SDSS J140410.72+362056.8

All names: WDJ140410.77+362057.11, WD 1402+365, Gaia DR3 1483427385588999936, Gaia EDR3 1483427385588999936, USNO-B1.0 1263-00218861, Gaia DR2 1483427385588999936, SDSS J140410.72+362056.8, LSPM J1404+3620, J1404+3620

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Blouin 2020 Coutu et al. 2019 Gaia DR2 Stilism Hollands et al. 2017 Koester et al. 2011 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 04 10.56 (0.07) 14 04 10.72 14 04 10.77 14 04 10.57 (0.08) 14 04 10.56 14 04 10.77 (0.07) 14 04 10.57 14 04 10.51 14 04 10.72
Declination 36 20 55.81 (0.1) 36 20 56.83 36 20 57.11 36 20 55.85 (0.1) 36 20 55.81 36 20 57.12 (0.1) 36 20 55.85 36 20 51.00 36 20 56.84
Spectral type DZ DZ DZ DZ DZ DZ DZ DZ DZ DZ DZ DZ
Effective temperature [K] 6117.0 (33) 6310.0 (44) 6284.0 (124) 6448.0 (45) 5900.0 (70) 5900.0 6296.0 (91) 6300.0 (3)
log(g) [cgs] 8.13 (0.02) 8.20 (0.02) 8.22 (0.03) 8.27 8.00 (0) 8.19 (0.03) 10.00 (0.003)
Mass [M] 0.655 (0.01) 0.7 (0.02) 0.709 (0.02) 0.7472 0.693 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 3.3300 3.5600 3.5000
log(H/He) -5.0 -3.0 <-3.1079
log(C/He)
log(Ca/He) -9.81 -9.14 -8.7 (0.1) -8.8543 (0.08) -9.2 -9.6
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He) -7.3 (0.1) -7.9 -7.9
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He) -8.3 (0.2) -8.5 -8.6
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 12.39 (0.1) 12.24 (0.2) 12.24 12.24 (0.2) 12.39 12.39 (0.1) 12.24 (0.2)
Distance [pc] 80.71 (1) 81.70 (1) 81.54 (1) 81.70 (1) 81.70 (1) 77.00 (1e+01) 80.71 80.71 (1) 81.70 (1)
Composition He He He He He
Proper motion (right ascension) [mas/yr] -151.8391439 (0.08) -151.839317 (0.1) -151.839 (0.08) -151.839
Proper motion (declination) [mas/yr] -81.82582158 (0.1) -81.57512385 (0.2) -81.826 (0.1) -81.575
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.10
V magnitude
R magnitude 18.60
I magnitude
J magnitude 17.92 (0.07)
H magnitude
K magnitude
u magnitude 20.00 (0.04) 19.97 (0.04) 20.01 (0.04) 20.01 (0.04) 20.01 (0.04) 20.00 (0.04) 20.00 (0.04) 20.00 20.01 (0.04)
g magnitude 18.78 (0.008) 18.83 (0.03) 18.83 (0.03) 18.82 (0.03) 18.78 (0.008) 18.78 (0.008) 18.81 18.82 (0.03)
r magnitude 18.47 (0.008) 18.45 (0.02) 18.45 (0.02) 18.45 (0.02) 18.47 (0.008) 18.47 (0.008) 18.45 18.45 (0.02)
i magnitude 18.51 (0.01) 18.51 (0.02) 18.51 (0.02) 18.52 (0.02) 18.51 (0.01) 18.51 (0.01) 18.52 18.52 (0.02)
z magnitude 18.71 (0.03) 18.70 (0.03) 18.70 (0.03) 18.69 (0.03) 18.70 (0.03) 18.70 (0.03) 18.69 18.69 (0.03)
G magnitude 18.54 (0.01) 18.56 18.54 18.54 (0.003) 18.56
BP magnitude 18.77 (0.01) 18.81 18.81
RP magnitude 18.24 (0.02) 18.22 18.22
Pan g magnitude 18.71 (0.004) 18.71 (0.004)
Pan r magnitude 18.50 (0.01) 18.50 (0.009)
Pan i magnitude 18.53 (0.005) 18.53 (0.006)
Pan z magnitude 18.64 (0.009) 18.64 (0.009)
Pan y magnitude 18.70 (0.02) 18.70 (0.02)
E(B-V) 0.006

* 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.