All names: Gaia DR2 1639999937328089088, PG1547+632, TIC 198537188, 2MASS J15481174+6303082, Gaia DR3 1639999937328089088, SDSS J154811.73+630308.0, HS 1547+6312, FBS 1547+632, FBS B 734, PG 1547+632, Gaia EDR3 1639999937328089088
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 48 11.72 (0.03) | 15 48 11.84 | 15 48 11.75 (0.03) | ||
| Declination | 63 03 08.15 (0.03) | 63 03 07.66 | 63 03 08.03 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 31300.0 (800) | |||
| log(g) | [cgs] | 5.75 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.85 (0.03) | 0.85 (0.04) | 0.85 (0.03) | |
| Distance | [pc] | 1175.92 (39) | 1171.10 (48) | 1175.92 (39) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -12.516 (0.04) | -12.406 (0.07) | -12.516 (0.04) | |
| Proper motion (declination) | [mas/yr] | 7.632 (0.04) | 7.534 (0.07) | 7.632 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.10 | ||||
| V magnitude | 15.10 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.56 (0.06) | 15.56 (0.06) | |||
| H magnitude | 15.40 (0.1) | 15.40 (0.1) | |||
| K magnitude | 15.07 (0.2) | 15.07 (0.2) | |||
| u magnitude | 14.49 (0.004) | 14.47 (0.02) | |||
| g magnitude | 14.66 (0.003) | 14.69 (0.02) | |||
| r magnitude | 15.15 (0.004) | 15.17 (0.01) | |||
| i magnitude | 15.50 (0.004) | 15.50 (0.01) | |||
| z magnitude | 15.82 (0.007) | 15.82 (0.01) | |||
| G magnitude | 14.91 (0.003) | 14.93 (0.0006) | 14.91 (0.003) | ||
| BP magnitude | 14.77 (0.003) | 14.72 (0.004) | |||
| RP magnitude | 15.18 (0.004) | 15.18 (0.002) | |||
| Pan g magnitude | 14.74 (0.008) | ||||
| Pan r magnitude | 15.16 (0.005) | ||||
| Pan i magnitude | 15.51 (0.003) | ||||
| Pan z magnitude | 15.77 (0.008) | ||||
| Pan y magnitude | 15.98 (0.009) | ||||
| E(B-V) | 0.020 | ||||
* 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.