SDSS J103430.15+032736.3

All names: HS 1031+0343, WDJ103430.16+032736.40, WD 1031+037, SDSS J103430.16+032736.1, Gaia EDR3 3856950175919062144, GALEX J103430.1+032737, SDSS J103430.15+032736.3, Gaia DR3 3856950175919062144, SDSS J103430.16+032736.4, Gaia DR2 3856950175919062144, J1034+0327, USNO-B1.0 0934-00207092, SDSS J103430.16+032736.18

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 SDSS DR12 Kilic et al. 2025 Jewett et al. 2024 Hardy et al. 2023a Kilic et al. 2020 MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Kepler et al. 2015 Koester et al. 2009 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 10 34 30.15 (0.06) 10 34 30.16 10 34 30.16 10 34 30.15 (0.09) 10 34 30.15 10 34 30.16 (0.06) 10 34 30.15 10 34 30.29
Declination 03 27 36.11 (0.06) 03 27 36.38 03 27 36.38 03 27 36.12 (0.08) 03 27 36.11 03 27 36.40 (0.06) 03 27 36.12 03 27 28.80
Spectral type DAH DAH DAH DAH DA DA DAH DA: DAH DAH DAH DAH
Effective temperature [K] 15110.0 (167) 15110.0 (167) 15756.0 (406) 15109.0 (167) 15038.0 23045.0 (158) 17217.0 (435)
log(g) [cgs] 8.77 (0.008) 8.77 8.80 (0.05) 8.78 (0.01) 8.77 10.00 (0.5) 8.87 (0.02)
Mass [M] 1.089 (0.006) 1.089 (0.006) 1.1038719602761435 (0.06) 1.09 (0.006) 1.088 1.142 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.7600 (0.03) 0.7431
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] 12.80 (0.07) 12.82 (0.09) 12.80 12.80 (0.07) 12.82 (0.09)
Distance [pc] 78.11 (0.4) 77.99 (0.6) 78.11 78.11 (0.4) 77.99 (0.6)
Composition H H H
Proper motion (right ascension) [mas/yr] -6.543870543 (0.08) -6.345044159 (0.2) -6.544 (0.09) -6.345
Proper motion (declination) [mas/yr] -18.05761839 (0.08) -18.36062945 (0.1) -18.058 (0.08) -18.361
Variability
Magnetic yes yes yes yes
Bd [MG] 11.165820197057087 6.1 (0.3) 6.1
Infrared excess (disk)
Binarity
B magnitude 17.10
V magnitude
R magnitude 17.10
I magnitude
J magnitude 17.40 (0.04)
H magnitude 17.45 (0.07)
K magnitude 17.24 (0.1)
u magnitude 17.11 (0.007) 17.11 (0.007) 17.13 (0.02) 17.11 (0.007) 17.11 (0.007)
g magnitude 16.93 (0.004) 16.93 (0.004) 16.98 (0.02) 16.93 (0.004) 16.93 (0.004)
r magnitude 17.20 (0.005) 17.20 (0.005) 17.20 (0.01) 17.20 (0.005) 17.20 (0.005)
i magnitude 17.43 (0.006) 17.43 (0.006) 17.44 (0.02) 17.43 (0.006) 17.43 (0.006)
z magnitude 17.70 (0.01) 17.70 (0.01) 17.70 (0.02) 17.70 (0.01) 17.70 (0.01)
G magnitude 17.05 (0.003) 17.08 17.05 17.05 (0.003) 17.08
BP magnitude 17.03 (0.003) 17.02 17.02
RP magnitude 17.15 (0.008) 17.17 17.17
Pan g magnitude 16.95 (0.003)
Pan r magnitude 17.19 (0.003)
Pan i magnitude 17.45 (0.004)
Pan z magnitude 17.69 (0.006)
Pan y magnitude 17.85 (0.01)
E(B-V) 0.003

* 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.