All names: Gaia DR2 1401621384019650560, 2MASS J15461169+4838373, WISE J154611.66+483837.6, SDSS J154611.69+483837.3, PG1544+488, [TFW97] J154611.72+483837.11, PG 1544+488, LAMOST J154611.68+483837.2, TIC 159841364, UCAC4 694-055230, GALEX J154612.0+483837, Gaia EDR3 1401621384019650560, Gaia DR3 1401621384019650560, SDSS J154611.68+483837.3, WISEA J154611.65+483837.6
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 46 11.62 (0.03) | 15 46 11.89 | 15 46 11.69 (0.03) | ||
| Declination | 48 38 37.72 (0.03) | 48 38 35.88 | 48 38 37.23 (0.03) | ||
| Spectral type | He-sdB+He-sdB | sdBC1VIIpHe39 | |||
| Effective temperature | [K] | 40030.0 (1560) | |||
| log(g) | [cgs] | 6.41 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.99 (0.04) | 2.21 (0.04) | 1.99 (0.04) | |
| Distance | [pc] | 502.77 (9) | 451.61 (9) | 502.77 (9) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -44.066 (0.04) | -44.236 (0.07) | -44.066 (0.04) | |
| Proper motion (declination) | [mas/yr] | 30.928 (0.04) | 31.119 (0.1) | 30.928 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.52 (0.03) | ||||
| V magnitude | 12.79 (0.02) | ||||
| R magnitude | 13.08 (0.07) | ||||
| I magnitude | |||||
| J magnitude | 13.46 (0.02) | 13.46 (0.02) | |||
| H magnitude | 13.56 (0.03) | 13.56 (0.03) | |||
| K magnitude | 13.67 (0.05) | 13.67 (0.05) | |||
| u magnitude | 13.36 (0.009) | ||||
| g magnitude | 12.67 (0.001) | ||||
| r magnitude | 13.13 (0.002) | ||||
| i magnitude | 13.51 (0.002) | ||||
| z magnitude | 13.97 (0.007) | ||||
| G magnitude | 12.77 (0.003) | 12.79 (0.0009) | 12.77 (0.003) | ||
| BP magnitude | 12.62 (0.003) | 12.54 (0.008) | |||
| RP magnitude | 13.07 (0.004) | 13.06 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | 18.01 (0.03) | ||||
| Pan y magnitude | |||||
| E(B-V) | 0.019 | ||||
* 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.