All names: UCAC4 549-053982, Gaia DR3 1261013053920006784, UCAC2 38803731, WISEA J145952.89+193744.3, LAMOST J145952.97+193745.4, SDSS J145952.91+193744.1, 2MASS J14595292+1937441, GALEX J145952.9+193746, Gaia DR2 1261013053920006784, PG 1457+198, TIC 351298579, PG1457+198, WISE J145952.90+193744.2
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 59 52.96 | 14 59 52.92 (0.03) | ||
| Declination | 19 37 44.91 | 19 37 44.24 (0.04) | ||
| Spectral type | sdOB | sdBO | ||
| 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] | 0.42 (0.07) | 0.46 (0.05) | |
| Distance | [pc] | 2405.58 (409) | 2154.24 (217) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -14.448 (0.1) | -14.235 (0.05) | |
| Proper motion (declination) | [mas/yr] | -10.96 (0.1) | -11.072 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.56 (0.08) | |||
| V magnitude | 15.55 (0.01) | |||
| R magnitude | 16.14 (0.2) | |||
| I magnitude | ||||
| J magnitude | 16.42 (0.1) | 16.42 (0.1) | ||
| H magnitude | 16.42 (0.2) | 16.42 (0.2) | ||
| K magnitude | 16.64 | |||
| u magnitude | 15.14 (0.004) | |||
| g magnitude | 15.40 (0.003) | 15.37 (0.01) | ||
| r magnitude | 15.86 (0.004) | 15.80 (0.01) | ||
| i magnitude | 16.21 (0.004) | |||
| z magnitude | 16.50 (0.008) | |||
| G magnitude | 15.64 (0.002) | 15.62 (0.003) | ||
| BP magnitude | 15.46 (0.01) | |||
| RP magnitude | 15.88 (0.008) | |||
| Pan g magnitude | 15.44 (0.003) | |||
| Pan r magnitude | 15.86 (0.003) | |||
| Pan i magnitude | 16.22 (0.004) | |||
| Pan z magnitude | 16.46 (0.003) | |||
| Pan y magnitude | 16.64 (0.007) | |||
| E(B-V) | 0.036 | |||
* 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.