All names: GALEX J132850.8+282918, Gaia DR3 1449916912577361408, Gaia DR2 1449916912577361408, SDSS J132850.85+282917.5, SDSSJ132850.85+282917.5
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 13 28 50.85 | 13 28 50.85 (0.2) | |
| Declination | 28 29 17.50 | 28 29 17.47 (0.1) | |
| Spectral type | sdO | sdO | |
| 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] | -0.13 (0.3) | |
| Distance | [pc] | ||
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -4.276 (0.8) | -3.342 (0.3) |
| Proper motion (declination) | [mas/yr] | -2.303 (0.5) | -2.204 (0.2) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 18.22 (0.01) | 18.22 (0.01) | |
| g magnitude | 18.61 (0.008) | 18.61 (0.008) | |
| r magnitude | 19.07 (0.01) | 19.07 (0.01) | |
| i magnitude | 19.41 (0.02) | 19.41 (0.02) | |
| z magnitude | 19.67 (0.09) | 19.67 (0.09) | |
| G magnitude | 18.85 (0.003) | 18.81 (0.003) | |
| BP magnitude | 18.62 (0.03) | ||
| RP magnitude | 19.08 (0.05) | ||
| Pan g magnitude | 18.63 (0.006) | ||
| Pan r magnitude | 19.06 (0.01) | ||
| Pan i magnitude | 19.42 (0.009) | ||
| Pan z magnitude | 19.64 (0.02) | ||
| Pan y magnitude | 19.70 (0.08) | ||
| E(B-V) | |||
* 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.