BSO 15

All names: Gaia DR2 1586427298416103296, SDSS J145401.60+440624.5, WD 1452+443, SDSS J145401.61+440624.5, Gaia EDR3 1586427298416103296, BSO 15, WDJ145401.60+440624.50, SDSS J145401.61+440624.4, J1454+4406, Gaia DR3 1586427298416103296, WIRED J145401.61+440624.5, GALEX J145401.6+440624, CSO 519

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 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 54 01.65 (0.06) 14 54 01.61 14 54 01.64 (0.08) 14 54 01.65 14 54 01.60 (0.06) 14 54 01.64 14 54 01.61 14 54 01.22 14 54 01.61
Declination 44 06 24.23 (0.06) 44 06 24.50 44 06 24.24 (0.08) 44 06 24.23 44 06 24.51 (0.06) 44 06 24.24 44 06 24.52 44 06 20.52 44 06 24.53
Spectral type DA DA DA DA DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 7691.0 (46) 7690.0 (44) 7691.0 (46) 7679.0 7630.0 (60) 7718.0 (102) 8033.0 (40) 7578.0 (40)
log(g) [cgs] 7.99 (0.01) 7.98 (0.01) 7.99 (0.01) 7.98 8.10 (0.1) 8.00 (0.02) 8.44 (0.08) 8.00 (0.07)
Mass [M] 0.588 (0.01) 0.584 (0.01) 0.586 (0.01) 0.584 0.66 (0.06) 0.596 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 1.2000 1.1700 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] 11.76 (0.08) 11.73 (0.1) 11.73 (0.1) 11.76 11.76 (0.08) 11.73 (0.1)
Distance [pc] 85.00 (0.6) 85.25 (0.8) 85.23 (0.8) 85.00 85.00 (0.6) 85.23 (0.8)
Composition H H H H
Proper motion (right ascension) [mas/yr] 28.43020446 (0.08) 28.44438948 (0.2) 28.43 (0.08) 28.444 34.1
Proper motion (declination) [mas/yr] -17.14475277 (0.08) -16.90540641 (0.2) -17.145 (0.08) -16.905 -17.3
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.14
V magnitude 17.83
R magnitude
I magnitude
J magnitude 17.18 (0.03)
H magnitude
K magnitude
u magnitude 18.33 (0.01) 18.31 (0.01) 18.33 (0.01) 18.31 (0.01) 18.27 (0.02) 18.26 18.31 (0.02)
g magnitude 17.87 (0.005) 17.87 (0.005) 17.88 (0.005) 17.86 (0.01) 17.86 17.88 (0.02)
r magnitude 17.78 (0.006) 17.78 (0.006) 17.77 (0.006) 17.79 (0.02) 17.79 17.79 (0.02)
i magnitude 17.78 (0.007) 17.78 (0.007) 17.77 (0.008) 17.75 (0.02) 17.75 17.78 (0.02)
z magnitude 17.82 (0.02) 17.82 (0.02) 17.82 (0.03) 17.79 (0.02) 17.78 17.80 (0.02)
G magnitude 17.72 (0.009) 17.74 17.72 17.72 (0.003) 17.74
BP magnitude 17.87 (0.009) 17.86 17.86
RP magnitude 17.48 (0.008) 17.46 17.46
Pan g magnitude 17.85 (0.004) 17.85 (0.004)
Pan r magnitude 17.76 (0.007) 17.76 (0.006)
Pan i magnitude 17.78 (0.004) 17.78 (0.004)
Pan z magnitude 17.87 (0.008) 17.87 (0.01)
Pan y magnitude 17.90 (0.02) 17.90 (0.02)
E(B-V) 0.010

* 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.