All names: WDS J00494-8334A, Gaia EDR3 4617812054838446848, WDJ004920.31-833350.65, Gaia DR2 4617812054836337536, Gaia DR3 4617812054836337536, ** NSN 157A
Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|
Right ascension | 00 49 22.90 (0.1) | 00 49 20.85 | 00 49 20.87 | 00 49 20.30 (0.1) | 00 49 20.85 | ||
Declination | -83 33 55.62 (0.1) | -83 33 53.60 | -83 33 53.70 | -83 33 50.65 (0.1) | -83 33 53.60 | ||
Spectral type | DA: | DA | |||||
Effective temperature | [K] | 4808.0 (89) | |||||
log(g) | [cgs] | 8.04 (0.05) | |||||
Mass | [M☉] | 0.601 (0.04) | |||||
log(Luminosity) | [L☉] | ||||||
Cooling age | [Gyr] | ||||||
log(H/He) | |||||||
log(C/He) | |||||||
log(Ca/He) | |||||||
log(Ca/H) | |||||||
Parallax | [mas] | 18.13 (0.1) | 17.83 (0.2) | 17.93 | 17.93 (0.2) | 17.83 (0.2) | |
Distance | [pc] | 55.14 (0.4) | 56.07 (0.6) | 55.76 | 55.76 (0.5) | 56.07 (0.6) | |
Composition | |||||||
Proper motion (right ascension) | [mas/yr] | 57.91108942 (0.2) | 58.54811725 (0.4) | 59.305 (0.2) | 58.54811725 | ||
Proper motion (declination) | [mas/yr] | -191.5906576 (0.2) | -190.2277665 (0.3) | -190.426 (0.2) | -190.2277665 | ||
Variability | |||||||
Magnetic | |||||||
Bd | [MG] | ||||||
Infrared excess (disk) | |||||||
Binarity | |||||||
B magnitude | |||||||
V magnitude | |||||||
R magnitude | |||||||
I magnitude | |||||||
J magnitude | |||||||
H magnitude | |||||||
K magnitude | |||||||
u magnitude | |||||||
g magnitude | |||||||
r magnitude | |||||||
i magnitude | |||||||
z magnitude | |||||||
G magnitude | 18.79 (0.07) | 18.79 | 18.77 | 18.77 (0.003) | 18.79 | ||
BP magnitude | 19.61 (0.07) | 19.32 | 19.32 | ||||
RP magnitude | 18.30 (0.06) | 18.09 | 18.09 | ||||
Pan g magnitude | |||||||
Pan r magnitude | |||||||
Pan i magnitude | |||||||
Pan z magnitude | |||||||
Pan y magnitude | |||||||
E(B-V) | 0.003 |
* 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.