WD 1255+426

All names: SDSS J125724.04+422054.2, Gaia DR2 1527701145426221824, Gaia EDR3 1527701145426221824, WD 1255+426, Gaia DR3 1527701145426221824, FBS B 317, PG 1255+426, SDSS J125724.00+422053.81, FBS 1255+426, LAMOST J125724.00+422053.8, GALEX J125724.0+422054, SDSS J125724.00+422053.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 SDSS DR12 Bedard et al. 2020 Gaia DR2 Stilism Guo et al. 2015 Kepler et al. 2015 Gianninas et al. 2011 Liebert et al. 2005 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 12 57 23.99 (0.07) 12 57 24.05 12 57 24.05 12 57 23.99 (0.1) 12 57 23.99 12 57 24.06 (0.07) 12 57 23.90
Declination 42 20 53.47 (0.07) 42 20 54.27 42 20 54.27 42 20 53.50 (0.09) 42 20 53.47 42 20 54.41 (0.07) 42 20 48.12
Spectral type DA DA DA DA DA DA1.3 DA3 DA+MS
Effective temperature [K] 42180.0 (597) 49965.0 (617) 39960.0 (1298) 38310.0 (1135) 57954.0 (8715)
log(g) [cgs] 7.65 (0.06) 7.73 (0.04) 7.96 (0.1) 8.09 (0.1) 8.33 (1)
Mass [M] 0.52 (0.02) 0.5720000000000001 (0.01) 0.65 (0.07) 0.71 (0.07) 5.493 (45)
log(Luminosity) [L] -0.05 (0.05) -0.51
Cooling age [Gyr] 0.0028 (0.0004) 0.0055
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] 1.15 (0.1) 1.11 (0.1) 1.15 1.15 (0.1)
Distance [pc] 866.92 (82) 900.15 (120) 364.00 335.00 866.92 866.93 (82)
Composition H H
Proper motion (right ascension) [mas/yr] -51.70634884 (0.09) -51.30179667 (0.2) -51.706 (0.09)
Proper motion (declination) [mas/yr] -58.68509903 (0.1) -58.78158259 (0.2) -58.685 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 16.19
V magnitude 17.25
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.68 (0.007) 16.68 (0.007) 16.68 (0.01) 16.67 (0.007)
g magnitude 17.09 (0.004) 17.09 (0.004) 17.09 (0.02) 17.10 (0.004)
r magnitude 17.69 (0.006) 17.69 (0.006) 17.68 (0.03) 17.69 (0.006)
i magnitude 17.99 (0.008) 17.99 (0.008) 17.98 (0.02) 17.99 (0.008)
z magnitude 18.16 (0.03) 18.16 (0.03) 18.14 (0.03) 18.16 (0.03)
G magnitude 17.44 (0.007) 17.44 17.44 17.44 (0.003)
BP magnitude 17.27 (0.007) 17.16
RP magnitude 17.67 (0.01) 17.64
Pan g magnitude 17.23 (0.009)
Pan r magnitude 17.73 (0.01)
Pan i magnitude 18.02 (0.007)
Pan z magnitude 18.15 (0.005)
Pan y magnitude 18.20 (0.02)
E(B-V) 0.019

* 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.