All names: TIC 371430790, 2MASS J15331073+0532268, PG1530+057, GSC 00358-00731, Gaia DR3 4428838819572713856, GALEX J153310.8+053228, UCAC2 33766087, PG 1530+057, Gaia DR2 4428838819572713856, HS 1530+0542
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 33 10.74 | 15 33 10.74 (0.02) | ||
| Declination | 05 32 26.80 | 05 32 26.85 (0.01) | ||
| 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] | 0.77 (0.03) | 0.75 (0.02) | |
| Distance | [pc] | 1307.02 (47) | 1335.11 (33) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -19.578 (0.05) | -19.507 (0.02) | |
| Proper motion (declination) | [mas/yr] | -12.458 (0.04) | -12.371 (0.01) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.36 (0) | |||
| V magnitude | 14.21 (0) | |||
| R magnitude | 14.05 (0) | |||
| I magnitude | 14.01 (0) | |||
| J magnitude | 13.49 (0.02) | 13.49 (0.02) | ||
| H magnitude | 13.27 (0.03) | 13.27 (0.03) | ||
| K magnitude | 13.28 (0.03) | 13.28 (0.03) | ||
| u magnitude | 14.48 (0.004) | |||
| g magnitude | 14.19 (0.004) | |||
| r magnitude | 14.24 (0.008) | |||
| i magnitude | 14.22 (0.004) | |||
| z magnitude | 14.25 (0.005) | |||
| G magnitude | 14.11 (0.0003) | 14.09 (0.003) | ||
| BP magnitude | 14.19 (0.004) | |||
| RP magnitude | 13.87 (0.001) | |||
| Pan g magnitude | 14.20 (0.002) | |||
| Pan r magnitude | 14.18 (0.001) | |||
| Pan i magnitude | 14.22 (0.002) | |||
| Pan z magnitude | 14.27 (0.007) | |||
| Pan y magnitude | 14.28 (0.002) | |||
| E(B-V) | 0.032 | |||
* 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.