WD 1641+458

All names: Gaia DR3 1406191980841037056, WD 1641+458, GALEX J164238.7+454415, Gaia EDR3 1406191980841037056, Gaia DR2 1406191980841037056, SDSS J164238.70+454415.7, SDSS J164238.70+454415.6

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 16 42 38.71 (0.1) 16 42 38.71 16 42 38.71 (0.1) 16 42 38.71 16 42 38.70 (0.1) 16 42 38.71 16 42 38.06 16 42 38.70 16 42 38.70
Declination 45 44 15.25 (0.1) 45 44 15.70 45 44 15.27 (0.2) 45 44 15.25 45 44 15.73 (0.1) 45 44 15.71 45 44 13.20 45 44 15.72 45 44 15.72
Spectral type DA DA DA5 DA DA5.2 DA DA
Effective temperature [K] 9201.0 9351.0 (294) 9760.0 (76) 9651.0 (76) 9785.0 (74)
log(g) [cgs] 7.89 7.91 (0.06) 8.22 (0.1) 8.16 (0.1) 8.23 (0.1)
Mass [M] 0.537 0.549 (0.05) 0.691 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.6519
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] 5.47 (0.1) 5.45 (0.2) 5.47 5.47 (0.1)
Distance [pc] 182.92 (4) 183.40 (6) 182.92 182.93 (4)
Composition H
Proper motion (right ascension) [mas/yr] 3.780446465 (0.1) 4.134368475 (0.3) 3.78 (0.1) 2.5 1.0
Proper motion (declination) [mas/yr] -30.1341093 (0.2) -29.92030915 (0.5) -30.134 (0.2) -30.9 -29.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.12 (0.02) 19.12 (0.02) 19.05 (0.03) 19.06 19.06 (0.03) 19.06 (0.03)
g magnitude 18.64 (0.008) 18.64 (0.008) 18.65 (0.02) 18.64 18.65 (0.02) 18.64 (0.02)
r magnitude 18.70 (0.009) 18.70 (0.009) 18.69 (0.01) 18.68 18.69 (0.01) 18.68 (0.01)
i magnitude 18.81 (0.01) 18.81 (0.01) 18.81 (0.01) 18.80 18.80 (0.01) 18.80 (0.02)
z magnitude 18.97 (0.04) 18.97 (0.04) 18.98 (0.04) 18.96 18.97 (0.04) 18.96 (0.04)
G magnitude 18.62 (0.02) 18.64 18.62 18.62 (0.003)
BP magnitude 18.70 (0.02) 18.72
RP magnitude 18.49 (0.03) 18.52
Pan g magnitude 18.65 (0.008)
Pan r magnitude 18.69 (0.007)
Pan i magnitude 18.80 (0.007)
Pan z magnitude 18.94 (0.009)
Pan y magnitude 18.98 (0.04)
E(B-V) 0.017

* 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.