All names: Gaia DR2 1165536789924111616, SDSS J152852.27+093144.2, SDSSJ152852.27+093144.2, LAMOST J152852.18+093144.3, Gaia DR3 1165536789924111616, SDSS J152852.27+093144.3, GALEX J152852.1+093144, Gaia EDR3 1165536789924111616, LAMOST J152852.27+093144.2
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 28 52.27 (0.05) | 15 28 52.27 | 15 28 52.28 (0.05) | ||
| Declination | 09 31 44.24 (0.04) | 09 31 44.20 | 09 31 44.28 (0.04) | ||
| Spectral type | sdB | sdOB | |||
| Effective temperature | [K] | 32580.0 (915) | |||
| log(g) | [cgs] | 5.85 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.36 (0.06) | 0.43 (0.08) | 0.36 (0.06) | |
| Distance | [pc] | 2783.19 (476) | 2327.75 (443) | 2783.19 (476) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -6.524 (0.07) | -6.758 (0.1) | -6.524 (0.07) | |
| Proper motion (declination) | [mas/yr] | -2.837 (0.06) | -2.857 (0.1) | -2.837 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 17.15 (0.01) | ||||
| H magnitude | 17.22 (0.03) | ||||
| K magnitude | 17.34 (0.05) | ||||
| u magnitude | 15.91 (0.005) | 15.91 (0.005) | |||
| g magnitude | 16.15 (0.004) | 16.15 (0.004) | |||
| r magnitude | 16.66 (0.004) | 16.66 (0.004) | |||
| i magnitude | 17.02 (0.005) | 17.02 (0.005) | |||
| z magnitude | 17.34 (0.01) | 17.34 (0.01) | |||
| G magnitude | 16.42 (0.003) | 16.45 (0.002) | 16.42 (0.003) | ||
| BP magnitude | 16.28 (0.005) | 16.22 (0.008) | |||
| RP magnitude | 16.72 (0.007) | 16.70 (0.007) | |||
| Pan g magnitude | 16.25 (0.003) | ||||
| Pan r magnitude | 16.68 (0.004) | ||||
| Pan i magnitude | 17.04 (0.004) | ||||
| Pan z magnitude | 17.31 (0.005) | ||||
| Pan y magnitude | 17.52 (0.008) | ||||
| E(B-V) | 0.030 | ||||
* 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.