WD 0803+400

All names: SDSS J080717.35+395430.4, Gaia DR3 921142705421100288, GALEX J080717.3+395430, SDSS J080717.34+395430.4, USNO-A2.0 1275-07176309, KUV 08039+4003, Gaia DR2 921142705421100288, WD 0803+400, Gaia EDR3 921142705421100288

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 08 07 17.34 (0.07) 08 07 17.34 (0.09) 08 07 17.34 08 07 17.35 (0.07) 08 07 16.56
Declination 39 54 30.63 (0.07) 39 54 30.62 (0.1) 39 54 30.63 39 54 30.44 (0.07) 39 54 23.76
Spectral type DA DA DA DA3.3 DA
Effective temperature [K] 12093.0 15210.0 (299) 12570.0 (360)
log(g) [cgs] 7.99 8.04 (0.06) 8.02 (0.02)
Mass [M] 0.597 0.63 (0.03) 0.619 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.3586
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] 7.67 (0.09) 7.68 (0.2) 7.67 7.67 (0.09)
Distance [pc] 130.43 (2) 130.28 (3) 166.00 130.43 130.43 (2)
Composition H H
Proper motion (right ascension) [mas/yr] -9.012256321 (0.08) -9.028425314 (0.2) -9.012 (0.08)
Proper motion (declination) [mas/yr] 11.34783115 (0.06) 11.23915895 (0.1) 11.348 (0.06)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.80 (0.3)
V magnitude 17.40
R magnitude 16.80 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.55 (0.01)
g magnitude 17.11 (0.004)
r magnitude 17.35 (0.005)
i magnitude 17.52 (0.006)
z magnitude 17.78 (0.02)
G magnitude 17.23 (0.01) 17.26 17.23 17.23 (0.003)
BP magnitude 17.25 (0.01) 17.20
RP magnitude 17.28 (0.007) 17.29
Pan g magnitude 17.15 (0.004)
Pan r magnitude 17.34 (0.004)
Pan i magnitude 17.57 (0.003)
Pan z magnitude 17.78 (0.005)
Pan y magnitude 17.93 (0.01)
E(B-V) 0.006

* 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.