WD 1531+073

All names: USNO-B1.0 0971-00304061, WDJ153418.26+071148.33, Gaia DR2 4430790968108076544, WD 1531+073, NLTT 40572, J1534+0711, LP 563-8, Gaia DR3 4430790968108076544, Gaia EDR3 4430790968108076544, SDSS J153418.28+071148.6, LSPM J1534+0711, SDSS J153418.29+071148.7, SDSS J153418.29+071148.77, SDSS J153418.28+071148.7

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 SDSS DR10 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 15 34 18.39 (0.2) 15 34 18.29 15 34 18.29 15 34 18.38 (0.2) 15 34 18.39 15 34 18.26 (0.2) 15 34 18.38 15 34 17.93
Declination 07 11 50.17 (0.1) 07 11 48.75 07 11 48.75 07 11 50.12 (0.2) 07 11 50.17 07 11 48.33 (0.1) 07 11 50.12 07 11 42.72
Spectral type DA DA DA DC DC DC DA: DA DA DA9.5 DA
Effective temperature [K] 5189.0 (20) 5246.0 (20) 5192.0 (20) 5144.0 4830.0 8000.0 (1000) 5167.0 (93)
log(g) [cgs] 7.96 (0.02) 8.06 (0.02) 8.00 (0.02) 7.97 7.75 8.00 (0) 7.97 (0.04)
Mass [M] 0.561 (0.01) 0.618 (0.02) 0.581 (0.02) 0.563 0.431 0.561 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 5.1000 4.5650 3.7680
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] 16.64 (0.2) 16.98 (0.2) 16.98 (0.2) 16.64 16.64 (0.2) 16.98 (0.2)
Distance [pc] 60.11 (0.7) 58.89 (0.8) 58.89 (0.8) 60.11 60.11 (0.7) 58.89 (0.8)
Composition H H
Proper motion (right ascension) [mas/yr] 120.5555464 (0.2) 120.4805314 (0.4) 120.556 (0.2) 120.481
Proper motion (declination) [mas/yr] 115.5082903 (0.1) 115.1842823 (0.4) 115.508 (0.1) 115.184
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.60
V magnitude
R magnitude 18.40
I magnitude
J magnitude 17.44 (0.04) 17.44 (0.04)
H magnitude 17.09 (0.04) 17.09 (0.04)
K magnitude 17.06 (0.05) 17.06 (0.05)
u magnitude 20.57 (0.05) 20.57 (0.05) 20.60 (0.05) 20.57 (0.05) 20.57 (0.05) 20.62 (0.05) 20.50
g magnitude 19.15 (0.01) 19.15 (0.01) 19.15 (0.01) 19.15 (0.01) 19.16 (0.01) 19.15
r magnitude 18.49 (0.009) 18.50 (0.009) 18.50 (0.01) 18.50 (0.009) 18.50 (0.008) 18.51
i magnitude 18.26 (0.01) 18.26 (0.01) 18.26 (0.01) 18.26 (0.01) 18.27 (0.009) 18.27
z magnitude 18.16 (0.02) 18.16 (0.02) 18.16 (0.02) 18.16 (0.02) 18.18 (0.02) 18.21
G magnitude 18.54 (0.03) 18.57 18.54 18.54 (0.003) 18.57
BP magnitude 19.05 (0.03) 19.06 19.06
RP magnitude 17.98 (0.02) 17.98 17.98
Pan g magnitude 19.06 (0.005) 19.06 (0.005)
Pan r magnitude 18.50 (0.004) 18.50 (0.004)
Pan i magnitude 18.29 (0.004) 18.29 (0.004)
Pan z magnitude 18.20 (0.01) 18.20 (0.009)
Pan y magnitude 18.16 (0.01) 18.16 (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.