0222942
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.20
V magnitude
R magnitude
I magnitude
J magnitude 18.10 (0.06)
H magnitude
K magnitude
u magnitude 19.46 (0.03) 19.41 (0.03) 19.51 (0.04)
g magnitude 18.87 (0.009) 18.86 (0.009)
r magnitude 18.66 (0.009) 18.67 (0.01)
i magnitude 18.64 (0.01) 18.66 (0.01)
z magnitude 18.71 (0.03) 18.75 (0.04)
G magnitude 18.66 (0.02) 18.69 18.66 18.66 (0.003) 18.69
BP magnitude 18.83 (0.02) 18.82 18.82
RP magnitude 18.31 (0.03) 18.35 18.35
Pan g magnitude 18.87 (0.02) 18.87 (0.02)
Pan r magnitude 18.68 (0.008) 18.68 (0.008)
Pan i magnitude 18.66 (0.004) 18.66 (0.004)
Pan z magnitude 18.74 (0.02) 18.74 (0.02)
Pan y magnitude 18.73 (0.04) 18.73 (0.04)
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.