All names: UCAC4 408-062474, TIC 79230926, PG 1509-083, Gaia DR2 6320458243408871808, UCAC2 28925212, BPS BS 16551-0007, Gaia DR3 6320458243408871808, PG1509-083, Gaia EDR3 6320458243408871808, 2MASS J15122399-0827401
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 12 23.97 (0.04) | 15 12 24.04 | 15 12 23.99 (0.04) | ||
| Declination | -08 27 40.22 (0.03) | -08 27 40.29 | -08 27 40.40 (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] | 0.99 (0.05) | 0.99 (0.08) | 0.99 (0.05) | |
| Distance | [pc] | 1010.10 (47) | 1008.47 (79) | 1010.10 (47) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -17.697 (0.04) | -17.903 (0.1) | -17.697 (0.04) | |
| Proper motion (declination) | [mas/yr] | 11.712 (0.04) | 11.88 (0.1) | 11.712 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.48 (0.01) | ||||
| V magnitude | 14.65 (0.01) | ||||
| R magnitude | 14.87 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.03 (0.05) | 15.03 (0.05) | |||
| H magnitude | 15.18 (0.09) | 15.18 (0.09) | |||
| K magnitude | 15.23 | ||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 14.66 (0.003) | 14.67 (0.0008) | 14.66 (0.003) | ||
| BP magnitude | 14.54 (0.005) | 14.51 (0.01) | |||
| RP magnitude | 14.82 (0.007) | 14.82 (0.009) | |||
| Pan g magnitude | 14.49 (0.001) | ||||
| Pan r magnitude | 14.85 (0.002) | ||||
| Pan i magnitude | 15.16 (0.003) | ||||
| Pan z magnitude | 15.39 (0.004) | ||||
| Pan y magnitude | 15.53 (0.004) | ||||
| E(B-V) | 0.094 | ||||
* 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.