SDSS J092024.08+083746.2

All names: Gaia DR3 587554309231779840, WD 0917+088, SDSS J092024.10+083746.0, GALEX J092024.1+083746, SDSS J092024.08+083746.3, Gaia DR2 587554309231779840, Gaia EDR3 587554309231779840, SDSS J092024.08+083746.30, SDSS J092024.08+083746.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 20 24.11 (0.2) 09 20 24.08 09 20 24.11 (0.3) 09 20 24.08 (0.2) 09 20 24.08 09 20 23.38 09 20 24.08
Declination 08 37 45.96 (0.2) 08 37 46.28 08 37 45.97 (0.3) 08 37 46.37 (0.2) 08 37 46.28 08 37 45.12 08 37 46.31
Spectral type DB DB DB DB DBAH: DB
Effective temperature [K] 14716.0 13336.0 11786.0 15580.0 (284) 14579.0 (299)
log(g) [cgs] 8.51 8.31 8.15 8.59 (0.2) 8.40 (0.2)
Mass [M] 0.913 0.779 0.674
log(Luminosity) [L]
Cooling age [Gyr] 0.5044
log(H/He) -5.468
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 3.37 (0.3) 3.98 (0.5) 3.37 (0.3)
Distance [pc] 296.57 (26) 251.42 (33) 296.57 (26)
Composition He
Proper motion (right ascension) [mas/yr] 25.27474811 (0.3) 25.74220765 (0.7) 25.275 (0.3) 26.0
Proper motion (declination) [mas/yr] -25.65079773 (0.2) -25.74926744 (0.6) -25.651 (0.2) -22.5
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.95 (0.02) 18.95 (0.02) 18.94 (0.02) 18.93 18.96 (0.02)
g magnitude 18.94 (0.009) 18.94 (0.009) 18.97 (0.02) 18.96 18.98 (0.02)
r magnitude 19.15 (0.01) 19.15 (0.01) 19.17 (0.02) 19.16 19.18 (0.02)
i magnitude 19.36 (0.02) 19.36 (0.02) 19.41 (0.02) 19.40 19.41 (0.02)
z magnitude 19.57 (0.09) 19.57 (0.09) 19.61 (0.08) 19.60 19.61 (0.08)
G magnitude 19.08 (0.02) 19.11 19.08 (0.004)
BP magnitude 19.06 (0.02) 18.93
RP magnitude 19.03 (0.05) 18.99
Pan g magnitude 19.00 (0.008)
Pan r magnitude 19.18 (0.006)
Pan i magnitude 19.35 (0.01)
Pan z magnitude 19.57 (0.02)
Pan y magnitude 19.58 (0.1)
E(B-V) 0.023

* 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.