All names: GALEX J155144.8+002947, LAMOST J155144.87+002948.8, PG 1549+006, Gaia DR3 4410613624072340736, ULAS J155144.86+002948.7, 2MASS J15514487+0029489, PG1549+006, Gaia DR2 4410613624072340736, Gaia EDR3 4410613624072340736, DENIS J155144.9+002949, TIC 272704223, UCAC2 31879446, SDSS J155144.87+002948.8, UCAC4 453-059927, LAMOST J155144.88+002949.1
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 51 44.86 (0.03) | 15 51 44.94 | 15 51 44.88 (0.03) | ||
| Declination | 00 29 48.70 (0.03) | 00 29 49.49 | 00 29 48.87 (0.03) | ||
| Spectral type | sdB | sdB0.2VIeHe7 | |||
| Effective temperature | [K] | 33610.0 (1660) | |||
| log(g) | [cgs] | 5.66 (0.3) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.74 (0.04) | 0.63 (0.06) | 0.74 (0.04) | |
| Distance | [pc] | 1350.07 (70) | 1597.95 (144) | 1350.07 (70) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -12.464 (0.04) | -12.393 (0.1) | -12.464 (0.04) | |
| Proper motion (declination) | [mas/yr] | -11.052 (0.04) | -11.053 (0.09) | -11.052 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.07 (0.01) | ||||
| V magnitude | 15.21 (0.02) | ||||
| R magnitude | 15.65 (0.06) | ||||
| I magnitude | 15.52 (0.04) | ||||
| J magnitude | 15.57 (0.08) | 15.60 (0.007) | |||
| H magnitude | 15.67 (0.1) | 15.53 (0.007) | |||
| K magnitude | 15.53 | 15.58 (0.02) | |||
| u magnitude | 14.73 (0.004) | 14.73 (0.004) | |||
| g magnitude | 14.97 (0.003) | 14.97 (0.003) | |||
| r magnitude | 15.41 (0.003) | 15.41 (0.003) | |||
| i magnitude | 15.72 (0.004) | 15.72 (0.004) | |||
| z magnitude | 15.98 (0.006) | 15.98 (0.006) | |||
| G magnitude | 15.20 (0.003) | 15.21 (0.001) | 15.20 (0.003) | ||
| BP magnitude | 15.08 (0.004) | 15.00 (0.01) | |||
| RP magnitude | 15.41 (0.005) | 15.40 (0.004) | |||
| Pan g magnitude | 15.08 (0.002) | ||||
| Pan r magnitude | 15.45 (0.003) | ||||
| Pan i magnitude | 15.73 (0.003) | ||||
| Pan z magnitude | 15.97 (0.004) | ||||
| Pan y magnitude | 16.12 (0.005) | ||||
| E(B-V) | 0.086 | ||||
* 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.