SBSS 1157+503

All names: SDSS J115959.91+500554.2, Gaia DR2 787824992112189440, SDSS J115959.91+500554.20, SDSS J115959.95+500554.0, Gaia EDR3 787824992112189440, SBSS 1157+503, SDSS J115959.90+500554.2, Gaia DR3 787824992112189440, GALEX J115959.9+500554

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 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 11 59 59.95 (0.07) 11 59 59.91 11 59 59.95 (0.09) 11 59 59.95 11 59 59.90 (0.07) 11 59 59.91
Declination 50 05 53.90 (0.09) 50 05 54.22 50 05 53.91 (0.1) 50 05 53.90 50 05 54.27 (0.09) 50 05 54.24
Spectral type DBAH: DB DBAH DBAH: DB
Effective temperature [K] 12764.0 13226.0 12238.0 12159.0 (69) 13190.0 (369) 13666.0 (256)
log(g) [cgs] 8.16 8.20 8.10 8.00 (0) 8.21 (0.04) 9.09 (0.2)
Mass [M] 0.682 0.708 0.644 0.718 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.4219
log(H/He) -5.243 -5.29 (0.1)
log(C/He)
log(Ca/He) <-10.13
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] 4.75 (0.1) 4.73 (0.2) 4.75 4.75 (0.1)
Distance [pc] 210.47 (6) 211.34 (10) 215.00 210.47 210.46 (6)
Composition He
Proper motion (right ascension) [mas/yr] 27.73265528 (0.09) 27.45939605 (0.2) 27.733 (0.09)
Proper motion (declination) [mas/yr] -22.70293338 (0.1) -22.71884271 (0.2) -22.703 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.50
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.42 (0.02) 18.43 (0.02) 18.41 (0.07)
g magnitude 18.40 (0.007) 18.40 (0.007) 18.45 (0.03)
r magnitude 18.65 (0.01) 18.65 (0.01) 18.67 (0.03)
i magnitude 18.83 (0.01) 18.83 (0.01) 18.88 (0.02)
z magnitude 19.16 (0.07) 19.16 (0.07) 19.18 (0.07)
G magnitude 18.51 (0.01) 18.54 18.51 18.51 (0.003)
BP magnitude 18.49 (0.01) 18.41
RP magnitude 18.55 (0.02) 18.51
Pan g magnitude 18.45 (0.008)
Pan r magnitude 18.63 (0.005)
Pan i magnitude 18.86 (0.005)
Pan z magnitude 19.04 (0.02)
Pan y magnitude 19.15 (0.04)
E(B-V) 0.014

* 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.