All names: SDSS J154720.93+055937.75, Gaia DR2 4429513885353016192, LAMOST J154720.93+055937.7, SDSSJ154720.93+055937.8, GALEX J154720.9+055938, TIC 272570168, Gaia EDR3 4429513885353016192, SDSS J154720.93+055937.7, Gaia DR3 4429513885353016192, 2MASS J15472091+0559378
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 47 20.92 (0.04) | 15 47 20.93 | 15 47 20.93 | 15 47 20.92 (0.06) | 15 47 20.93 (0.04) | ||||
| Declination | 05 59 37.77 (0.03) | 05 59 37.77 | 05 59 37.80 | 05 59 37.77 (0.05) | 05 59 37.77 (0.03) | ||||
| Spectral type | sdB | sdB | sdB | ||||||
| Effective temperature | [K] | 28570.0 (1240) | 25238.0 (152) | ||||||
| log(g) | [cgs] | 5.46 (0.1) | 5.00 (0.05) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.20 (0.05) | 0.29 (0.08) | 0.29 (0.08) | 0.20 (0.05) | ||||
| Distance | [pc] | 5035.07 (1217) | 3394.43 (902) | 3394.73 (903) | 5035.25 (1217) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -9.3417816 (0.05) | -9.369 (0.1) | -9.368684922 (0.1) | -9.342 (0.05) | ||||
| Proper motion (declination) | [mas/yr] | -0.53653836 (0.05) | -0.655 (0.1) | -0.654833631 (0.1) | -0.537 (0.05) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | 16.36 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.63 (0.1) | 16.56 (0.01) | |||||||
| H magnitude | 16.38 | 16.62 (0.02) | |||||||
| K magnitude | 14.97 | 16.71 (0.04) | |||||||
| u magnitude | 16.32 (0.006) | 16.32 (0.006) | 16.34 (0.02) | 16.32 (0.006) | |||||
| g magnitude | 16.10 (0.004) | 16.10 (0.004) | 16.13 (0.02) | 16.10 (0.004) | |||||
| r magnitude | 16.45 (0.005) | 16.45 (0.005) | 16.45 (0.01) | 16.45 (0.005) | |||||
| i magnitude | 16.72 (0.006) | 16.72 (0.006) | 16.71 (0.01) | 16.72 (0.006) | |||||
| z magnitude | 16.95 (0.01) | 16.95 (0.01) | 16.97 (0.02) | 16.95 (0.01) | |||||
| G magnitude | 16.29 (0.003) | 16.31 (0.001) | 16.31 | 16.29 (0.003) | |||||
| BP magnitude | 16.23 (0.003) | 16.21 (0.006) | 16.21 | ||||||
| RP magnitude | 16.42 (0.005) | 16.41 (0.005) | 16.41 | ||||||
| Pan g magnitude | 16.17 (0.004) | 16.17 (0.004) | |||||||
| Pan r magnitude | 16.47 (0.002) | 16.47 (0.002) | |||||||
| Pan i magnitude | 16.74 (0.002) | 16.74 (0.002) | |||||||
| Pan z magnitude | 16.95 (0.004) | 16.95 (0.004) | |||||||
| Pan y magnitude | 17.08 (0.006) | 17.08 (0.006) | |||||||
| E(B-V) | 0.038 | ||||||||
* 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.