All names: Gaia DR3 3751775738329263488, TIC 308021325, EC10189-1502, 2MASS J10212176-1517173, GALEX J102121.8-151715, Gaia DR2 3751775738329263488, EC 10189-1502
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 10 21 21.70 | 10 21 21.76 (0.04) | ||
| Declination | -15 17 17.54 | -15 17 17.38 (0.04) | ||
| Spectral type | sdOB | sdB | ||
| Effective temperature | [K] | 37900.0 (1100) | ||
| log(g) | [cgs] | 5.43 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.86 (0.07) | 1.01 (0.06) | |
| Distance | [pc] | 1168.50 (96) | 990.49 (57) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.954 (0.1) | -5.689 (0.05) | |
| Proper motion (declination) | [mas/yr] | 8.823 (0.1) | 8.692 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.49 | |||
| V magnitude | 13.76 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.34 (0.03) | 14.34 (0.03) | ||
| H magnitude | 14.53 (0.06) | 14.53 (0.06) | ||
| K magnitude | 14.63 (0.1) | 14.63 (0.1) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 13.70 (0.0009) | 13.69 (0.003) | ||
| BP magnitude | 13.50 (0.02) | |||
| RP magnitude | 13.98 (0.002) | |||
| Pan g magnitude | 13.54 (0.0008) | |||
| Pan r magnitude | 13.96 (0.002) | |||
| Pan i magnitude | 14.32 (0.002) | |||
| Pan z magnitude | 14.60 (0.002) | |||
| Pan y magnitude | 14.78 (0.003) | |||
| E(B-V) | 0.042 | |||
* 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.