All names: Gaia EDR3 817590730381121920, SDSS J092836.47+432257.0, GALEX J092836.5+432256, Gaia DR2 817590730381121920, Gaia DR3 817590730381121920, SDSS J092836.48+432257.0
| Parameter | Unit | Gaia EDR3 | Stilism | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|
| Right ascension | 09 28 36.51 (0.2) | 09 28 36.51 | 09 28 36.47 (0.2) | |||
| Declination | 43 22 56.49 (0.2) | 43 22 56.49 | 43 22 57.23 (0.2) | |||
| Spectral type | DA | DA | DC: | |||
| Effective temperature | [K] | 7479.0 (270) | ||||
| log(g) | [cgs] | 8.38 (0.07) | ||||
| Mass | [M☉] | 0.838 (0.06) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 7.74 (0.3) | 7.74 | 7.74 (0.3) | ||
| Distance | [pc] | 129.24 (5) | 129.24 | 129.24 (5) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 29.487 (0.2) | 29.487 (0.2) | |||
| Proper motion (declination) | [mas/yr] | -46.099 (0.2) | -46.099 (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 | 20.03 (0.04) | |||||
| g magnitude | 19.49 (0.01) | |||||
| r magnitude | 19.32 (0.01) | |||||
| i magnitude | 19.32 (0.01) | |||||
| z magnitude | 19.37 (0.05) | |||||
| G magnitude | 19.32 (0.004) | 19.32 | 19.32 (0.004) | |||
| BP magnitude | 19.53 (0.03) | |||||
| RP magnitude | 19.06 (0.04) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.006 | |||||
* 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.