All names: Gaia DR3 4411061675059759872, TIC 272818503, PG1551+015, 2MASS J15542519+0121095, Gaia DR2 4411061675059759872, PG 1551+015, LAMOST J155425.18+012109.6, UCAC2 32216056, GALEX J155425.1+012108, UCAC4 457-056356, FBS 1551+015
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 54 25.18 | 15 54 25.19 (0.03) | ||
| Declination | 01 21 09.86 | 01 21 09.60 (0.02) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.49 (0.05) | 0.39 (0.04) | |
| Distance | [pc] | 2040.40 (198) | 2586.65 (240) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.948 (0.1) | -2.97 (0.04) | |
| Proper motion (declination) | [mas/yr] | -2.937 (0.07) | -2.874 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.62 (0.04) | |||
| V magnitude | 15.49 (0.02) | |||
| R magnitude | 15.68 (0.2) | |||
| I magnitude | ||||
| J magnitude | 14.82 (0.04) | 14.82 (0.04) | ||
| H magnitude | 14.61 (0.04) | 14.61 (0.04) | ||
| K magnitude | 14.49 (0.09) | 14.49 (0.09) | ||
| u magnitude | 15.75 (0.005) | |||
| g magnitude | 15.42 (0.004) | |||
| r magnitude | 15.43 (0.005) | |||
| i magnitude | 15.46 (0.005) | |||
| z magnitude | 15.32 (0.006) | |||
| G magnitude | 15.36 (0.0004) | 15.34 (0.003) | ||
| BP magnitude | 15.43 (0.004) | |||
| RP magnitude | 15.13 (0.003) | |||
| Pan g magnitude | 15.44 (0.001) | |||
| Pan r magnitude | 15.44 (0.002) | |||
| Pan i magnitude | 15.48 (0.001) | |||
| Pan z magnitude | 15.52 (0.005) | |||
| Pan y magnitude | 15.54 (0.006) | |||
| E(B-V) | 0.077 | |||
* 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.