All names: GALEX J151128.1+300244, SDSS J151128.10+300245.0, Gaia DR2 1275457471318192768, Gaia DR3 1275457471318192768, Gaia EDR3 1275457471318192768, SDSS J151128.09+300245.02, SDSS J151128.09+300245.0
| Parameter | Unit | Gaia EDR3 | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 11 28.08 (0.2) | 15 11 28.09 | 15 11 28.08 (0.2) | 15 11 28.08 | 15 11 28.10 (0.2) | ||||
| Declination | 30 02 44.92 (0.2) | 30 02 45.04 | 30 02 44.93 (0.3) | 30 02 44.92 | 30 02 45.04 (0.2) | ||||
| Spectral type | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 8945.0 (76) | 9187.0 (395) | ||||||
| log(g) | [cgs] | 7.35 (0.1) | 7.98 (0.1) | ||||||
| Mass | [M☉] | 0.3339999999999999 (0.04) | 0.586 (0.1) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 3.50 (0.3) | 2.97 (0.5) | 3.50 | 3.50 (0.3) | ||||
| Distance | [pc] | 285.53 (28) | 337.19 (54) | 285.53 | 285.53 (28) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -20.96509907 (0.2) | -20.66238534 (0.5) | -20.965 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -7.235655701 (0.3) | -6.368587571 (0.7) | -7.236 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.31 (0.04) | 20.30 (0.04) | 20.32 (0.04) | ||||||
| g magnitude | 19.82 (0.01) | 19.84 (0.02) | 19.82 (0.01) | ||||||
| r magnitude | 19.85 (0.02) | 19.86 (0.02) | 19.85 (0.02) | ||||||
| i magnitude | 19.89 (0.02) | 19.91 (0.03) | 19.89 (0.02) | ||||||
| z magnitude | 19.99 (0.08) | 20.01 (0.07) | 19.99 (0.08) | ||||||
| G magnitude | 19.77 (0.03) | 19.82 | 19.77 | 19.77 (0.004) | |||||
| BP magnitude | 19.88 (0.03) | 19.81 | |||||||
| RP magnitude | 19.61 (0.04) | 19.67 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.030 | ||||||||
* 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.