All names: Gaia DR3 1189114339315021184, SDSS J154638.25+103012.4, 2MASS J15463825+1030124, Gaia DR2 1189114339315021184, TIC 296738758, GALEX J154638.3+103013, PG 1544+107, PG1544+107
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 46 38.25 | 15 46 38.26 (0.03) | ||
| Declination | 10 30 13.47 | 10 30 12.47 (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] | 0.43 (0.06) | 0.55 (0.03) | |
| Distance | [pc] | 2319.65 (311) | 1821.83 (112) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.847 (0.09) | 3.769 (0.03) | |
| Proper motion (declination) | [mas/yr] | -18.088 (0.09) | -17.973 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.41 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.77 (0.03) | 14.74 (0.003) | ||
| H magnitude | 14.86 (0.06) | 14.82 (0.005) | ||
| K magnitude | 15.00 (0.1) | 14.90 (0.008) | ||
| u magnitude | 14.35 (0.004) | 14.36 (0.01) | ||
| g magnitude | 14.16 (0.003) | 14.19 (0.02) | ||
| r magnitude | 14.57 (0.004) | 14.56 (0.01) | ||
| i magnitude | 14.85 (0.004) | 14.85 (0.01) | ||
| z magnitude | 15.14 (0.005) | 15.15 (0.01) | ||
| G magnitude | 14.40 (0.0005) | 14.38 (0.003) | ||
| BP magnitude | 14.28 (0.008) | |||
| RP magnitude | 14.53 (0.004) | |||
| Pan g magnitude | 14.26 (0.002) | |||
| Pan r magnitude | 14.59 (0.002) | |||
| Pan i magnitude | 14.89 (0.001) | |||
| Pan z magnitude | 15.10 (0.002) | |||
| Pan y magnitude | 15.24 (0.004) | |||
| E(B-V) | 0.033 | |||
* 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.