All names: GALEX J093758.7+343837, SDSS J093758.71+343837.3, Gaia DR2 797770865059529472, Gaia DR3 797770865059529472, Gaia EDR3 797770865059529472, SDSS J093758.72+343837.2, SDSS J093758.72+343837.3
| Parameter | Unit | Gaia EDR3 | Stilism | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|
| Right ascension | 09 37 58.72 (0.2) | 09 37 58.72 | 09 37 58.72 (0.2) | |||
| Declination | 34 38 37.38 (0.1) | 34 38 37.38 | 34 38 37.32 (0.1) | |||
| Spectral type | DA | DA | DA | |||
| Effective temperature | [K] | 17487.0 (1066) | ||||
| log(g) | [cgs] | 8.01 (0.08) | ||||
| Mass | [M☉] | 0.625 (0.07) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 3.15 (0.2) | 3.15 | 3.15 (0.2) | ||
| Distance | [pc] | 317.04 (19) | 317.04 | 317.04 (19) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -0.271 (0.2) | -0.271 (0.2) | |||
| Proper motion (declination) | [mas/yr] | 4.084 (0.1) | 4.084 (0.1) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 18.50 (0.01) | |||||
| g magnitude | 18.39 (0.007) | |||||
| r magnitude | 18.72 (0.01) | |||||
| i magnitude | 19.02 (0.01) | |||||
| z magnitude | 19.27 (0.07) | |||||
| G magnitude | 18.57 (0.003) | 18.57 | 18.57 (0.003) | |||
| BP magnitude | 18.50 (0.02) | |||||
| RP magnitude | 18.76 (0.04) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.016 | |||||
* 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.