Gaia DR2 297399444134124032

All names: SDSS J015453.71+253739.3, GALEX J015453.6+253739, Gaia DR2 297399444134124032, WDJ015453.72+253739.89, Gaia EDR3 297399444134124032, Gaia DR3 297399444134124032, SDSS J015453.71+253739.2, J0154+2537

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 01 54 53.71 (0.2) 01 54 53.71 01 54 53.71 01 54 53.72 (0.2) 01 54 53.71
Declination 25 37 38.91 (0.2) 25 37 38.95 25 37 38.91 25 37 39.90 (0.2) 25 37 38.95
Spectral type DAH DAH DAH DA DAH
Effective temperature [K] 6778.0 (52) 6849.0 (53) 6778.0 (52) 6945.0 6682.0 6981.0 (208)
log(g) [cgs] 8.21 (0.02) 8.25 (0.02) 8.23 (0.02) 8.28 8.17 8.27 (0.05)
Mass [M] 0.725 (0.02) 0.752 (0.02) 0.735 (0.02) 0.766 0.677 0.763 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 2.8100 2.7180 2.5150
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] 11.25 (0.2) 11.37 (0.2) 11.37 (0.2) 11.25 11.25 (0.2) 11.37 (0.2)
Distance [pc] 88.91 (1) 87.95 (2) 87.95 (2) 88.91 88.91 (1) 87.95 (2)
Composition H H
Proper motion (right ascension) [mas/yr] -8.810648405 (0.2) -8.326626368 (0.4) -8.811 (0.2) -8.326626368
Proper motion (declination) [mas/yr] -61.66307923 (0.2) -61.10312096 (0.4) -61.663 (0.2) -61.10312096
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.95 (0.06)
H magnitude
K magnitude
u magnitude 19.42 (0.03) 19.44 (0.03) 19.44 (0.03)
g magnitude 18.78 (0.008) 18.78 (0.008)
r magnitude 18.60 (0.009) 18.60 (0.009)
i magnitude 18.53 (0.01) 18.53 (0.01)
z magnitude 18.54 (0.03) 18.54 (0.03)
G magnitude 18.59 (0.03) 18.61 18.59 18.59 (0.004) 18.61
BP magnitude 18.78 (0.03) 18.80 18.80
RP magnitude 18.26 (0.03) 18.20 18.20
Pan g magnitude 18.78 (0.007) 18.78 (0.009)
Pan r magnitude 18.61 (0.007) 18.61 (0.007)
Pan i magnitude 18.56 (0.004) 18.56 (0.004)
Pan z magnitude 18.60 (0.007) 18.60 (0.007)
Pan y magnitude 18.66 (0.01) 18.66 (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.