All names: Gaia DR2 4881368771587323136, EC 04506-2652, TIC 686220901, GALEX J045242.6-264734, TIC 471015330, Gaia DR3 4881368771587323136, EC04506-2652
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 52 42.63 | 04 52 42.69 (0.04) | ||
| Declination | -26 47 33.61 | -26 47 33.82 (0.04) | ||
| Spectral type | He-sdO | sdOHe | ||
| 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] | 0.17 (0.08) | 0.12 (0.05) | |
| Distance | [pc] | 5977.29 (2701) | 8149.96 (3647) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 1.678 (0.1) | 1.691 (0.05) | |
| Proper motion (declination) | [mas/yr] | 1.352 (0.2) | 1.081 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.36 | |||
| V magnitude | 16.73 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.63 (0.002) | 16.59 (0.003) | ||
| BP magnitude | 16.35 (0.008) | |||
| RP magnitude | 16.89 (0.008) | |||
| Pan g magnitude | 16.44 (0.0007) | |||
| Pan r magnitude | 16.87 (0.003) | |||
| Pan i magnitude | 17.24 (0.004) | |||
| Pan z magnitude | 17.50 (0.01) | |||
| Pan y magnitude | 17.69 (0.01) | |||
| E(B-V) | 0.012 | |||
* 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.