All names: 2MASS J21423379-2948592, Gaia DR2 6785485931778326144, TIC 209397773, Gaia DR3 6785485931778326144, GALEXJ21425-2948, WISE J214233.81-294859.2, GALEX J214233.8-294858, WISEA J214233.81-294859.4, UCAC4 301-272345, UCAC2 19552611
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 21 42 33.79 | 21 42 33.80 (0.02) | ||
Declination | -29 48 58.81 | -29 48 59.24 (0.02) | ||
Spectral type | sdB+MS | sdB+? | ||
Effective temperature | [K] | |||
log(g) | [cgs] | |||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 1.75 (0.06) | 1.74 (0.03) | |
Distance | [pc] | 572.70 (19) | 573.99 (9) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 15.426 (0.08) | 15.504 (0.03) | |
Proper motion (declination) | [mas/yr] | -23.425 (0.07) | -23.791 (0.02) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 13.01 (0.01) | |||
V magnitude | 12.79 (0.01) | |||
R magnitude | 12.88 (0.06) | |||
I magnitude | ||||
J magnitude | 12.00 (0.02) | 12.00 (0.02) | ||
H magnitude | 11.77 (0.03) | 11.77 (0.03) | ||
K magnitude | 11.71 (0.03) | 11.71 (0.03) | ||
u magnitude | ||||
g magnitude | 12.85 (0.01) | |||
r magnitude | ||||
i magnitude | ||||
z magnitude | ||||
G magnitude | 12.73 (0.001) | 12.73 (0.003) | ||
BP magnitude | 12.84 (0.006) | |||
RP magnitude | 12.46 (0.004) | |||
Pan g magnitude | 13.01 | |||
Pan r magnitude | 12.79 | |||
Pan i magnitude | 12.76 | |||
Pan z magnitude | 12.79 | |||
Pan y magnitude | 12.79 (0.002) | |||
E(B-V) | 0.031 |
* 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.