SDSS J093000.99+401126.8

All names: Gaia DR2 813264946695984000, Gaia DR3 813264946695984000, GALEX J093001.0+401126, Gaia EDR3 813264946695984000, WD 0926+404, SDSS J093000.99+401126.8, SDSS J093001.00+401126.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H 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 30 00.99 (0.3) 09 30 01.00 09 30 00.99 (0.4) 09 30 01.01 (0.3) 09 30 00.99 09 30 00.53 09 30 01.00
Declination 40 11 26.53 (0.2) 40 11 26.81 40 11 26.54 (0.4) 40 11 26.86 (0.2) 40 11 26.84 40 11 25.08 40 11 26.83
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 10314.0 10669.0 (126) 10604.0 (123)
log(g) [cgs] 8.26 8.46 (0.1) 8.50 (0.1)
Mass [M☉] 0.762 0.906 (0.07)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.8201
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 4.14 (0.3) 4.27 (0.5) 4.14 (0.3)
Distance [pc] 241.51 (18) 234.16 (28) 241.51 (18)
Composition H
Proper motion (right ascension) [mas/yr] -17.87712008 (0.3) -19.02798175 (0.6) -17.877 (0.3) -20.1
Proper motion (declination) [mas/yr] -20.23089443 (0.2) -20.21436648 (0.6) -20.231 (0.2) -21.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.65 (0.03) 19.65 (0.03) 19.63 (0.03) 19.63 19.63 (0.03)
g magnitude 19.29 (0.01) 19.29 (0.01) 19.28 (0.02) 19.27 19.29 (0.02)
r magnitude 19.39 (0.01) 19.39 (0.01) 19.38 (0.03) 19.38 19.39 (0.03)
i magnitude 19.48 (0.02) 19.48 (0.02) 19.47 (0.03) 19.46 19.47 (0.03)
z magnitude 19.74 (0.07) 19.74 (0.07) 19.74 (0.07) 19.73 19.74 (0.07)
G magnitude 19.33 (0.03) 19.38 19.33 (0.004)
BP magnitude 19.43 (0.03) 19.38
RP magnitude 19.35 (0.06) 19.23
Pan g magnitude 19.30 (0.01)
Pan r magnitude 19.40 (0.006)
Pan i magnitude 19.56 (0.009)
Pan z magnitude 19.73 (0.02)
Pan y magnitude 19.84 (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.