All names: Gaia DR2 1164883851816155904, PG 1536+097B, 2MASS J15392443+0933283, GALEX J153924.4+093327, PG1536+097B, Gaia DR3 1164883851816155904, BPS BS 16939-0046, TIC 460433499
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 39 24.46 | 15 39 24.44 (0.2) | ||
| Declination | 09 33 28.14 | 09 33 28.27 (0.2) | ||
| 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 (0.2) | 0.09 (0.2) | |
| Distance | [pc] | 5903.19 (6569) | 10857.76 (25182) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -7.205 (0.3) | -7.364 (0.3) | |
| Proper motion (declination) | [mas/yr] | 1.333 (0.3) | 1.366 (0.2) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.54 (0.03) | 14.54 (0.03) | ||
| H magnitude | 14.35 (0.04) | 14.35 (0.04) | ||
| K magnitude | 14.61 (0.1) | 14.61 (0.1) | ||
| u magnitude | 14.84 (0.004) | |||
| g magnitude | 14.66 (0.003) | |||
| r magnitude | 14.86 (0.003) | |||
| i magnitude | 15.01 (0.004) | |||
| z magnitude | 15.13 (0.005) | |||
| G magnitude | 14.76 (0.0007) | 14.76 (0.003) | ||
| BP magnitude | 14.72 (0.005) | |||
| RP magnitude | 14.68 (0.002) | |||
| Pan g magnitude | 14.70 (0.003) | |||
| Pan r magnitude | 14.88 (0.001) | |||
| Pan i magnitude | 15.02 (0.002) | |||
| Pan z magnitude | 15.14 (0.004) | |||
| Pan y magnitude | 15.21 (0.004) | |||
| 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.