WD 1731+591

All names: WD 1731+591, SDSS J173235.20+590533.5, EQ J1732+5905, SDSS J173235.19+590533.4, Gaia DR3 1434744751625887616, SDSS J173235.20+590533.4, 1731+591, SDSS J173235.19+590533.3, USNO-A2.0 1425-08820266, Gaia EDR3 1434744751625887616, Gaia DR2 1434744751625887616, GALEX J173235.2+590533

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Mukadam et al. 2006 Mukadam et al. 2004 Vincent et al. 2024 Simbad White Dwarf Research Corporation Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 17 32 35.19 (0.1) 17 32 35.20 17 32 35.19 (0.2) 17 32 35.19 17 32 35.19 (0.1) 17 32 35.21 17 32 34.94 17 32 35.20 17 32 35.20
Declination 59 05 32.59 (0.1) 59 05 33.36 59 05 32.61 (0.2) 59 05 32.59 59 05 33.43 (0.1) 59 05 33.47 59 05 29.04 59 05 33.46 59 05 33.47
Spectral type DA DA DA DA DAV DA DA4.6 DAH DA
Effective temperature [K] 10347.0 11050.0 (160) 10770.0 10770.0 10617.0 (373) 10860.0 10864.0 (101) 10818.0 (98) 10909.0 (102)
log(g) [cgs] 7.83 8.15 (0.09) 7.97 7.97 7.89 (0.06) 7.99 7.99 (0.08) 8.03 (0.09) 8.04 (0.08)
Mass [M] 0.505 0.69 (0.06) 0.538 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.4471 0.6026
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) 4.11 (0.2) 4.16 4.16 (0.1)
Distance [pc] 240.24 (8) 243.43 (11) 240.24 240.23 (8)
Composition H H
Proper motion (right ascension) [mas/yr] -2.164775765 (0.2) -2.219315832 (0.4) -2.165 (0.2) -0.6 -3.0
Proper motion (declination) [mas/yr] -52.85993104 (0.2) -53.1397299 (0.4) -52.86 (0.2) -53.4 -52.0
Variability VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.20 (0.3)
V magnitude 18.70 18.70 18.74
R magnitude 18.40 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.14 (0.02) 19.14 (0.03) 19.19 (0.03) 19.21 19.19 (0.03) 19.21 (0.03)
g magnitude 18.68 (0.009) 18.68 (0.009) 18.73 (0.02) 18.74 18.73 (0.02) 18.74 (0.01)
r magnitude 18.80 (0.01) 18.80 (0.01) 18.83 (0.02) 18.84 18.83 (0.02) 18.84 (0.02)
i magnitude 18.86 (0.02) 18.86 (0.02) 18.98 (0.02) 18.98 18.98 (0.02) 18.98 (0.02)
z magnitude 19.10 (0.06) 19.11 (0.06) 19.27 (0.06) 19.27 19.26 (0.05) 19.27 (0.06)
G magnitude 18.74 (0.02) 18.78 18.74 18.74 (0.003)
BP magnitude 18.81 (0.02) 18.76
RP magnitude 18.73 (0.02) 18.70
Pan g magnitude 18.72 (0.006)
Pan r magnitude 18.84 (0.009)
Pan i magnitude 19.01 (0.01)
Pan z magnitude 19.20 (0.02)
Pan y magnitude 19.23 (0.03)
E(B-V) 0.019
Period #1 [s] 1090.0 1122.4
Amplitude #1 [mma] 8 10.2
Period #2 [s] 1336.0 1248.4
Amplitude #2 [mma] 7.8 22.5

* 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.