All names: Gaia DR3 2389217983811119488, GD 1699, EC 23463-2140, GALEX J234856.9-212335, 2MASS J23485697-2123354, Gaia DR2 2389217983811119488, TIC 89527135, UCAC4 344-202145, EC23463-2140
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 23 48 56.99 | 23 48 56.97 (0.05) | ||
Declination | -21 23 35.05 | -21 23 35.32 (0.05) | ||
Spectral type | sdB | 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] | 0.41 (0.1) | 0.17 (0.06) | |
Distance | [pc] | 2463.05 (587) | 5952.38 (2214) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 7.907 (0.2) | 7.508 (0.06) | |
Proper motion (declination) | [mas/yr] | -6.036 (0.1) | -6.067 (0.05) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 15.91 (0.03) | |||
V magnitude | 15.96 (0.01) | |||
R magnitude | 15.96 | |||
I magnitude | ||||
J magnitude | 16.35 (0.1) | 16.35 (0.1) | ||
H magnitude | 16.18 (0.2) | 16.18 (0.2) | ||
K magnitude | 17.10 | |||
u magnitude | ||||
g magnitude | 15.82 (0.01) | |||
r magnitude | 16.14 (0.01) | |||
i magnitude | ||||
z magnitude | ||||
G magnitude | 15.98 (0.001) | 15.97 (0.003) | ||
BP magnitude | 15.89 (0.004) | |||
RP magnitude | 16.08 (0.004) | |||
Pan g magnitude | 15.85 (0.002) | |||
Pan r magnitude | 16.15 (0.005) | |||
Pan i magnitude | 16.42 (0.003) | |||
Pan z magnitude | 16.62 (0.006) | |||
Pan y magnitude | 16.72 (0.006) | |||
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.