WD 1257+185

All names: Gaia EDR3 3940853397134158848, WD 1257+185, Gaia DR3 3940853397134158848, TIC 149565725, SDSS J130014.78+181734.5, WIRED J130014.77+181734.4, GALEX J130014.8+181734, SDSS J130014.77+181734.4, Gaia DR2 3940853397134158848, LAMOST J130014.77+181734.4, WDJ130014.82+181734.41, J1300+1817, SDSS J130014.78+181734.4, 2MASS J13001484+1817344, SDSS J130014.77+181734.3

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 Guo et al. 2015 Sayres et al. 2012 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 00 14.70 (0.04) 13 00 14.78 13 00 14.71 (0.06) 13 00 14.84 13 00 14.70 13 00 14.82 (0.04) 13 00 14.71 13 00 14.78
Declination 18 17 34.59 (0.03) 18 17 34.46 18 17 34.58 (0.04) 18 17 34.50 18 17 34.59 18 17 34.41 (0.03) 18 17 34.58 18 17 34.42
Spectral type DA DA DA DA5.5 DA? DA5.5 DA DA5.5 DA DA DA
Effective temperature [K] 9182.0 (62) 9349.0 (55) 9183.0 (62) 9034.0 9630.0 (30) 9521.0 (63) 9484.0 (23)
log(g) [cgs] 7.53 (0.01) 7.57 (0.01) 7.54 (0.01) 7.50 8.50 (0.03) 7.61 (0.01) 8.50 (0.03)
Mass [M] 0.363 (0.007) 0.382 (0.007) 0.366 (0.008) 0.353 0.399 (0.008) 0.905 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.4500 0.4645
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] 11.88 (0.05) 11.94 (0.07) 11.94 (0.07) 11.88 11.88 (0.05) 11.94 (0.07)
Distance [pc] 84.21 (0.4) 83.75 (0.5) 83.74 (0.5) 65.40 84.21 84.20 (0.4) 83.74 (0.5)
Composition H H H H
Proper motion (right ascension) [mas/yr] -101.3163539 (0.07) -101.358625 (0.2) -101.316 (0.07) -101.359
Proper motion (declination) [mas/yr] 11.38131852 (0.07) 11.41877238 (0.1) 11.381 (0.07) 11.419
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.26 (0.01) 16.27 (0.1) 16.27 (0.1)
H magnitude 16.01 (0.1) 16.01 (0.1) 16.01 (0.1)
K magnitude 16.11 (0.3) 16.11 (0.3) 16.11 (0.1)
u magnitude 16.92 (0.009) 16.84 (0.008) 16.91 (0.009) 16.92 (0.009) 16.92 (0.009) 16.92 (0.02)
g magnitude 16.45 (0.004) 16.45 (0.004) 16.45 (0.004) 16.45 (0.004) 16.50 (0.02)
r magnitude 16.52 (0.004) (0.004) 16.52 (0.004) 16.52 (0.004) 16.53 (0.01)
i magnitude 16.59 (0.005) 16.60 (0.005) 16.59 (0.005) 16.59 (0.005) 16.59 (0.02)
z magnitude 16.74 (0.01) 16.75 (0.01) 16.74 (0.01) 16.74 (0.01) 16.75 (0.02)
G magnitude 16.44 (0.003) 16.46 16.44 16.44 (0.003) 16.46
BP magnitude 16.52 (0.003) 16.51 16.51
RP magnitude 16.31 (0.004) 16.32 16.32
Pan g magnitude 16.49 (0.005) 16.49 (0.005)
Pan r magnitude 16.52 (0.003) 16.52 (0.003)
Pan i magnitude 16.62 (0.005) 16.62 (0.006)
Pan z magnitude 16.75 (0.006) 16.75 (0.007)
Pan y magnitude 16.85 (0.01) 16.85 (0.008)
E(B-V) 0.004

* 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.