All names: BPS BS 16541-0098, [TFW97] J153110.39+101500.80, TIC 393051271, LAMOST J153110.38+101501.0, Gaia DR2 1165963744033018496, 2MASS J15311038+1015010, SBC9 3338, USNO-A2.0 0975-07860965, Gaia DR3 1165963744033018496, PG 1528+104, PG1528+104, SDSS J153110.38+101501.0, GSC 00932-00044
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 31 10.45 | 15 31 10.39 (0.03) | ||
| Declination | 10 15 01.55 | 10 15 00.93 (0.02) | ||
| Spectral type | sdB+WD | sdB | ||
| Effective temperature | [K] | 27200.0 | ||
| log(g) | [cgs] | 5.46 | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.47 (0.05) | 1.46 (0.03) | |
| Distance | [pc] | 680.09 (22) | 686.62 (15) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -18.355 (0.07) | -18.173 (0.03) | |
| Proper motion (declination) | [mas/yr] | -10.644 (0.07) | -10.632 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.90 | |||
| V magnitude | 14.14 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.20 (0.03) | 14.20 (0.03) | ||
| H magnitude | 14.27 (0.04) | 14.27 (0.04) | ||
| K magnitude | 14.24 (0.08) | 14.24 (0.08) | ||
| u magnitude | 13.21 (0.003) | 13.21 (0.003) | ||
| g magnitude | 13.80 (0.004) | 13.80 (0.004) | ||
| r magnitude | 13.77 (0.003) | 13.77 (0.003) | ||
| i magnitude | 14.58 (0.009) | 14.58 (0.009) | ||
| z magnitude | 14.39 (0.004) | 14.39 (0.004) | ||
| G magnitude | 13.57 (0.002) | 13.55 (0.003) | ||
| BP magnitude | 13.39 (0.008) | |||
| RP magnitude | 13.78 (0.007) | |||
| Pan g magnitude | 13.39 (0.003) | |||
| Pan r magnitude | 13.81 (0.007) | |||
| Pan i magnitude | 14.15 (0.009) | |||
| Pan z magnitude | 14.43 (0.004) | |||
| Pan y magnitude | 14.49 (0.007) | |||
| E(B-V) | 0.031 | |||
* 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.