All names: Gaia DR2 2086392484163910656, WDJ194914.58+473445.90, Gaia EDR3 2086392484165035136, KIC 10420021, Gaia DR3 2086392484165035136, 2MASS J19491458+4734460, J1949+4734, TIC 273048383, LAMOST J194914.58+473445.9, WDJ194914.58+473445.91, EQ J1949.2+4734
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Vincent et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 19 49 14.55 (0.04) | 19 49 14.55 | 19 49 14.55 | 19 49 14.58 (0.04) | 19 49 14.55 | ||||||
Declination | 47 34 45.71 (0.04) | 47 34 45.72 | 47 34 45.71 | 47 34 45.91 (0.04) | 47 34 45.72 | ||||||
Spectral type | DA | DA | |||||||||
Effective temperature | [K] | 11911.0 (88) | 11911.0 | 12692.0 | 13192.0 (134) | ||||||
log(g) | [cgs] | 7.94 | 7.96 | 8.04 (0.009) | |||||||
Mass | [M☉] | 0.57 (0.006) | 0.57 | 0.564 | 0.629 (0.007) | ||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 0.3516 | 0.3095 | ||||||||
log(H/He) | |||||||||||
log(C/He) | |||||||||||
log(Ca/He) | |||||||||||
log(Ca/H) | |||||||||||
Parallax | [mas] | 12.65 (0.04) | 12.61 (0.04) | 12.65 | 12.65 (0.04) | 12.61 (0.04) | |||||
Distance | [pc] | 79.08 (0.3) | 79.28 (0.3) | 79.08 | 79.08 (0.3) | 79.28 (0.3) | |||||
Composition | |||||||||||
Proper motion (right ascension) | [mas/yr] | -20.86477032 (0.05) | -21.01838049 (0.08) | -20.865 (0.05) | -21.01838049 | ||||||
Proper motion (declination) | [mas/yr] | -12.20955604 (0.05) | -12.15771739 (0.09) | -12.21 (0.05) | -12.15771739 | ||||||
Variability | NOV | ||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | |||||||||||
V magnitude | |||||||||||
R magnitude | |||||||||||
I magnitude | |||||||||||
J magnitude | 16.21 (0.08) | ||||||||||
H magnitude | 16.24 (0.2) | ||||||||||
K magnitude | 16.12 | ||||||||||
u magnitude | |||||||||||
g magnitude | |||||||||||
r magnitude | |||||||||||
i magnitude | |||||||||||
z magnitude | |||||||||||
G magnitude | 16.11 (0.003) | 16.12 | 16.11 | 16.11 (0.003) | 16.12 | ||||||
BP magnitude | 16.10 (0.003) | 16.10 | 16.10 | ||||||||
RP magnitude | 16.14 (0.004) | 16.15 | 16.15 | ||||||||
Pan g magnitude | 16.04 (0.003) | ||||||||||
Pan r magnitude | 16.23 (0.003) | ||||||||||
Pan i magnitude | 16.45 (0.002) | ||||||||||
Pan z magnitude | 16.67 (0.004) | ||||||||||
Pan y magnitude | 16.79 (0.01) | ||||||||||
E(B-V) | 0.007 |
* 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.