SDSS J113811.94+545947.5

All names: WD 1135+552, SDSS J113811.94+545947.60, GALEX J113811.9+545947, SDSS J113811.94+545947.6, Gaia DR2 841547611281730688, SDSS J113811.91+545947.7, SDSS J113811.93+545947.5, Gaia DR3 841547611281730688, Gaia EDR3 841547611281730688, SDSS J113811.94+545947.5, LAMOST J113811.94+545947.6

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 11 38 11.89 (0.1) 11 38 11.94 11 38 11.89 (0.2) 11 38 11.89 11 38 11.95 (0.1) 11 38 11.94 11 38 11.42 11 38 11.94
Declination 54 59 47.84 (0.1) 54 59 47.58 54 59 47.83 (0.2) 54 59 47.84 54 59 47.60 (0.1) 54 59 47.59 54 59 41.28 54 59 47.61
Spectral type DB DB DB DB DB DBH: DB+MS
Effective temperature [K] 18160.0 17954.0 16085.0 18810.0 (147) 20354.0 (1763) 18475.0 (278) 18321.0 (373)
log(g) [cgs] 8.09 8.22 8.08 8.08 (0.06) 8.20 (0.09) 8.26 (0.1) 8.18 (0.1)
Mass [M] 0.648 0.728 0.639 0.719 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.1840
log(H/He) -5.235 <-4.41
log(C/He)
log(Ca/He) <-5.02
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] 2.72 (0.2) 3.03 (0.3) 2.72 2.72 (0.2)
Distance [pc] 367.89 (23) 329.79 (31) 375.00 367.89 367.89 (23)
Composition He
Proper motion (right ascension) [mas/yr] -32.00523834 (0.1) -31.95267153 (0.3) -32.005 (0.1) -27.7
Proper motion (declination) [mas/yr] 14.95677389 (0.2) 14.62847528 (0.3) 14.957 (0.2) 11.1
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 18.54 (0.02) 18.54 (0.02) 18.52 (0.02) 18.52 18.53 (0.02)
g magnitude 18.62 (0.008) 18.62 (0.008) 18.63 (0.02) 18.62 18.63 (0.02)
r magnitude 18.96 (0.01) 18.96 (0.01) 18.98 (0.02) 18.97 18.99 (0.02)
i magnitude 19.23 (0.02) 19.23 (0.02) 19.25 (0.02) 19.24 19.25 (0.02)
z magnitude 19.45 (0.06) 19.45 (0.06) 19.46 (0.07) 19.46 19.47 (0.07)
G magnitude 18.81 (0.01) 18.84 18.81 18.81 (0.003)
BP magnitude 18.73 (0.01) 18.68
RP magnitude 19.00 (0.03) 18.89
Pan g magnitude 18.69 (0.009)
Pan r magnitude 19.00 (0.006)
Pan i magnitude 19.25 (0.009)
Pan z magnitude 19.48 (0.01)
Pan y magnitude 19.49 (0.09)
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.