WD 1531+007

All names: Gaia DR3 4417527967363383680, SDSS J153424.85+003756.1, J1534+0037, Gaia EDR3 4417527967363383680, GALEX J153424.9+003756, SDSS J153424.86+003755.9, Gaia DR2 4417527967363383680, SDSS J153424.85+003755.9, WDJ153424.86+003756.01, SDSS J153424.86+003756.0, WD 1531+007, SDSS J153424.85+003756.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Harris et al. 2003 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 15 34 24.90 (0.1) 15 34 24.86 15 34 24.90 (0.2) 15 34 24.90 15 34 24.86 (0.1) 15 34 24.90 15 34 24.86 15 34 24.10 15 34 24.85 15 34 24.85
Declination 00 37 56.22 (0.08) 00 37 55.97 00 37 56.21 (0.1) 00 37 56.22 00 37 56.01 (0.08) 00 37 56.21 00 37 55.94 00 37 54.84 00 37 56.05 00 37 56.06
Spectral type DA DA DA DA DA DA6 DA DA6 DA DA DA5.9 DA DA
Effective temperature [K] 8340.0 (77) 8418.0 (62) 8340.0 (77) 8280.0 8390.0 (30) 8413.0 (147) 8544.0 (22) 8258.0 (24) 8596.0 (21)
log(g) [cgs] 8.08 (0.02) 8.10 (0.02) 8.08 (0.03) 8.06 8.26 (0.04) 8.10 (0.03) 8.43 (0.03) 8.08 (0.04) 8.51 (0.03)
Mass [M] 0.644 (0.01) 0.654 (0.02) 0.642 (0.02) 0.634 0.76 (0.03) 0.654 (0.03) 0.641 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.1200 1.0760 1.4454
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] 12.73 (0.1) 12.71 (0.2) 12.71 (0.2) 12.73 12.73 (0.1) 12.71 (0.2)
Distance [pc] 78.53 (0.7) 78.68 (1) 78.68 (2) 78.53 78.53 (0.7) 78.68 (2)
Composition H H H H
Proper motion (right ascension) [mas/yr] 39.58213424 (0.1) 39.55163396 (0.3) 39.582 (0.1) 39.552 40.5 40.0
Proper motion (declination) [mas/yr] 13.00938593 (0.09) 12.82219912 (0.2) 13.009 (0.09) 12.822 10.4 11.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.03 (0.02) 17.03 (0.02)
H magnitude 16.91 (0.02) 16.91 (0.02)
K magnitude 16.92 (0.04) 16.92 (0.04)
u magnitude 17.89 (0.01) 17.87 (0.01) 17.81 17.89 (0.01) 17.86 (0.01) 17.91 (0.02) 17.89 17.90 (0.02) 17.89 (0.02)
g magnitude 17.48 (0.005) 17.41 17.48 (0.005) 17.47 (0.005) 17.51 (0.02) 17.51 17.50 (0.02) 17.51 (0.02)
r magnitude 17.43 (0.005) 17.43 17.43 (0.005) 17.44 (0.005) 17.45 (0.009) 17.46 17.45 (0.01) 17.46 (0.01)
i magnitude 17.49 (0.006) 17.40 17.49 (0.006) 17.48 (0.007) 17.48 (0.01) 17.49 17.48 (0.01) 17.49 (0.01)
z magnitude 17.59 (0.01) 17.50 17.59 (0.01) 17.58 (0.02) 17.58 (0.02) 17.56 17.59 (0.02) 17.56 (0.03)
G magnitude 17.39 (0.01) 17.41 17.39 17.39 (0.003) 17.41
BP magnitude 17.49 (0.01) 17.52 17.52
RP magnitude 17.19 (0.01) 17.22 17.22
Pan g magnitude 17.48 (0.005) 17.48 (0.006)
Pan r magnitude 17.45 (0.004) 17.45 (0.004)
Pan i magnitude 17.48 (0.008) 17.48 (0.007)
Pan z magnitude 17.61 (0.02) 17.61 (0.02)
Pan y magnitude 17.67 (0.01) 17.67 (0.01)
E(B-V) 0.006

* 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.