Gaia DR2 866850569292962688

All names: LAMOST J073145.10+235352.9, WDJ073145.1+235353.57, GALEX J073145.1+235353, WDJ073145.10+235353.57, SDSS J073145.10+235353.4, LAMOST J073145.10+235352.8, Gaia DR2 866850569292962688, J0731+2353, Gaia EDR3 866850569292962688, SDSS J073145.09+235353.4, Gaia DR3 866850569292962688

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Guo et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 07 31 45.10 (0.04) 07 31 45.10 07 31 45.10 07 31 45.10 (0.04) 07 31 45.10
Declination 23 53 52.53 (0.04) 23 53 52.57 23 53 52.53 23 53 53.57 (0.04) 23 53 52.57
Spectral type DA DA DA DA DA
Effective temperature [K] 11430.0 (100) 11430.0 (100) 11270.0 11845.0 15375.0 (418) 11480.0 (123)
log(g) [cgs] 7.99 (0.01) 7.99 (0.01) 7.98 7.97 7.83 (0.09) 8.00 (0.01)
Mass [M] 0.6 (0.008) 0.601 (0.008) 0.59 0.566 0.52 (0.05) 0.607 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.4273 0.3792
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] 13.43 (0.04) 13.44 (0.06) 13.43 13.43 (0.04) 13.44 (0.06)
Distance [pc] 74.44 (0.2) 74.40 (0.3) 74.44 74.44 (0.2) 74.40 (0.3)
Composition H
Proper motion (right ascension) [mas/yr] 4.186310355 (0.05) 4.422456502 (0.1) 4.186 (0.05) 4.422456502
Proper motion (declination) [mas/yr] -64.70691278 (0.04) -64.99522388 (0.1) -64.707 (0.04) -64.99522388
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.49 (0.007) 16.49 (0.007)
g magnitude 16.06 (0.004) 16.06 (0.004)
r magnitude 16.27 (0.005) 16.27 (0.005)
i magnitude 16.42 (0.005) 16.42 (0.005)
z magnitude 16.68 (0.01) 16.68 (0.01)
G magnitude 16.14 (0.006) 16.16 16.14 16.14 (0.003) 16.16
BP magnitude 16.16 (0.006) 16.15 16.15
RP magnitude 16.15 (0.005) 16.15 16.15
Pan g magnitude 16.09 (0.005)
Pan r magnitude 16.26 (0.005)
Pan i magnitude 16.44 (0.003)
Pan z magnitude 16.65 (0.007)
Pan y magnitude 16.80 (0.009)
E(B-V) 0.002

* 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.