SDSS J164306.06+442638.1

All names: Gaia DR3 1405844569526291200, Gaia EDR3 1405844569526291200, SDSS J164306.06+442638.1, WD 1641+445, GALEX J164306.0+442638, SDSS J164306.05+442638.0, Gaia DR2 1405844569526291200, SDSS J164306.03+442638.5, USNO-A2.0 1275-09037504

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 Vincent et al. 2023
Right ascension 16 43 06.02 (0.1) 16 43 06.05 16 43 06.02 (0.1) 16 43 06.02 16 43 06.05 (0.1) 16 43 06.05 16 43 05.88 16 43 06.06
Declination 44 26 38.67 (0.1) 44 26 38.09 44 26 38.65 (0.2) 44 26 38.67 44 26 38.04 (0.1) 44 26 38.09 44 26 33.00 44 26 38.11
Spectral type DA+DB/DC DA DA+DB/DC DA: DA: DA: DA
Effective temperature [K] 9527.0 10165.0 (240) 10238.0 (135) 10263.0 (130)
log(g) [cgs] 7.55 7.80 (0.05) 8.56 (0.3) 8.35 (0.3)
Mass [M] 0.374 0.489 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.4187
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] 5.20 (0.1) 4.88 (0.2) 5.20 5.20 (0.1)
Distance [pc] 192.20 (5) 204.92 (7) 192.20 192.20 (5)
Composition H
Proper motion (right ascension) [mas/yr] -21.77404688 (0.1) -21.59089505 (0.3) -21.774 (0.1) -16.8
Proper motion (declination) [mas/yr] 39.87738516 (0.2) 40.19475616 (0.5) 39.877 (0.2) 38.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.90 (0.3)
V magnitude
R magnitude 18.20 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.38 (0.01) 18.38 (0.01) 18.39 (0.02) 18.38 18.38 (0.02)
g magnitude 18.23 (0.006) 18.23 (0.006) 18.24 (0.01) 18.23 18.23 (0.01)
r magnitude 18.32 (0.007) 18.32 (0.007) 18.33 (0.02) 18.32 18.33 (0.02)
i magnitude 18.43 (0.01) 18.43 (0.01) 18.43 (0.02) 18.41 18.43 (0.02)
z magnitude 18.65 (0.04) 18.66 (0.04) 18.63 (0.04) 18.61 18.64 (0.04)
G magnitude 18.24 (0.02) 18.27 18.24 18.24 (0.003)
BP magnitude 18.30 (0.02) 18.28
RP magnitude 18.20 (0.02) 18.18
Pan g magnitude 18.27 (0.005)
Pan r magnitude 18.34 (0.008)
Pan i magnitude 18.49 (0.006)
Pan z magnitude 18.63 (0.01)
Pan y magnitude 18.71 (0.02)
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.