SDSS J102218.91+261502.7

All names: SDSS J102218.98+261502.5, Gaia DR3 727025572508916480, LAMOST J102218.98+261502.5, SDSS J102218.91+261502.7, Gaia DR2 727025572508916480, SDSS J102218.91+261502.75, Gaia EDR3 727025572508916480, SDSS J102218.91+261502.8, GALEX J102219.0+261503

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Koester & Kepler 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 10 22 18.89 (0.07) 10 22 18.99 10 22 18.89 (0.1) 10 22 18.89 10 22 19.04 (0.07)
Declination 26 15 02.89 (0.07) 26 15 02.58 26 15 02.87 (0.1) 26 15 02.89 26 15 02.49 (0.07)
Spectral type DBA DBA DB DBA DB
Effective temperature [K] 14102.0 13543.0 13195.0 47498.0 (78) 14337.0 (35) 14249.0 (342)
log(g) [cgs] 8.05 7.97 7.94 8.15 (0.03) 8.00 (0) 8.09 (0.03)
Mass [M] 0.62 0.57 0.55 0.718 (0.02) 0.64 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.2662
log(H/He) -6.071 -5.84 (1)
log(C/He)
log(Ca/He) <-8.77
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] 7.90 (0.1) 7.73 (0.2) 7.90 7.90 (0.1)
Distance [pc] 126.61 (2) 129.38 (3) 132.00 126.61 126.61 (2)
Composition He
Proper motion (right ascension) [mas/yr] -127.2442251 (0.09) -127.0091662 (0.2) -127.244 (0.09)
Proper motion (declination) [mas/yr] 25.04592718 (0.08) 25.45969026 (0.2) 25.046 (0.08)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.87 (0.007) 16.87 (0.02) 16.87 (0.007)
g magnitude 16.90 (0.004) 16.95 (0.02) 16.90 (0.004)
r magnitude 17.19 (0.005) 17.18 (0.02) 17.19 (0.005)
i magnitude 17.38 (0.007) 17.37 (0.02) 17.38 (0.007)
z magnitude 17.65 (0.01) 17.63 (0.03) 17.64 (0.01)
G magnitude 17.03 (0.006) 17.06 17.03 17.03 (0.003)
BP magnitude 17.00 (0.006) 16.97
RP magnitude 17.11 (0.006) 17.12
Pan g magnitude 16.95 (0.003)
Pan r magnitude 17.18 (0.003)
Pan i magnitude 17.41 (0.003)
Pan z magnitude 17.63 (0.003)
Pan y magnitude 17.73 (0.01)
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.