WD 0902+293

All names: CBS 3, SDSS J090538.46+290610.40, SDSS J090538.46+290610.4, Gaia DR3 699212090150519424, Gaia DR2 699212090150519424, SDSS J090538.46+290610.2, LAMOST J090538.46+290610.3, Gaia EDR3 699212090150519424, SDSS J090538.46+290610.3, Ton 381, GALEX J090538.4+290610, WD 0902+293

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Bergeron et al. 2011 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 05 38.46 (0.1) 09 05 38.46 09 05 38.46 (0.2) 09 05 38.46 09 05 38.46 (0.1) 09 05 38.66 09 05 38.46
Declination 29 06 10.28 (0.06) 29 06 10.37 29 06 10.29 (0.2) 29 06 10.28 29 06 10.44 (0.06) 29 06 10.80 29 06 10.36
Spectral type DB DB DB DB DB DB DB
Effective temperature [K] 20335.0 19446.0 17148.0 19501.0 (121) 18590.0 (588) 19724.0 (815) 23269.0 (290)
log(g) [cgs] 8.07 7.99 7.85 7.87 (0.03) 8.02 (0.08) 8.08 (0.04) 7.98 (0.03)
Mass [M] 0.64 0.591 0.512 0.61 (0.05) 0.642 (0.04) 0.59 (0.01)
log(Luminosity) [L] -1.76
Cooling age [Gyr] 0.0966 0.1047
log(H/He) -5.146 <-4.52 <-5.47 (2)
log(C/He)
log(Ca/He) <-5.51
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] 5.45 (0.1) 5.26 (0.2) 5.45 5.45 (0.1)
Distance [pc] 183.59 (4) 190.17 (8) 205.00 172.00 183.59 183.59 (4)
Composition He He
Proper motion (right ascension) [mas/yr] -5.859429143 (0.1) -6.27772307 (0.3) -5.859 (0.1)
Proper motion (declination) [mas/yr] -9.747065582 (0.1) -9.546407058 (0.3) -9.747 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.00
V magnitude 17.00
R magnitude
I magnitude
J magnitude 17.59 (0.03)
H magnitude 17.75 (0.1)
K magnitude 17.70 (0.1)
u magnitude 16.83 (0.007) 16.82 (0.007) 16.85 (0.02)
g magnitude 16.93 (0.004) 16.93 (0.004) 16.97 (0.02)
r magnitude 17.29 (0.005) 17.29 (0.005) 17.28 (0.01)
i magnitude 17.57 (0.006) 17.57 (0.006) 17.57 (0.01)
z magnitude 17.82 (0.02) 17.82 (0.02) 17.84 (0.02)
G magnitude 17.12 (0.005) 17.14 17.12 17.12 (0.003)
BP magnitude 17.04 (0.005) 16.98
RP magnitude 17.28 (0.01) 17.27
Pan g magnitude 17.01 (0.003)
Pan r magnitude 17.30 (0.004)
Pan i magnitude 17.59 (0.007)
Pan z magnitude 17.83 (0.004)
Pan y magnitude 17.99 (0.01)
E(B-V) 0.009

* 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.