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
Spectra without link are available upon request
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.