WD 2040-392

All names: Gaia EDR3 6681773947733560192, 2MASS J20434921-3903182, L 495-82, WD 2040-392, TIC 389348640, Gaia DR2 6681773947733560192, WISEA J204349.18-390321.7, MCT 2040-3914, CNS5 5116, WDJ204349.21-390318.02, L495-82, NLTT 49752, Gaia DR3 6681773947733560192

Parameter Unit Gaia EDR3 O'Brien et al. 2024 Bergeron et al. 2021 Gaia DR2 Bedard et al. 2017 Stilism Holberg et al. 2016 Sion et al. 2014 Giammichele et al. 2012 Gianninas et al. 2011 Subasavage et al. 2009 Subasavage et al. 2007 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 20 43 49.20 (0.02) 20 43 49.20 (0.03) 20 43 49.20 20 43 49.21 20 43 49.21 20 43 49.20 20 43 49.21 (0.02) 20 43 49.20 20 43 49.10
Declination -39 03 23.63 (0.01) -39 03 23.45 (0.02) -39 03 18.00 -39 03 18.00 -39 03 18.00 -39 03 23.63 -39 03 18.02 (0.01) -39 03 23.45 -39 03 08.28
Spectral type DA DA DA DA DA4.5 DA DA DA DA4.5 DA DA4.5 DA
Effective temperature [K] 11228.0 (138) 10563.0 (165) 11029.0 (160) 10987.0 (163) 10830.0 11302.0 (163) 11300.0 (163) 10830.0 (310) 10811.0 (325) 11061.0 (50)
log(g) [cgs] 8.05 (0.02) 7.85 (0.07) 8.08 (0.05) 7.88 (0.04) 8.01 (0.04) 8.26 (0.04) 8.03 (0.04) 8.03 (0.006)
Mass [M] 0.632 (0.01) 0.52 (0.04) 0.65 (0.08) 0.54 (0.02) 0.61 (0.03) 0.76 (0.03) 0.62 (0.02) 0.619 (0.004)
log(Luminosity) [L] -2.62 -2.71 (0.02)
Cooling age [Gyr] 0.4558 0.4200 0.4400 0.5100 (0.02)
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] 42.84 (0.02) 42.84 (0.02) 42.78 (0.04) 44.18 (1) 44.18 (1) 44.18 (1) 42.84 42.84 (0.02) 42.78 (0.04) 44.10 (0.9)
Distance [pc] 23.35 (0.01) 23.34 (0.01) 23.00 23.38 (0.02) 22.60 (0.5) 22.63 (0.5) 22.63 22.60 (0.9) 26.00 22.63 (0.5) 23.10 23.35 23.35 (0.01) 23.38 (0.02) 22.68 (0.5)
Composition H H H H H H
Proper motion (right ascension) [mas/yr] -6.922128051 (0.02) -6.765468997 (0.07) -6.922 (0.02) -6.765468997
Proper motion (declination) [mas/yr] -350.6186443 (0.02) -350.5573569 (0.05) -350.619 (0.02) -350.5573569
Variability VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.29
V magnitude 13.74 13.74 13.74
R magnitude 13.77
I magnitude 13.68
J magnitude 13.78 (0.02) 13.77 (0.02) 13.78 (0.02)
H magnitude 13.82 (0.03) 13.82 (0.03) 13.82 (0.03)
K magnitude 13.81 (0.05) 13.81 (0.05) 13.81 (0.05)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 13.75 (0.003) 13.76 13.75 13.75 (0.003) 13.76
BP magnitude 13.77 (0.003) 13.76 13.76
RP magnitude 13.73 (0.002) 13.74 13.74
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.001

* 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.