SDSS J141539.63+185851.5

All names: Gaia EDR3 1233907068649870848, Gaia DR3 1233907068649870848, Gaia DR2 1233907068649870848, SDSS J141539.63+185851.5, SDSS J141539.63+185851.50

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Genest-Beaulieu & Bergeron 2019 (spectroscopic) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 15 39.64 (0.08) 14 15 39.64 (0.09) 14 15 39.64 14 15 39.62 (0.08) 14 15 39.63
Declination 18 58 51.43 (0.09) 18 58 51.43 (0.1) 18 58 51.43 18 58 51.46 (0.09) 18 58 51.47
Spectral type DBA DB: DBA DBA sdOB
Effective temperature [K] 12804.0 12805.0 12947.0 (57) 14165.0 (433) 12970.0 (144)
log(g) [cgs] 7.47 8.17 8.00 (0) 8.31 (0.04) 8.23 (0.1)
Mass [M] 0.337 0.692 0.781 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.4221
log(H/He) -4.606 -4.52 (0.1)
log(C/He)
log(Ca/He) <-9.58
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] 6.63 (0.1) 6.54 (0.2) 6.63 6.63 (0.1)
Distance [pc] 150.73 (3) 152.92 (4) 175.00 150.73 150.73 (3)
Composition He
Proper motion (right ascension) [mas/yr] 15.322956 (0.1) 14.86073128 (0.3) 15.323 (0.1)
Proper motion (declination) [mas/yr] -2.406956955 (0.1) -2.27009819 (0.2) -2.407 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.71 (0.02) 17.71 (0.02)
g magnitude 17.77 (0.02) 17.77 (0.02)
r magnitude 17.97 (0.01) 17.97 (0.01)
i magnitude 18.21 (0.02) 18.21 (0.02)
z magnitude 18.41 (0.03) 18.41 (0.03)
G magnitude 17.83 (0.01) 17.85 17.83 17.83 (0.003)
BP magnitude 17.77 (0.01) 17.32
RP magnitude 17.81 (0.03) 17.52
Pan g magnitude 17.73 (0.007)
Pan r magnitude 17.96 (0.008)
Pan i magnitude 18.19 (0.007)
Pan z magnitude 18.40 (0.01)
Pan y magnitude 18.46 (0.02)
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.