All names: TIC 345562239, LAMOST J145439.81+193700.8, Gaia DR2 1237226700401153792, [TFW97] J145439.81+193700.88, PG 1452+198, GSC 01481-00036, Gaia DR3 1237226700401153792, SBC9 3336, TYC 1481-36-1, 2MASS J14543981+1937008, PG1452+198, Gaia EDR3 1237226700401153792
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 14 54 39.81 (0.04) | 14 54 39.80 | 14 54 39.82 (0.04) | ||
| Declination | 19 37 00.55 (0.04) | 19 37 00.90 | 19 37 00.86 (0.04) | ||
| Spectral type | sdB+WD | sdB0.5VIIIHe7 | |||
| Effective temperature | [K] | 29400.0 | |||
| log(g) | [cgs] | 5.75 | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 2.95 (0.05) | 3.15 (0.07) | 2.95 (0.05) | |
| Distance | [pc] | 338.83 (5) | 317.54 (7) | 338.83 (5) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.53 (0.05) | -0.693 (0.1) | -0.53 (0.05) | |
| Proper motion (declination) | [mas/yr] | -18.981 (0.05) | -18.926 (0.1) | -18.981 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.30 (0.1) | ||||
| V magnitude | 12.94 (0.3) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.05 (0.02) | 13.05 (0.02) | |||
| H magnitude | 13.18 (0.03) | 13.18 (0.03) | |||
| K magnitude | 13.28 (0.03) | 13.28 (0.03) | |||
| u magnitude | 12.95 (0.004) | ||||
| g magnitude | |||||
| r magnitude | 12.90 (0.002) | ||||
| i magnitude | 13.24 (0.003) | ||||
| z magnitude | 13.73 (0.005) | ||||
| G magnitude | 12.43 (0.003) | 12.45 (0.0008) | 12.43 (0.003) | ||
| BP magnitude | 12.30 (0.003) | 12.27 (0.01) | |||
| RP magnitude | 12.69 (0.004) | 12.70 (0.003) | |||
| Pan g magnitude | 12.70 | ||||
| Pan r magnitude | 13.02 | ||||
| Pan i magnitude | 13.26 | ||||
| Pan z magnitude | 13.31 (0.002) | ||||
| Pan y magnitude | 13.47 (0.003) | ||||
| 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.