SDSS J095855.57+432029.0

All names: SDSS J095855.57+432029.0, Gaia DR2 808062946730396032, Gaia DR3 808062946730396032, GALEX J095855.5+432029, WD 0955+435, SDSS J095855.57+432029.00, SDSS J095855.56+432029.0, Gaia EDR3 808062946730396032

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 58 55.56 (0.2) 09 58 55.57 09 58 55.56 (0.3) 09 58 55.57 (0.2) 09 58 55.57 09 58 55.03 09 58 55.57
Declination 43 20 28.90 (0.2) 43 20 29.01 43 20 28.91 (0.4) 43 20 29.06 (0.2) 43 20 29.04 43 20 26.16 43 20 29.05
Spectral type DB DB DB DB DB DB+MS
Effective temperature [K] 17524.0 14814.0 14528.0 17439.0 (416) 17968.0 (557)
log(g) [cgs] 7.50 8.52 8.51 7.75 (0.2) 7.71 (0.2)
Mass [M] 0.362 0.917 0.91 0.451 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.5042
log(H/He) <-5.523
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] 2.47 (0.3) 3.55 (0.6) 2.47 (0.3)
Distance [pc] 404.33 (51) 281.84 (48) 404.33 (51)
Composition He
Proper motion (right ascension) [mas/yr] -2.647961662 (0.3) -2.216208732 (0.7) -2.648 (0.3) -1.7
Proper motion (declination) [mas/yr] -9.81413765 (0.3) -9.833063246 (0.9) -9.814 (0.3) -7.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.15 (0.03) 19.15 (0.03) 19.18 (0.04) 19.18 19.18 (0.03)
g magnitude 19.17 (0.01) 19.17 (0.01) 19.23 (0.03) 19.22 19.21 (0.03)
r magnitude 19.54 (0.02) 19.54 (0.02) 19.59 (0.04) 19.58 19.58 (0.04)
i magnitude 19.71 (0.03) 19.71 (0.03) 19.73 (0.03) 19.73 19.74 (0.03)
z magnitude 20.19 (0.1) 20.19 (0.1) 20.22 (0.1) 20.21 20.22 (0.1)
G magnitude 19.48 (0.03) 19.51 19.48 (0.004)
BP magnitude 19.42 (0.03) 19.31
RP magnitude 19.46 (0.05) 19.41
Pan g magnitude 19.28 (0.01)
Pan r magnitude 19.56 (0.01)
Pan i magnitude 19.80 (0.008)
Pan z magnitude 20.00 (0.02)
Pan y magnitude 20.23 (0.2)
E(B-V) 0.019

* 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.