SDSS J091448.52+424033.4

All names: WD 0911+428, SDSS J091448.52+424033.4, SDSS J091448.53+424033.50, Gaia DR2 816232352484249856, SDSS J091448.53+424033.4, Gaia EDR3 816232352484249856, Gaia DR3 816232352484249856, SDSS J091448.53+424033.5

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 09 14 48.46 (0.2) 09 14 48.53 09 14 48.46 (0.2) 09 14 48.46 09 14 48.54 (0.2) 09 14 48.53 09 14 47.88 09 14 48.53
Declination 42 40 33.08 (0.1) 42 40 33.45 42 40 33.10 (0.2) 42 40 33.08 42 40 33.49 (0.1) 42 40 33.47 42 40 31.80 42 40 33.48
Spectral type DBA DB DBA DB: DB: DBA DB
Effective temperature [K] 12004.0 10533.0 10013.0 11695.0 (124) 10474.0 (279) 11759.0 (241) 11133.0 (180)
log(g) [cgs] 7.90 7.87 7.81 8.00 (0) 7.44 (0.07) 8.03 (0.2) 7.64 (0.2)
Mass [M] 0.528 0.508 0.474 0.318 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.4864
log(H/He) -5.594 -5.52 (0.3)
log(C/He)
log(Ca/He) <-10.15
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] 4.27 (0.2) 5.59 (0.2) 4.27 4.27 (0.2)
Distance [pc] 234.18 (12) 178.86 (8) 187.00 234.18 234.18 (12)
Composition He
Proper motion (right ascension) [mas/yr] -53.49801407 (0.2) -51.50664423 (0.3) -53.498 (0.2) -51.2
Proper motion (declination) [mas/yr] -25.59549134 (0.2) -24.12330907 (0.3) -25.595 (0.2) -40.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.34 (0.01) 18.34 (0.01) 18.35 (0.02) 18.34 18.34 (0.02)
g magnitude 18.22 (0.007) 18.22 (0.007) 18.23 (0.02) 18.22 18.23 (0.02)
r magnitude 18.35 (0.008) 18.35 (0.008) 18.33 (0.02) 18.33 18.34 (0.02)
i magnitude 18.48 (0.01) 18.48 (0.01) 18.46 (0.03) 18.46 18.47 (0.03)
z magnitude 18.64 (0.03) 18.64 (0.03) 18.64 (0.03) 18.64 18.65 (0.03)
G magnitude 18.25 (0.01) 18.29 18.25 18.25 (0.003)
BP magnitude 18.28 (0.01) 18.25
RP magnitude 18.17 (0.02) 18.18
Pan g magnitude 18.28 (0.01)
Pan r magnitude 18.34 (0.008)
Pan i magnitude 18.51 (0.005)
Pan z magnitude 18.65 (0.01)
Pan y magnitude 18.76 (0.04)
E(B-V) 0.012

* 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.