All names: Gaia DR3 4425487989169416320, PG1559+048, Gaia DR2 4425487989169416320, PG 1559+048, Gaia EDR3 4425487989169416320, TIC 462182327, UCAC4 474-055216, WISE J160131.26+044027.1, 2MASS J16013127+0440270, SDSS J160131.27+044027.0, GALEX J160131.2+044028, UCAC2 33411440, LAMOST J160131.27+044027.0, WISEA J160131.25+044026.9, GALEX J160131.3+044027
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 16 01 31.26 (0.03) | 16 01 31.32 | 16 01 31.27 (0.03) | ||
| Declination | 04 40 27.05 (0.04) | 04 40 27.09 | 04 40 27.07 (0.04) | ||
| Spectral type | He-sdOB | sdBC0.2VIIHe22 | |||
| Effective temperature | [K] | 38100.0 (360) | |||
| log(g) | [cgs] | 5.74 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.39 (0.04) | 1.29 (0.06) | 1.39 (0.04) | |
| Distance | [pc] | 716.90 (22) | 772.74 (33) | 716.90 (22) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -13.28 (0.04) | -13.315 (0.08) | -13.28 (0.04) | |
| Proper motion (declination) | [mas/yr] | -0.993 (0.04) | -1.055 (0.07) | -0.993 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.27 (0.02) | ||||
| V magnitude | 14.46 (0.03) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.96 (0.04) | 14.96 (0.04) | |||
| H magnitude | 15.09 (0.07) | 15.09 (0.07) | |||
| K magnitude | 15.22 (0.2) | 15.22 (0.1) | |||
| u magnitude | 13.91 (0.004) | 13.91 (0.004) | |||
| g magnitude | 14.57 (0.002) | ||||
| r magnitude | 14.65 (0.005) | 14.65 (0.005) | |||
| i magnitude | 15.29 (0.001) | 15.29 (0.001) | |||
| z magnitude | 15.27 (0.006) | 15.27 (0.006) | |||
| G magnitude | 14.46 (0.003) | 14.48 (0.0008) | 14.46 (0.003) | ||
| BP magnitude | 14.33 (0.004) | 14.27 (0.008) | |||
| RP magnitude | 14.70 (0.004) | 14.70 (0.003) | |||
| Pan g magnitude | 14.27 (0.002) | ||||
| Pan r magnitude | 14.67 (0.007) | ||||
| Pan i magnitude | 15.04 (0.004) | ||||
| Pan z magnitude | 15.23 (0.004) | ||||
| Pan y magnitude | 15.43 (0.008) | ||||
| E(B-V) | 0.052 | ||||
* 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.