All names: EC 21076-4047, TIC 159638892, BPS CS 22937-0036, Gaia DR3 6581575006418103552, BPS CS 30492-0062, Gaia EDR3 6581574181783090304, BPSCS22937-36, Gaia DR2 6581575006418103552, UCAC4 248-189213, 2MASS J21105468-4035070
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 10 58.86 (0.5) | 21 10 54.68 | 21 10 54.69 (0.03) | ||
| Declination | -40 36 44.47 (0.4) | -40 35 07.19 | -40 35 07.08 (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] | 1.43 (0.8) | 0.53 (0.06) | 0.46 (0.05) | |
| Distance | [pc] | 699.55 (367) | 1890.00 (221) | 2195.87 (221) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.526 (0.6) | -8.095 (0.08) | -7.697 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.207 (0.6) | -1.255 (0.07) | -1.647 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.19 (0.02) | ||||
| V magnitude | 15.28 (0.04) | ||||
| R magnitude | 15.57 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.19 (0.05) | 15.19 (0.05) | |||
| H magnitude | 14.93 (0.07) | 14.93 (0.07) | |||
| K magnitude | 14.86 (0.1) | 14.86 (0.1) | |||
| u magnitude | |||||
| g magnitude | 15.13 (0.01) | ||||
| r magnitude | 15.47 (0.06) | ||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 20.17 (0.006) | 15.24 (0.0005) | 15.22 (0.003) | ||
| BP magnitude | 20.44 (0.07) | 15.09 (0.006) | |||
| RP magnitude | 19.66 (0.06) | 15.29 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.022 | ||||
* 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.