SDSS J135933.23-021715.1

All names: SDSS J135933.24-021715.2, SDSS J135933.22-021715.2, Gaia DR2 3657725094236611072, SDSS J135933.24-021715.20, SDSS J135933.23-021715.1, Gaia EDR3 3657725094236611072, WD 1356-020, GALEX J135933.2-021714, Gaia DR3 3657725094236611072

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 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 59 33.21 (0.1) 13 59 33.23 13 59 33.21 (0.2) 13 59 33.21 13 59 33.24 (0.1) 13 59 33.23 13 59 33.02 13 59 33.24
Declination -02 17 15.25 (0.08) -02 17 15.18 -02 17 15.25 (0.1) -02 17 15.25 -02 17 15.17 (0.08) -02 17 15.18 -02 17 13.92 -02 17 15.19
Spectral type DBA DB DBA DBA DBA DBA DB
Effective temperature [K] 16304.0 16372.0 13948.0 16973.0 (60) 13530.0 (527) 17067.0 (104) 16778.0 (123)
log(g) [cgs] 7.70 8.04 7.82 7.83 (0.05) 7.77 (0.06) 8.12 (0.06) 8.18 (0.06)
Mass [M] 0.438 0.615 0.489 0.463 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.1905
log(H/He) -3.455 -3.33 (0.1)
log(C/He)
log(Ca/He) -6.49 (0.3)
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] 4.60 (0.1) 4.63 (0.2) 4.60 4.60 (0.1)
Distance [pc] 217.32 (6) 215.76 (7) 248.00 217.32 217.33 (6)
Composition He
Proper motion (right ascension) [mas/yr] -27.45989206 (0.1) -27.76449551 (0.3) -27.46 (0.1) -21.6
Proper motion (declination) [mas/yr] -5.457036013 (0.1) -5.533488423 (0.2) -5.457 (0.1) -7.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.65 (0.01) 17.66 (0.01) 17.67 (0.02) 17.66 17.67 (0.02)
g magnitude 17.71 (0.005) 17.71 (0.005) 17.73 (0.02) 17.72 17.72 (0.02)
r magnitude 18.00 (0.007) 18.00 (0.007) 17.99 (0.02) 17.98 17.99 (0.02)
i magnitude 18.24 (0.009) 18.24 (0.009) 18.24 (0.02) 18.23 18.24 (0.02)
z magnitude 18.48 (0.03) 18.48 (0.03) 18.48 (0.04) 18.47 18.48 (0.04)
G magnitude 17.85 (0.01) 17.88 17.85 17.85 (0.003)
BP magnitude 17.81 (0.01) 17.74
RP magnitude 18.00 (0.02) 17.92
Pan g magnitude 17.76 (0.005)
Pan r magnitude 18.01 (0.004)
Pan i magnitude 18.24 (0.006)
Pan z magnitude 18.46 (0.004)
Pan y magnitude 18.60 (0.02)
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.