All names: WISEA J184120.23+444443.8, UCAC4 674-065985, Gaia DR2 2117573255233733632, TIC 351799167, Gaia DR3 2117573255233733632, 2MASS J18412026+4444443, WISE J184120.22+444443.9
Parameter | Unit | Vincent et al. 2024 | Simbad |
---|---|---|---|
Right ascension | 18 41 20.26 | 18 41 20.27 (0.03) | |
Declination | 44 44 43.58 | 44 44 44.28 (0.04) | |
Spectral type | DA | DA | |
Effective temperature | [K] | 15493.0 (212) | |
log(g) | [cgs] | 8.04 (0.01) | |
Mass | [M☉] | 0.64 (0.01) | |
log(Luminosity) | [L☉] | ||
Cooling age | [Gyr] | ||
log(H/He) | |||
log(C/He) | |||
log(Ca/He) | |||
log(Ca/H) | |||
Parallax | [mas] | 9.78 | 9.78 (0.04) |
Distance | [pc] | 102.27 | 102.27 (0.4) |
Composition | |||
Proper motion (right ascension) | [mas/yr] | -9.724 (0.04) | |
Proper motion (declination) | [mas/yr] | -44.094 (0.05) | |
Variability | |||
Magnetic | |||
Bd | [MG] | ||
Infrared excess (disk) | |||
Binarity | |||
B magnitude | 16.14 (0.06) | ||
V magnitude | 16.40 (0.06) | ||
R magnitude | |||
I magnitude | |||
J magnitude | 16.67 (0.1) | ||
H magnitude | |||
K magnitude | |||
u magnitude | |||
g magnitude | 16.12 (0.01) | ||
r magnitude | 16.51 (0.06) | ||
i magnitude | |||
z magnitude | |||
G magnitude | 16.39 | 16.39 (0.003) | |
BP magnitude | |||
RP magnitude | |||
Pan g magnitude | |||
Pan r magnitude | |||
Pan i magnitude | |||
Pan z magnitude | |||
Pan y magnitude | |||
E(B-V) |
* 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.