WD 1317+021

All names: [VV98b] J131955.1+015258, LEDA 46495, 2QZ J131955.0+015258, SDSS J131955.04+015259.5, [VV2000b] J131955.1+015258, Gaia DR2 3688370510527371008, WD 1317+021, LBQS 1317+0208, UM 566, Gaia DR3 3688370510527371008, Gaia EDR3 3688370510527371008, SDSS J131955.03+015259.7, SDSS J131955.03+015259.77

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 13 19 55.02 (0.1) 13 19 55.05 13 19 55.05 13 19 55.03 (0.2) 13 19 55.02 13 19 55.05 (0.1) 13 19 54.98
Declination 01 52 59.76 (0.1) 01 52 59.52 01 52 59.52 01 52 59.75 (0.1) 01 52 59.76 01 52 59.43 (0.1) 01 52 58.08
Spectral type DA DAH: DAH: DA DA3.0 DA3.0 DA
Effective temperature [K] 17350.8 (630) 11685.0 18462.0 (122) 16259.0 (858)
log(g) [cgs] 7.43 (0.8) 6.96 7.66 (0.02) 7.27 (0.08)
Mass [M] 0.3606816863146889 (0.05) 0.221 0.308 (0.03)
log(Luminosity) [L]
Cooling age [Gyr]
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] 2.40 (0.2) 2.52 (0.2) 2.40 2.40 (0.2)
Distance [pc] 416.30 (29) 396.61 (32) 416.30 416.30 (29)
Composition H
Proper motion (right ascension) [mas/yr] -20.16721597 (0.2) -20.8585089 (0.5) -20.167 (0.2)
Proper motion (declination) [mas/yr] 20.3570539 (0.1) 20.91473118 (0.3) 20.357 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.26
V magnitude 18.20
R magnitude
I magnitude
J magnitude
H magnitude 17.79 (0.05)
K magnitude 17.57 (0.1)
u magnitude 18.32 (0.02) 18.32 (0.02) 18.33 (0.02) 18.32 (0.01)
g magnitude 18.11 (0.006) 18.12 (0.006) 18.14 (0.02) 18.11 (0.006)
r magnitude 18.45 (0.009) 18.46 (0.009) 18.46 (0.02) 18.45 (0.009)
i magnitude 18.70 (0.01) 18.71 (0.01) 18.71 (0.02) 18.70 (0.01)
z magnitude 18.83 (0.04) 18.84 (0.04) 18.84 (0.05) 18.83 (0.04)
G magnitude 18.28 (0.01) 18.31 18.28 18.28 (0.003)
BP magnitude 18.24 (0.01) 18.25
RP magnitude 18.38 (0.02) 18.35
Pan g magnitude 18.14 (0.005)
Pan r magnitude 18.44 (0.01)
Pan i magnitude 18.71 (0.006)
Pan z magnitude 18.85 (0.007)
Pan y magnitude 18.87 (0.01)
E(B-V) 0.024

* 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.