WD 0856+425

All names: SDSS J085947.33+422113.0, US 2088, SDSS J085947.33+422113.1, Gaia DR2 1008837274655408128, WD 0856+425, SDSS J085947.32+422113.0, GALEX J085947.3+422113, Gaia EDR3 1008837274655408128, Gaia DR3 1008837274655408128, SDSS J085947.32+422113.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 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 Vincent et al. 2023
Right ascension 08 59 47.27 (0.1) 08 59 47.33 08 59 47.27 (0.1) 08 59 47.27 08 59 47.34 (0.1) 08 59 47.32 08 59 47.30 08 59 47.33
Declination 42 21 12.69 (0.08) 42 21 13.11 42 21 12.71 (0.1) 42 21 12.69 42 21 13.19 (0.08) 42 21 13.08 42 21 11.16 42 21 13.07
Spectral type DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 14372.0 15210.0 (510) 15746.0 (513) 14863.0 (175) 14845.0 (236)
log(g) [cgs] 8.40 8.52 (0.04) 8.48 (0.03) 8.45 (0.03) 8.53 (0.03)
Mass [M] 0.864 0.94 (0.03) 0.914 (0.03) 0.929 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.4255 0.4786
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] 6.66 (0.1) 6.65 (0.2) 6.66 6.66 (0.1)
Distance [pc] 150.17 (3) 150.35 (4) 150.17 150.17 (3)
Composition H H
Proper motion (right ascension) [mas/yr] -47.45080979 (0.1) -47.2411075 (0.2) -47.451 (0.1) -48.9
Proper motion (declination) [mas/yr] -31.2298984 (0.1) -31.08119574 (0.2) -31.23 (0.1) -31.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.60
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.02 (0.01) 18.02 (0.01) 17.99 (0.02) 17.74 18.02 (0.02)
g magnitude 17.76 (0.005) 17.76 (0.005) 17.75 (0.01) 17.74 17.76 (0.01)
r magnitude 18.00 (0.007) 18.00 (0.007) 18.02 (0.02) 18.02 (0.02)
i magnitude 18.26 (0.009) 18.27 (0.009) 18.26 (0.02) 18.28 (0.02)
z magnitude 18.52 (0.03) 18.52 (0.03) 18.52 (0.03) 18.52 (0.03)
G magnitude 17.90 (0.008) 17.93 17.90 17.90 (0.003)
BP magnitude 17.87 (0.008) 17.89
RP magnitude 18.01 (0.02) 17.99
Pan g magnitude 17.80 (0.007)
Pan r magnitude 18.03 (0.006)
Pan i magnitude 18.29 (0.005)
Pan z magnitude 18.52 (0.006)
Pan y magnitude 18.69 (0.02)
E(B-V) 0.007

* 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.