Gaia DR2 315687277442204672

All names: SDSS J013105.71+314754.5, WDJ013105.68+314755.63, J0131+3147, Gaia DR3 315687277442204672, Gaia DR2 315687277442204672, WDJ01315.68+314755.62, SDSS J013105.71+314754.4, Gaia EDR3 315687277442204672, GALEX J013105.6+314754

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 31 05.74 (0.1) 01 31 05.74 01 31 05.74 01 31 05.68 (0.1) 01 31 05.74
Declination 31 47 53.59 (0.07) 31 47 53.65 31 47 53.59 31 47 55.63 (0.07) 31 47 53.65
Spectral type DA DA DA DA DA
Effective temperature [K] 7766.0 (64) 7831.0 (60) 7766.0 (64) 7693.0 7421.0 7771.0 (112)
log(g) [cgs] 7.99 (0.02) 8.01 (0.02) 7.99 (0.02) 7.97 7.87 7.99 (0.03)
Mass [M] 0.588 (0.01) 0.602 (0.02) 0.589 (0.02) 0.578 0.499 0.589 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 1.2000 1.1480 1.1340
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] 11.99 (0.1) 12.00 (0.2) 12.00 (0.2) 11.99 11.99 (0.1) 12.00 (0.2)
Distance [pc] 83.42 (0.8) 83.33 (1) 83.30 (1) 83.42 83.42 (0.8) 83.30 (1)
Composition H H
Proper motion (right ascension) [mas/yr] 48.84584229 (0.1) 48.68864258 (0.3) 48.846 (0.1) 48.68864258
Proper motion (declination) [mas/yr] -127.5624462 (0.08) -127.2989151 (0.3) -127.562 (0.09) -127.2989151
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.17 (0.03)
H magnitude
K magnitude
u magnitude 18.21 (0.02) 18.21 (0.02) 18.21 (0.02)
g magnitude 17.80 (0.006) 17.80 (0.006)
r magnitude 17.69 (0.006) 17.69 (0.006)
i magnitude 17.70 (0.008) 17.70 (0.008)
z magnitude 17.80 (0.02) 17.80 (0.02)
G magnitude 17.65 (0.009) 17.67 17.65 17.65 (0.003) 17.67
BP magnitude 17.79 (0.009) 17.81 17.81
RP magnitude 17.38 (0.009) 17.39 17.39
Pan g magnitude 17.78 (0.009) 17.78 (0.01)
Pan r magnitude 17.69 (0.003) 17.69 (0.003)
Pan i magnitude 17.71 (0.004) 17.71 (0.005)
Pan z magnitude 17.80 (0.006) 17.80 (0.006)
Pan y magnitude 17.83 (0.01) 17.83 (0.009)
E(B-V) 0.005

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.