SDSS J093749.03+000212.9

All names: EQ J0937+0002, SDSS J093749.04+000212.7, Gaia DR2 3840225023512548096, SDSS J093749.04+000212.77, GALEX J093749.0+000212, SDSS J093749.03+000212.9, Gaia DR3 3840225023512548096, Gaia EDR3 3840225023512548096

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 09 37 49.05 (0.2) 09 37 49.04 09 37 49.05 (0.3) 09 37 49.04 (0.2)
Declination 00 02 12.75 (0.2) 00 02 12.94 00 02 12.76 (0.4) 00 02 12.93 (0.2)
Spectral type DAO DAO DAO DAO DA
Effective temperature [K] 46868.0 (1319) 24363.0 56187.0 (1190)
log(g) [cgs] 7.69 (0.1) 7.08 8.17 (0.07)
Mass [M] 0.54 (0.04) 0.304
log(Luminosity) [L] 0.12 (0.1)
Cooling age [Gyr] 0.0022 (0.0004) 0.0194
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] 1.38 (0.2) 1.12 (0.5) 1.38 (0.2)
Distance [pc] 722.42 (115) 890.53 (364) 722.44 (115)
Composition H H
Proper motion (right ascension) [mas/yr] 12.06774914 (0.2) 11.44433408 (0.5) 12.068 (0.2)
Proper motion (declination) [mas/yr] -11.06677101 (0.2) -10.91887202 (0.5) -11.067 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 19.50 (0.2)
H magnitude
K magnitude
u magnitude 18.02 (0.01) 18.01 (0.02) 18.02 (0.01)
g magnitude 18.39 (0.007) 18.41 (0.02) 18.39 (0.007)
r magnitude 18.88 (0.01) 18.88 (0.02) 18.88 (0.01)
i magnitude 19.20 (0.02) 19.20 (0.02) 19.20 (0.02)
z magnitude 19.66 (0.08) 19.67 (0.08) 19.66 (0.08)
G magnitude 18.63 (0.01) 18.68 18.63 (0.003)
BP magnitude 18.47 (0.01) 18.44
RP magnitude 19.00 (0.03) 19.00
Pan g magnitude 18.46 (0.008)
Pan r magnitude 18.88 (0.01)
Pan i magnitude 19.27 (0.009)
Pan z magnitude 19.52 (0.04)
Pan y magnitude 19.66 (0.004)
E(B-V) 0.031

* 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.