Gaia DR2 3956630388264212992

All names: Gaia DR2 3956630388264212992, J1257+2312, SDSS J125739.70+231232.2, SDSS J125739.71+231232.2, Gaia DR3 3956630388264212992, WDJ125739.67+231232.62, WDJ125739.67+231232.63, Gaia EDR3 3956630388264212992

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 Vincent et al. 2023
Right ascension 12 57 39.78 (0.2) 12 57 39.77 12 57 39.78 12 57 39.67 (0.2) 12 57 39.77
Declination 23 12 31.31 (0.2) 23 12 31.35 23 12 31.31 23 12 32.63 (0.2) 23 12 31.35
Spectral type DA DA DA DA DA DA
Effective temperature [K] 5918.0 (60) 5920.0 (59) 5923.0 (60) 5936.0 5676.0 6054.0 (142)
log(g) [cgs] 8.06 (0.04) 8.10 (0.05) 8.10 (0.05) 8.11 7.95 8.10 (0.06)
Mass [M] 0.621 (0.04) 0.649 (0.04) 0.649 (0.04) 0.653 0.539 0.649 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 3.0700 3.0010 2.9940
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] 10.01 (0.3) 10.29 (0.5) 10.29 (0.4) 10.01 10.01 (0.3) 10.29 (0.4)
Distance [pc] 99.92 (3) 97.18 (4) 97.19 (4) 99.92 99.92 (3) 97.19 (4)
Composition H H
Proper motion (right ascension) [mas/yr] 95.42467707 (0.5) 95.3169223 (0.6) 95.425 (0.5) 95.3169223
Proper motion (declination) [mas/yr] -82.81649923 (0.4) -82.65842982 (0.5) -82.816 (0.4) -82.65842982
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.21 (0.05)
H magnitude 17.86 (0.09)
K magnitude 17.91 (0.2)
u magnitude 20.49 (0.07) 20.49 (0.07) 20.49 (0.07)
g magnitude 19.50 (0.01) 19.50 (0.01)
r magnitude 19.15 (0.01) 19.15 (0.01)
i magnitude 18.99 (0.01) 18.99 (0.01)
z magnitude 18.96 (0.05) 18.96 (0.05)
G magnitude 19.16 (0.04) 19.18 19.16 19.16 (0.004) 19.18
BP magnitude 19.51 (0.04) 19.46 19.46
RP magnitude 18.70 (0.03) 18.68 18.68
Pan g magnitude 19.49 (0.02) 19.49 (0.02)
Pan r magnitude 19.14 (0.006) 19.14 (0.007)
Pan i magnitude 19.03 (0.01) 19.03 (0.01)
Pan z magnitude 18.99 (0.008) 18.99 (0.009)
Pan y magnitude 19.01 (0.02) 19.01 (0.01)
E(B-V) 0.005

* 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.