All names: RE J164341+411722, PG 1642+414, RE J1643+411, TIC 57229789, 2MASS J16434185+4116589, WD 1642+413, SDSS J164341.83+411659.4, LAMOST J164341.93+411700.2, Gaia EDR3 1356434445415005184, GALEX J164341.9+411700, Gaia DR2 1356434445415005184, Gaia DR3 1356434445415005184, FBS B 375, FBS 1642+413
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 16 43 41.80 (0.03) | 16 43 41.80 (0.05) | 16 43 41.80 | 16 43 41.84 (0.03) | 16 43 43.32 | ||||||
Declination | 41 16 59.92 (0.04) | 41 16 59.90 (0.06) | 41 16 59.92 | 41 16 59.39 (0.04) | 41 16 53.40 | ||||||
Spectral type | DA | DA | DA | DA | DA1.7 | DA2 | |||||
Effective temperature | [K] | 28626.0 | 29520.0 (461) | 32120.0 (809) | |||||||
log(g) | [cgs] | 8.31 | 8.26 (0.06) | 8.45 (0.02) | |||||||
Mass | [M☉] | 0.825 | 0.8 (0.03) | 0.917 (0.02) | |||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 0.0295 | |||||||||
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] | 7.49 (0.04) | 7.44 (0.06) | 7.49 | 7.49 (0.04) | ||||||
Distance | [pc] | 133.54 (0.8) | 134.40 (1) | 144.00 | 133.54 | 133.55 (0.8) | |||||
Composition | H | H | |||||||||
Proper motion (right ascension) | [mas/yr] | -28.06239219 (0.05) | -28.10159643 (0.1) | -28.062 (0.05) | |||||||
Proper motion (declination) | [mas/yr] | 33.09655796 (0.06) | 33.20974355 (0.2) | 33.097 (0.06) | |||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | 16.08 | ||||||||||
V magnitude | |||||||||||
R magnitude | |||||||||||
I magnitude | |||||||||||
J magnitude | 16.72 (0.1) | ||||||||||
H magnitude | |||||||||||
K magnitude | |||||||||||
u magnitude | 15.72 (0.005) | ||||||||||
g magnitude | 15.96 (0.003) | ||||||||||
r magnitude | 16.44 (0.004) | ||||||||||
i magnitude | 16.78 (0.005) | ||||||||||
z magnitude | 17.15 (0.01) | ||||||||||
G magnitude | 16.21 (0.003) | 16.23 | 16.21 | 16.21 (0.003) | |||||||
BP magnitude | 16.08 (0.003) | 16.04 | |||||||||
RP magnitude | 16.48 (0.004) | 16.48 | |||||||||
Pan g magnitude | 16.02 (0.004) | ||||||||||
Pan r magnitude | 16.44 (0.004) | ||||||||||
Pan i magnitude | 16.81 (0.004) | ||||||||||
Pan z magnitude | 17.08 (0.005) | ||||||||||
Pan y magnitude | 17.29 (0.01) | ||||||||||
E(B-V) | 0.016 |
* Constant surface field
Spectra without link are available upon request
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.