All names: 2MASS J21251583-7613095, UCAC4 069-035496, EC 21197-7626, Gaia DR2 6368692066173443200, TIC 404349545, GALEX J212515.6-761309, Gaia DR3 6368692066173443200, EC21197-7626
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 25 15.85 | 21 25 15.81 (0.03) | ||
| Declination | -76 13 08.90 | -76 13 09.60 (0.03) | ||
| Spectral type | sdB+F | sdB+F | ||
| 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] | 0.32 (0.04) | 0.37 (0.03) | |
| Distance | [pc] | 3095.02 (413) | 2674.51 (231) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 9.031 (0.07) | 8.744 (0.03) | |
| Proper motion (declination) | [mas/yr] | -3.433 (0.07) | -3.447 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.98 (0.01) | |||
| V magnitude | 15.82 (0.01) | |||
| R magnitude | 16.12 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.25 (0.05) | 15.25 (0.05) | ||
| H magnitude | 15.16 (0.08) | 15.16 (0.08) | ||
| K magnitude | 14.91 (0.1) | 14.91 (0.1) | ||
| u magnitude | ||||
| g magnitude | 15.89 (0.04) | |||
| r magnitude | 15.93 (0.02) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.80 (0.0007) | 15.78 (0.003) | ||
| BP magnitude | 15.87 (0.004) | |||
| RP magnitude | 15.59 (0.004) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.049 | |||
* 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.