WD 0853+169

All names: Gaia EDR3 611482156153802240, Gaia DR2 611482156153802240, WD 0852+168, SDSS J085523.87+164059.0, GALEX J085523.8+164059, [VV2010] J085523.9+164058, SDSS J085523.86+164058.9, WD 0853+169, Gaia DR3 611482156153802240, SDSS J085523.87+164058.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Kulebi et al. 2009 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 55 23.85 (0.2) 08 55 23.87 08 55 23.85 (0.3) 08 55 23.87 08 55 23.85 08 55 23.88 (0.2) 08 55 23.35 08 55 23.87
Declination 16 40 58.92 (0.09) 16 40 58.99 16 40 58.92 (0.1) 16 40 59.02 16 40 58.92 16 40 59.06 (0.09) 16 41 00.24 16 40 59.01
Spectral type DAH DA DA DAH DA: DAH ? DAH DAH
Effective temperature [K] 16332.1 (709) 13716.0 20000.0 (500) 14839.0 (726) 28315.0 (477)
log(g) [cgs] 8.43 (0.6) 8.30 8.00 (0) 8.16 (0.08) 10.00 (0.004)
Mass [M] 0.8849288662885939 (0.7) 0.796 1.12 (0.1) 0.712 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.4071
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] 3.85 (0.2) 4.43 (0.4) 3.85 3.85 (0.2)
Distance [pc] 259.84 (16) 225.71 (18) 259.84 259.84 (16)
Composition H H
Proper motion (right ascension) [mas/yr] -28.69227601 (0.2) -28.34404057 (0.5) -28.692 (0.2)
Proper motion (declination) [mas/yr] -8.865086914 (0.1) -8.79653619 (0.3) -8.865 (0.1)
Variability
Magnetic yes yes yes
Bd [MG] 15.3433382647826 12.6 (1) 12.23 (3)
Infrared excess (disk)
Binarity
B magnitude 19.01
V magnitude 19.03
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.76 (0.02) 18.76 (0.02) 18.78 18.77 (0.02)
g magnitude 18.55 (0.008) 18.55 (0.008) 18.55 18.56 (0.02)
r magnitude 18.83 (0.01) 18.83 (0.01) 18.80 18.83 (0.02)
i magnitude 19.08 (0.02) 19.08 (0.01) 19.05 19.06 (0.02)
z magnitude 19.27 (0.06) 19.27 (0.06) 19.32 19.32 (0.07)
G magnitude 18.69 (0.02) 18.72 18.69 18.69 (0.003)
BP magnitude 18.68 (0.02) 18.62
RP magnitude 18.77 (0.03) 18.70
Pan g magnitude 18.58 (0.009)
Pan r magnitude 18.82 (0.007)
Pan i magnitude 19.09 (0.01)
Pan z magnitude 19.32 (0.02)
Pan y magnitude 19.30 (0.04)
E(B-V) 0.017

* 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.