WD 1339+659

All names: SDSS J134043.11+654349.2, Gaia EDR3 1672058191699796096, WD 1339+659, Gaia DR3 1672058191699796096, SDSS J134043.03+654349.4, Gaia DR2 1672058191699796096, SDSS J134043.11+654349.3, SDSS J134043.10+654349.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Kulebi et al. 2009 Harris et al. 2003 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 40 43.05 (0.1) 13 40 43.11 13 40 43.05 (0.2) 13 40 43.10 13 40 43.05 13 40 43.11 (0.1) 13 40 43.11 13 40 42.79 13 40 43.11
Declination 65 43 49.31 (0.1) 65 43 49.26 65 43 49.31 (0.1) 65 43 49.19 65 43 49.31 65 43 49.28 (0.1) 65 43 49.26 65 43 45.84 65 43 49.26
Spectral type DAH DA DA DAH DAH DA: DAH DAH DAH DAH DAH
Effective temperature [K] 14637.6 (537) 13332.0 15000.0 14405.0 (699) 19069.0 (303) 18612.0 (179)
log(g) [cgs] 8.17 (0.2) 8.10 8.00 (0) 8.17 (0.05) 9.00 (0.001) 9.51 (0.03)
Mass [M] 0.7164071460847842 (0.3) 0.667 0.711 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.3222
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] 4.16 (0.1) 4.15 (0.2) 4.16 4.16 (0.1)
Distance [pc] 240.23 (7) 241.18 (9) 240.23 240.23 (7)
Composition H H
Proper motion (right ascension) [mas/yr] -22.47431514 (0.1) -22.30794504 (0.3) -22.474 (0.1) -36.5
Proper motion (declination) [mas/yr] 2.220584878 (0.1) 2.215107519 (0.2) 2.221 (0.1) 9.9
Variability
Magnetic yes yes yes yes yes yes
Bd [MG] 4.817058651046466 4.32 (0.8) 4.32 (0.8)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.78 (0.02) 18.74 18.78 (0.02) 18.74 (0.02) 18.74 18.75 (0.02)
g magnitude 18.43 (0.007) 18.42 18.43 (0.007) 18.46 (0.05) 18.42 18.47 (0.05)
r magnitude 18.73 (0.01) 18.74 18.73 (0.01) 18.75 (0.03) 18.74 18.75 (0.03)
i magnitude 18.93 (0.01) 18.95 18.93 (0.01) 18.94 (0.03) 18.95 18.95 (0.02)
z magnitude 19.26 (0.06) 19.23 19.25 (0.06) 19.22 (0.06) 19.23 19.23 (0.06)
G magnitude 18.58 (0.01) 18.62 18.58 18.58 (0.003)
BP magnitude 18.57 (0.01) 18.54
RP magnitude 18.64 (0.03) 18.63
Pan g magnitude 18.47 (0.007)
Pan r magnitude 18.70 (0.005)
Pan i magnitude 18.98 (0.008)
Pan z magnitude 19.18 (0.02)
Pan y magnitude 19.30 (0.02)
E(B-V) 0.014

* 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.