All names: TIC 152286180, GALEX J215759.6-333506, UCAC2 17624250, Gaia DR2 6588673900161571584, DENIS J215759.6-333505, Gaia DR3 6588673900161571584, 2MASS J21575970-3335057, GALEXJ21579-3335, UCAC4 283-224412, WISEA J215759.78-333506.6, WISE J215759.79-333506.6
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 21 57 59.67 | 21 57 59.70 (0.04) | ||
Declination | -33 35 06.13 | -33 35 06.01 (0.04) | ||
Spectral type | He-sdOB | sdOBHe | ||
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] | 0.56 (0.1) | 0.38 (0.05) | |
Distance | [pc] | 1795.01 (307) | 2608.24 (337) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 5.214 (0.1) | 5.47 (0.05) | |
Proper motion (declination) | [mas/yr] | -11.201 (0.1) | -11.095 (0.05) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 14.96 (0.05) | |||
V magnitude | 15.18 (0.06) | |||
R magnitude | ||||
I magnitude | 15.52 (0.06) | |||
J magnitude | 15.88 (0.09) | 15.88 (0.09) | ||
H magnitude | 16.11 (0.2) | 16.11 (0.2) | ||
K magnitude | 16.47 | |||
u magnitude | ||||
g magnitude | 14.96 (0.01) | |||
r magnitude | 15.41 (0.01) | |||
i magnitude | ||||
z magnitude | ||||
G magnitude | 15.16 (0.001) | 15.15 (0.003) | ||
BP magnitude | 14.90 (0.009) | |||
RP magnitude | 15.47 (0.003) | |||
Pan g magnitude | 15.20 | |||
Pan r magnitude | 15.62 | |||
Pan i magnitude | 15.76 (0.004) | |||
Pan z magnitude | 16.20 | |||
Pan y magnitude | 16.41 | |||
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.