All names: Gaia DR3 4427251670241736960, SDSS J153508.51+032456.3, SDSSJ153508.51+032456.3, GALEX J153508.5+032456, Gaia DR2 4427251670241736960, Gaia EDR3 4427251670241736960
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 35 08.51 (0.2) | 15 35 08.51 | 15 35 08.51 | 15 35 08.51 (0.3) | 15 35 08.51 (0.2) | 15 35 08.51 | |||
| Declination | 03 24 56.36 (0.2) | 03 24 56.35 | 03 24 56.34 | 03 24 56.36 (0.2) | 03 24 56.36 (0.2) | 03 24 56.35 | |||
| Spectral type | sdB | sdB | SDB | ||||||
| Effective temperature | [K] | 21548.0 (507) | |||||||
| log(g) | [cgs] | 5.00 (0.003) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.04 (0.3) | -0.19 (0.3) | -0.19 (0.3) | 0.04 (0.3) | ||||
| Distance | [pc] | 26310.97 (192788) | 26315.79 (192867) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -0.815772532 (0.3) | -0.883 (0.6) | -0.882802314 (0.6) | -0.816 (0.3) | -2.2 | |||
| Proper motion (declination) | [mas/yr] | -0.03883005 (0.3) | -0.222 (0.5) | -0.22217016 (0.5) | -0.039 (0.3) | 2.0 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 19.42 (0.03) | 19.42 (0.03) | 19.41 (0.03) | 19.41 (0.03) | |||||
| g magnitude | 18.92 (0.01) | 18.92 (0.01) | 18.92 (0.01) | 18.92 (0.02) | |||||
| r magnitude | 19.26 (0.01) | 19.26 (0.01) | 19.26 (0.01) | 19.28 (0.02) | |||||
| i magnitude | 19.51 (0.02) | 19.51 (0.02) | 19.51 (0.02) | 19.52 (0.03) | |||||
| z magnitude | 19.70 (0.1) | 19.70 (0.1) | 19.70 (0.1) | 19.72 (0.1) | |||||
| G magnitude | 19.10 (0.03) | 19.14 (0.003) | 19.14 | 19.10 (0.004) | |||||
| BP magnitude | 19.09 (0.03) | 19.14 (0.02) | 19.14 | ||||||
| RP magnitude | 19.21 (0.04) | 19.17 (0.03) | 19.17 | ||||||
| Pan g magnitude | 18.97 (0.007) | 18.97 (0.007) | |||||||
| Pan r magnitude | 19.25 (0.008) | 19.25 (0.008) | |||||||
| Pan i magnitude | 19.50 (0.01) | 19.50 (0.01) | |||||||
| Pan z magnitude | 19.67 (0.01) | 19.67 (0.01) | |||||||
| Pan y magnitude | 19.76 (0.08) | 19.76 (0.08) | |||||||
| E(B-V) | 0.039 | ||||||||
* 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.