USNO-B1.0 0886-00252678

All names: Gaia EDR3 4403954221440456320, SDSS J153852.35-012133.8, SDSS J153852.35-012133.80, WD 1536-011, SDSS J153852.34-012133.6, Gaia DR2 4403954221440456320, GALEX J153852.3-012133, SDSS J153852.34-012133.7, Gaia DR3 4403954221440456320, USNO-B1.0 0886-00252678

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Eisenstein et al. 2006 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 15 38 52.35 (0.3) 15 38 52.35 15 38 52.35 (0.4) 15 38 52.35 15 38 52.35 (0.3) 15 38 51.98 15 38 52.35
Declination -01 21 34.18 (0.3) -01 21 33.70 -01 21 34.17 (0.3) -01 21 33.72 -01 21 33.80 (0.3) -01 21 31.68 -01 21 33.77
Spectral type DBA DBA DBAH DBA DBAH: DB
Effective temperature [K] 16974.0 33678.0 10979.0 21900.0 (300) 37781.0 (2266)
log(g) [cgs] 8.25 8.15 6.98 8.49 (0.1) 8.20 (0.2)
Mass [M] 0.746 0.712 0.204
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He) -4.289
log(C/He)
log(Ca/He)
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] 1.70 (0.4) 1.57 (0.5) 1.70 (0.4)
Distance [pc] 586.62 (124) 635.22 (217) 586.61 (124)
Composition He
Proper motion (right ascension) [mas/yr] 3.894957262 (0.4) 4.438407729 (0.9) 3.895 (0.4)
Proper motion (declination) [mas/yr] -24.13559751 (0.3) -25.08816164 (0.7) -24.136 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.31 (0.03) 19.31 (0.03) 19.30 (0.03) 19.30 19.31 (0.03)
g magnitude 19.46 (0.01) 19.48 (0.02) 19.46 (0.01) 19.48 19.47 (0.02)
r magnitude 19.77 (0.02) 19.79 (0.02) 19.77 (0.02) 19.79 19.77 (0.02)
i magnitude 20.02 (0.03) 20.04 (0.03) 20.02 (0.03) 20.04 20.02 (0.03)
z magnitude 20.38 (0.2) 20.39 (0.2) 20.38 (0.2) 20.39 20.37 (0.2)
G magnitude 19.60 (0.04) 19.66 19.60 (0.005)
BP magnitude 19.55 (0.04) 19.60
RP magnitude 19.60 (0.1) 19.72
Pan g magnitude 19.51 (0.007)
Pan r magnitude 19.77 (0.02)
Pan i magnitude 20.03 (0.01)
Pan z magnitude 20.28 (0.06)
Pan y magnitude 19.94 (0.02)
E(B-V) 0.091

* 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.