Gaia DR2 898348313253395968

All names: Gaia DR3 898348313253395968, SDSS J071816.41+373139.1, J0718+3731, GALEX J071816.4+373139, WDJ071816.42+373139.24, Gaia EDR3 898348313253395968, SDSS J071816.40+373139.0, Gaia DR2 898348313253395968

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Jewett et al. 2024 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 07 18 16.38 (0.07) 07 18 16.38 07 18 16.38 07 18 16.42 (0.07) 07 18 16.38
Declination 37 31 38.66 (0.08) 37 31 38.68 37 31 38.66 37 31 39.24 (0.08) 37 31 38.68
Spectral type DAH? DC DC DO DC
Effective temperature [K] 33942.0 (1411) 33942.0 (1411) 40636.0 (1506) 27904.0 42065.0 (2541)
log(g) [cgs] 9.35 (0.03) 9.35 9.36 (0.03) 9.18 9.41 (0.04)
Mass [M] 1.317 (0.007) 1.317 (0.007) 1.316 (0.008) 1.27 1.329 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.2000 (0.03) 0.2507
log(H/He) -5
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] 11.82 (0.09) 11.72 (0.2) 11.82 11.82 (0.1) 11.72 (0.2)
Distance [pc] 84.61 (0.7) 85.35 (1) 84.61 84.61 (0.7) 85.35 (1)
Composition H H
Proper motion (right ascension) [mas/yr] -34.87773991 (0.08) -34.96457507 (0.2) -34.878 (0.09) -34.96457507
Proper motion (declination) [mas/yr] -35.81598491 (0.08) -36.12075932 (0.2) -35.816 (0.08) -36.12075932
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.30 (0.006) 16.30 (0.006)
g magnitude 16.69 (0.004) 16.69 (0.004)
r magnitude 17.22 (0.005) 17.22 (0.005)
i magnitude 17.53 (0.007) 17.53 (0.007)
z magnitude 17.80 (0.02) 17.80 (0.02)
G magnitude 16.95 (0.01) 16.99 16.95 16.95 (0.004) 16.99
BP magnitude 16.82 (0.01) 16.75 16.75
RP magnitude 17.23 (0.02) 17.21 17.21
Pan g magnitude 16.78 (0.01)
Pan r magnitude 17.22 (0.006)
Pan i magnitude 17.56 (0.005)
Pan z magnitude 17.82 (0.02)
Pan y magnitude 18.01 (0.01)
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.