SDSS J014812.13+220558.6

All names: SDSS J014812.13+220558.5, SDSS J014812.13+220558.6, Gaia DR2 98192023357931264, GALEX J014812.1+220558, Gaia EDR3 98192023357931264, SDSS J014812.13+220558.52, Gaia DR3 98192023357931264

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 01 48 12.12 (0.07) 01 48 12.14 01 48 12.12 (0.09) 01 48 12.12 01 48 12.14 (0.07)
Declination 22 05 58.36 (0.06) 22 05 58.69 22 05 58.37 (0.08) 22 05 58.36 22 05 58.80 (0.06)
Spectral type DBA DBA DB DBA DB
Effective temperature [K] 14352.0 13569.0 12938.0 14404.0 (29) 14925.0 (51) 14234.0 (352)
log(g) [cgs] 8.10 8.18 8.12 8.00 (0) 8.48 (0.03) 8.27 (0.03)
Mass [M] 0.649 0.694 0.655 0.934 (0.02) 0.754 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.3727
log(H/He) -5.831 -5.48 (0.2)
log(C/He)
log(Ca/He) <-8.86
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] 8.85 (0.09) 8.74 (0.1) 8.85 8.85 (0.09)
Distance [pc] 113.04 (1) 114.45 (1) 132.00 113.04 113.04 (1)
Composition He
Proper motion (right ascension) [mas/yr] -17.41142552 (0.09) -17.57479189 (0.2) -17.411 (0.09)
Proper motion (declination) [mas/yr] -27.68586605 (0.09) -27.60934422 (0.2) -27.686 (0.09)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.91 (0.007) 16.92 (0.02) 16.91 (0.007)
g magnitude 16.94 (0.004) 16.95 (0.02) 16.94 (0.004)
r magnitude 17.22 (0.005) 17.23 (0.01) 17.22 (0.005)
i magnitude 17.42 (0.006) 17.42 (0.01) 17.42 (0.006)
z magnitude 17.64 (0.02) 17.65 (0.02) 17.64 (0.02)
G magnitude 17.06 (0.007) 17.09 17.06 17.06 (0.003)
BP magnitude 17.03 (0.007) 17.01
RP magnitude 17.13 (0.01) 17.11
Pan g magnitude 17.00 (0.01)
Pan r magnitude 17.21 (0.002)
Pan i magnitude 17.45 (0.002)
Pan z magnitude 17.64 (0.005)
Pan y magnitude 17.77 (0.007)
E(B-V) 0.021

* 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.