SDSS J080045.06+500227.6

All names: WD 0757+501, SDSS J080045.07+500227.7, WIRED J080045.06+500227.6, Gaia DR2 935634126940956544, SDSS J080045.08+500227.3, SDSS J080045.06+500227.6, GALEX J080045.0+500227, Gaia DR3 935634126940956544, Gaia EDR3 935634126940956544

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 00 45.08 (0.2) 08 00 45.07 08 00 45.08 (0.2) 08 00 45.06 08 00 45.07 (0.2) 08 00 45.07 08 00 45.14 08 00 45.07
Declination 50 02 26.91 (0.2) 50 02 27.72 50 02 26.95 (0.2) 50 02 27.60 50 02 27.95 (0.2) 50 02 27.68 50 02 25.08 50 02 27.68
Spectral type DA+M DA+M DA DA DA+M: DA d DA+M DA+MS
Effective temperature [K] 9487.0 21535.0 (870) 23020.0 (960) 19641.0 (360) 19765.0 (403)
log(g) [cgs] 6.54 7.81 (0.1) 7.76 (0.1) 7.59 (0.08) 7.57 (0.09)
Mass [M] 0.129 0.53 (0.08) 0.51 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.0275
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] 2.11 (0.2) 1.92 (0.4) 2.11 (0.2)
Distance [pc] 474.16 (55) 519.56 (97) 540.00 (39) 474.16 (55)
Composition H H
Proper motion (right ascension) [mas/yr] 6.792633494 (0.2) 5.621025591 (0.5) 6.793 (0.2) 6.6
Proper motion (declination) [mas/yr] -64.73126244 (0.2) -64.77833431 (0.4) -64.731 (0.2) -62.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.89 (0.02) 18.86 18.89 (0.02) 18.86 (0.04) 18.86 18.87 (0.03)
g magnitude 18.73 (0.008) 18.75 18.73 (0.008) 18.75 (0.02) 18.75 18.75 (0.02)
r magnitude 19.03 (0.01) 19.07 19.03 (0.01) 19.07 (0.02) 19.07 19.07 (0.02)
i magnitude 18.99 (0.02) 19.07 18.99 (0.01) 19.07 (0.02) 19.07 19.08 (0.02)
z magnitude 18.68 (0.04) 18.76 18.68 (0.04) 18.76 (0.05) 18.76 18.75 (0.05)
G magnitude 18.96 (0.03) 18.99 18.96 (0.004)
BP magnitude 18.88 (0.03) 18.90
RP magnitude 18.56 (0.04) 18.56
Pan g magnitude 18.81 (0.01)
Pan r magnitude 19.07 (0.01)
Pan i magnitude 19.05 (0.01)
Pan z magnitude 18.80 (0.01)
Pan y magnitude 18.57 (0.05)
E(B-V) 0.042

* 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.