WD 0807+485

All names: Gaia DR3 931514359950790016, SDSS J081116.96+482640.3, Gaia EDR3 931514359950790016, Gaia DR2 931514359950790016, SDSS J081116.95+482640.4, SDSS J081116.96+482640.4, WD 0807+485, SDSS J081116.95+482640.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 08 11 16.96 (0.09) 08 11 16.96 08 11 16.96 (0.1) 08 11 16.96 08 11 16.96 (0.09) 08 11 16.95 08 11 15.55 08 11 16.96 08 11 16.96
Declination 48 26 40.25 (0.07) 48 26 40.48 48 26 40.25 (0.09) 48 26 40.25 48 26 40.44 (0.07) 48 26 40.37 48 26 33.72 48 26 40.43 48 26 40.42
Spectral type DA DA DA DA DA DA DA1.5 DA DA
Effective temperature [K] 33510.0 (243) 21227.0 34250.0 (270) 29401.0 (1501) 34615.0 (214) 33803.0 (363) 34687.0 (239)
log(g) [cgs] 7.83 (0.05) 7.20 7.82 (0.06) 7.67 (0.08) 7.88 (0.04) 7.84 (0.07) 7.89 (0.04)
Mass [M☉] 0.57 (0.02) 0.315 0.57 (0.03) 0.488 (0.04)
log(Luminosity) [L☉] -0.58 (0.03)
Cooling age [Gyr] 0.0062 (0.0001) 0.0203 0.0063
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] 2.23 (0.1) 2.07 (0.2) 2.23 2.23 (0.1)
Distance [pc] 448.28 (24) 484.18 (36) 448.28 448.27 (24)
Composition H H H
Proper motion (right ascension) [mas/yr] -0.24923855 (0.1) -0.305768249 (0.2) -0.249 (0.1) 0.8 0.0
Proper motion (declination) [mas/yr] -12.04235057 (0.09) -12.18160627 (0.2) -12.042 (0.09) -14.9 -13.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.37 (0.009) 17.37 (0.009) 17.45 (0.01) 17.41 17.43 (0.02) 17.41 (0.01)
g magnitude 17.60 (0.005) 17.60 (0.005) 17.63 (0.02) 17.63 17.61 (0.02) 17.63 (0.02)
r magnitude 18.05 (0.007) 18.05 (0.007) 18.09 (0.02) 18.09 18.07 (0.02) 18.09 (0.02)
i magnitude 18.35 (0.01) 18.35 (0.01) 18.40 (0.02) 18.40 18.38 (0.02) 18.40 (0.02)
z magnitude 18.71 (0.04) 18.71 (0.04) 18.74 (0.05) 18.74 18.72 (0.05) 18.74 (0.05)
G magnitude 17.84 (0.01) 17.88 17.84 17.84 (0.003)
BP magnitude 17.73 (0.01) 17.67
RP magnitude 18.10 (0.02) 18.06
Pan g magnitude 17.68 (0.006)
Pan r magnitude 18.06 (0.007)
Pan i magnitude 18.39 (0.007)
Pan z magnitude 18.68 (0.01)
Pan y magnitude 18.80 (0.01)
E(B-V) 0.040

* 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.