Gaia DR2 950478049312082688

All names: J0657+4007, Gaia EDR3 950478049312082688, Gaia DR2 950478049312082688, TIC 197173876, PM J06577+4007, WDJ065745.13+400725.83, 2MASS J06574511+4007258, GALEX J065745.2+400725, WDJ065745.13+400725.82, Gaia DR3 950478049312082688, 06577+4007

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 06 57 45.27 (0.08) 06 57 45.26 06 57 45.27 06 57 45.13 (0.08) 06 57 45.26
Declination 40 07 25.01 (0.08) 40 07 25.04 40 07 25.01 40 07 25.83 (0.08) 40 07 25.04
Spectral type DA DA DA DA
Effective temperature [K] 6717.0 (25) 6693.0 6448.0 6900.0 (118) 6583.0 (64)
log(g) [cgs] 7.83 (0.01) 7.82 7.68 8.21 (0.2) 7.79 (0.02)
Mass [M] 0.492 (0.01) 0.486 0.402 0.73 (0.1) 0.472 (0.01)
log(Luminosity) [L] -3.60
Cooling age [Gyr] 1.3700 1.3160 1.2870
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] 18.61 (0.09) 18.39 (0.1) 18.39 (0.2) 18.61 18.61 (0.09) 18.39 (0.2)
Distance [pc] 53.75 (0.3) 54.38 (0.4) 54.39 (0.5) 50.30 (2) 53.75 53.75 (0.3) 54.39 (0.5)
Composition H H
Proper motion (right ascension) [mas/yr] 97.33989595 (0.09) 97.36483352 (0.2) 93.0 97.34 (0.09) 97.36483352
Proper motion (declination) [mas/yr] -50.84697342 (0.07) -51.14893816 (0.2) -54.0 -50.847 (0.07) -51.14893816
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.27 (0.01) 16.36 16.36 (0.09)
H magnitude 15.90 (0.03) 15.90 15.90 (0.1)
K magnitude 17.11 (0.03) 17.11
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 17.02 (0.01) 17.04 17.02 17.02 (0.003) 17.04
BP magnitude 17.26 (0.01) 17.25 17.25
RP magnitude 16.65 (0.01) 16.64 16.64
Pan g magnitude 17.25 (0.003) 17.25 (0.003)
Pan r magnitude 17.05 (0.004) 17.05 (0.005)
Pan i magnitude 16.99 (0.004) 16.99 (0.003)
Pan z magnitude 17.02 (0.007) 17.02 (0.007)
Pan y magnitude 17.04 (0.01) 17.04 (0.01)
E(B-V) 0.001

* 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.