All names: SDSS J152000.80+071348.7, Gaia DR2 1163254581741562240, GALEX J152000.8+071349, Gaia DR3 1163254581741562240, SDSSJ152000.80+071348.7, 2MASS J15200080+0713488, TIC 366548611
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 20 00.81 | 15 20 00.81 (0.05) | ||
| Declination | 07 13 48.76 | 07 13 48.78 (0.05) | ||
| Spectral type | sdB+MS | sdB0.2/0.5He11+G/K | ||
| 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] | 0.63 (0.09) | 0.42 (0.06) | |
| Distance | [pc] | 1578.53 (234) | 2353.49 (318) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.624 (0.1) | -2.662 (0.06) | |
| Proper motion (declination) | [mas/yr] | -6.422 (0.1) | -6.324 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.94 (0.08) | 15.94 (0.08) | ||
| H magnitude | 15.70 (0.1) | 15.70 (0.1) | ||
| K magnitude | 15.36 | |||
| u magnitude | 16.02 (0.006) | 16.02 (0.006) | ||
| g magnitude | 16.12 (0.004) | 16.12 (0.004) | ||
| r magnitude | 16.36 (0.005) | 16.36 (0.005) | ||
| i magnitude | 16.48 (0.006) | 16.49 (0.006) | ||
| z magnitude | 16.61 (0.01) | 16.62 (0.01) | ||
| G magnitude | 16.22 (0.003) | 16.20 (0.003) | ||
| BP magnitude | 16.15 (0.02) | |||
| RP magnitude | 16.14 (0.01) | |||
| Pan g magnitude | 16.17 (0.003) | |||
| Pan r magnitude | 16.37 (0.002) | |||
| Pan i magnitude | 16.50 (0.003) | |||
| Pan z magnitude | 16.59 (0.003) | |||
| Pan y magnitude | 16.63 (0.007) | |||
| E(B-V) | 0.029 | |||
* 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.