All names: TIC 272618143, UCAC4 472-052928, SDSS J154837.17+042126.9, PG 1546+045, Gaia EDR3 4426202946603971968, LAMOST J154837.17+042126.9, PG1546+045, Gaia DR2 4426202946603971968, Gaia DR3 4426202946603971968, 2MASS J15483717+0421268
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 48 37.17 (0.04) | 15 48 37.21 | 15 48 37.18 (0.04) | ||
| Declination | 04 21 26.90 (0.03) | 04 21 27.11 | 04 21 26.94 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 32210.0 (1150) | |||
| log(g) | [cgs] | 5.71 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.83 (0.04) | 0.95 (0.06) | 0.83 (0.04) | |
| Distance | [pc] | 1197.75 (62) | 1050.42 (67) | 1197.75 (62) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -9.949 (0.05) | -10.231 (0.1) | -9.949 (0.05) | |
| Proper motion (declination) | [mas/yr] | -2.179 (0.04) | -1.999 (0.09) | -2.179 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.42 (0.03) | ||||
| V magnitude | 15.55 (0.02) | ||||
| R magnitude | 15.47 (0.3) | ||||
| I magnitude | |||||
| J magnitude | 15.87 (0.07) | 15.87 (0.07) | |||
| H magnitude | 15.88 (0.1) | 15.88 (0.1) | |||
| K magnitude | 17.17 | ||||
| u magnitude | 15.18 (0.004) | 15.18 (0.004) | |||
| g magnitude | 15.30 (0.003) | 15.30 (0.003) | |||
| r magnitude | 15.68 (0.003) | 15.68 (0.003) | |||
| i magnitude | 15.95 (0.004) | 15.95 (0.004) | |||
| z magnitude | 16.17 (0.008) | 16.17 (0.008) | |||
| G magnitude | 15.49 (0.003) | 15.51 (0.0007) | 15.49 (0.003) | ||
| BP magnitude | 15.40 (0.004) | 15.35 (0.009) | |||
| RP magnitude | 15.65 (0.005) | 15.65 (0.003) | |||
| Pan g magnitude | 15.36 (0.004) | ||||
| Pan r magnitude | 15.70 (0.004) | ||||
| Pan i magnitude | 15.98 (0.003) | ||||
| Pan z magnitude | 16.22 (0.002) | ||||
| Pan y magnitude | 16.36 (0.008) | ||||
| E(B-V) | 0.045 | ||||
* 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.