All names: TIC 370242180, Gaia DR2 6412318385460665984, 2MASS J21553787-5738306, Gaia DR3 6412318385460665984, EC21521-5752, EC 21521-5752, GALEX J215537.6-573830, UCAC4 162-209642, Gaia EDR3 6412318385460665984
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 55 37.90 (0.02) | 21 55 37.99 | 21 55 37.89 (0.02) | ||
| Declination | -57 38 30.91 (0.02) | -57 38 30.44 | -57 38 30.64 (0.02) | ||
| 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] | 1.02 (0.03) | 0.93 (0.06) | 1.02 (0.03) | |
| Distance | [pc] | 977.80 (32) | 1076.89 (68) | 977.80 (32) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 3.597 (0.03) | 3.568 (0.08) | 3.597 (0.03) | |
| Proper motion (declination) | [mas/yr] | -16.986 (0.03) | -17.135 (0.08) | -16.986 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.24 (0.01) | ||||
| V magnitude | 14.50 (0.03) | ||||
| R magnitude | 14.72 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.02 (0.05) | 15.02 (0.05) | |||
| H magnitude | 15.05 (0.09) | 15.05 (0.09) | |||
| K magnitude | 15.12 (0.1) | 15.12 (0.1) | |||
| u magnitude | |||||
| g magnitude | 14.24 (0.01) | ||||
| r magnitude | 14.70 (0.01) | ||||
| i magnitude | 15.04 (0.02) | ||||
| z magnitude | |||||
| G magnitude | 14.46 (0.003) | 14.48 (0.0006) | 14.46 (0.003) | ||
| BP magnitude | 14.32 (0.003) | 14.26 (0.008) | |||
| RP magnitude | 14.72 (0.004) | 14.72 (0.003) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.015 | ||||
* 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.