All names: TIC 205647883, 2MASS J21303983-0303431, Gaia DR3 2672744889737655424, GALEX J213039.8-030343, UCAC4 435-116511, UCAC2 30776749, Gaia DR2 2672744889737655424, PHL 17, PHL17
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 30 39.87 | 21 30 39.84 (0.03) | ||
| Declination | -03 03 43.40 | -03 03 43.10 (0.02) | ||
| Spectral type | sdOB | sdOB | ||
| 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] | 0.91 (0.05) | 1.07 (0.03) | |
| Distance | [pc] | 1104.48 (65) | 936.15 (28) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -8.479 (0.09) | -8.497 (0.04) | |
| Proper motion (declination) | [mas/yr] | -1.368 (0.08) | -1.452 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.85 (0.01) | |||
| V magnitude | 14.03 (0.01) | |||
| R magnitude | 14.15 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.68 (0.03) | 13.68 (0.03) | ||
| H magnitude | 13.42 (0.03) | 13.42 (0.03) | ||
| K magnitude | 13.40 (0.04) | 13.40 (0.04) | ||
| u magnitude | 13.69 (0.003) | |||
| g magnitude | 13.73 (0.003) | 13.78 (0.01) | ||
| r magnitude | 13.99 (0.003) | 14.18 (0.01) | ||
| i magnitude | 14.15 (0.004) | 14.29 (0.01) | ||
| z magnitude | 14.28 (0.005) | |||
| G magnitude | 13.86 (0.0009) | 13.84 (0.003) | ||
| BP magnitude | 13.80 (0.007) | |||
| RP magnitude | 13.85 (0.004) | |||
| Pan g magnitude | 13.81 (0.003) | |||
| Pan r magnitude | 14.04 (0.004) | |||
| Pan i magnitude | 14.20 (0.002) | |||
| Pan z magnitude | 14.31 (0.003) | |||
| Pan y magnitude | 14.38 (0.002) | |||
| E(B-V) | 0.035 | |||
* 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.