All names: SDSS J221958.39-083819.8, 2MASS J22195838-0838198, UCAC4 407-136968, PHL224, Gaia DR2 2616240643588448768, PHL 224, BPS CS 29512-0055, UCAC2 28836797, TIC 38353955, Gaia DR3 2616240643588448768
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 19 58.36 | 22 19 58.39 (0.04) | ||
| Declination | -08 38 19.61 | -08 38 19.95 (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] | 0.17 (0.06) | 0.27 (0.04) | |
| Distance | [pc] | 5885.82 (2103) | 3753.75 (603) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 11.572 (0.1) | 11.397 (0.05) | |
| Proper motion (declination) | [mas/yr] | -5.93 (0.1) | -6.057 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.01 (0.01) | |||
| V magnitude | 15.10 (0) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.20 (0.04) | 15.20 (0.04) | ||
| H magnitude | 15.23 (0.1) | 15.23 (0.1) | ||
| K magnitude | 15.36 (0.2) | 15.36 (0.2) | ||
| u magnitude | 15.35 (0.004) | 15.32 (0.01) | ||
| g magnitude | 14.89 (0.003) | 14.91 (0.02) | ||
| r magnitude | 15.18 (0.003) | 15.19 (0.01) | ||
| i magnitude | 15.42 (0.004) | 15.41 (0.01) | ||
| z magnitude | 15.62 (0.007) | 15.62 (0.02) | ||
| G magnitude | 15.08 (0.0009) | 15.06 (0.003) | ||
| BP magnitude | 15.01 (0.007) | |||
| RP magnitude | 15.13 (0.004) | |||
| Pan g magnitude | 14.95 (0.005) | |||
| Pan r magnitude | 15.22 (0.003) | |||
| Pan i magnitude | 15.47 (0.001) | |||
| Pan z magnitude | 15.65 (0.008) | |||
| Pan y magnitude | 15.73 (0.006) | |||
| E(B-V) | 0.052 | |||
* 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.