All names: 2MASS J21453566-6237390, Gaia DR3 6402944292920483584, Gaia EDR3 6402944292920483584, BPS CS 22956-0032, TIC 406280054, BPSCS22956-32, Gaia DR2 6402944292920483584, GALEX J214535.5-623739, EC 21418-6251, TIC 2026429341
Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|---|
Right ascension | 21 45 35.52 (0.02) | 21 45 35.53 | 21 45 35.53 (0.02) | ||
Declination | -62 37 39.59 (0.03) | -62 37 39.21 | -62 37 39.51 (0.03) | ||
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] | 0.84 (0.04) | 0.71 (0.07) | 0.84 (0.04) | |
Distance | [pc] | 1197.32 (56) | 1401.93 (131) | 1197.32 (56) | |
Composition | |||||
Proper motion (right ascension) | [mas/yr] | -4.19 (0.02) | -4.108 (0.06) | -4.19 (0.02) | |
Proper motion (declination) | [mas/yr] | -5.084 (0.03) | -5.07 (0.08) | -5.084 (0.04) | |
Variability | |||||
Magnetic | |||||
Bd | [MG] | ||||
Infrared excess (disk) | |||||
Binarity | |||||
B magnitude | 14.64 | ||||
V magnitude | 14.80 | ||||
R magnitude | |||||
I magnitude | |||||
J magnitude | 15.13 (0.05) | 15.13 (0.05) | |||
H magnitude | 14.94 (0.07) | 14.94 (0.07) | |||
K magnitude | 14.77 (0.1) | 14.77 (0.1) | |||
u magnitude | |||||
g magnitude | |||||
r magnitude | |||||
i magnitude | |||||
z magnitude | |||||
G magnitude | 14.86 (0.003) | 14.88 (0.0005) | 14.86 (0.003) | ||
BP magnitude | 14.72 (0.004) | 14.67 (0.006) | |||
RP magnitude | 15.03 (0.007) | 15.03 (0.007) | |||
Pan g magnitude | |||||
Pan r magnitude | |||||
Pan i magnitude | |||||
Pan z magnitude | |||||
Pan y magnitude | |||||
E(B-V) | 0.018 |
* 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.