SDSS J095923.47+023143.3

All names: Gaia DR2 3836330725125750528, COSMOS J095923.47+023143.5, SDSS J095923.47+023143.6, GALEX J095923.4+023143, Gaia EDR3 3836330725125750528, SDSS J095923.47+023143.3, COSMOS 2414145, SDSS J095923.47+023143.62, [LKK2008] J095923.48+023143.5, USNO-A2.0 0900-06563721, Gaia DR3 3836330725125750528

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 Simbad Vincent et al. 2023
Right ascension 09 59 23.48 (0.3) 09 59 23.48 09 59 23.48 (0.5) 09 59 23.48 (0.3)
Declination 02 31 43.59 (0.3) 02 31 43.37 02 31 43.58 (0.4) 02 31 43.33 (0.3)
Spectral type DB DB DB DB
Effective temperature [K] 15575.0 14774.0 14178.0 15499.0 (97) 15520.0 (140)
log(g) [cgs] 7.99 8.24 8.22 8.00 (0) 8.02 (0.1)
Mass [M] 0.584 0.735 0.726 0.604 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.3448
log(H/He) -5.802 <-5.07
log(C/He)
log(Ca/He) <-6.85
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] 2.35 (0.4) 3.10 (0.7) 2.35 (0.4)
Distance [pc] 424.78 (70) 322.11 (72) 398.00 424.77 (70)
Composition He
Proper motion (right ascension) [mas/yr] 2.492023526 (0.3) 3.122320835 (0.7) 2.492 (0.3)
Proper motion (declination) [mas/yr] 16.04295861 (0.3) 16.06374805 (0.7) 16.043 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.21 (0.005)
V magnitude 19.45 (0.004)
R magnitude 18.50 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude 21.85 (0.3)
u magnitude 19.03 (0.02) 19.03 (0.02) 19.03 (0.02)
g magnitude 19.13 (0.01) 19.13 (0.01) 19.13 (0.01)
r magnitude 19.42 (0.02) 19.42 (0.02) 19.42 (0.01)
i magnitude 19.61 (0.03) 19.61 (0.03) 19.61 (0.03)
z magnitude 19.81 (0.1) 19.81 (0.1) 19.81 (0.1)
G magnitude 19.25 (0.03) 19.30 19.25 (0.005)
BP magnitude 19.24 (0.03) 19.14
RP magnitude 19.33 (0.06) 19.37
Pan g magnitude 19.18 (0.006)
Pan r magnitude 19.43 (0.007)
Pan i magnitude 19.66 (0.009)
Pan z magnitude 19.90 (0.03)
Pan y magnitude 20.02 (0.1)
E(B-V) 0.027

* 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.