All names: WD 1530+315, SDSS J153243.44+312057.1, SDSS J153243.34+312057.2, Gaia DR2 1274285808534530432, Gaia EDR3 1274285808534530432, Gaia DR3 1274285808534530432, SDSS J153243.35+312057.3
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 15 32 43.35 (0.3) | 15 32 43.35 (0.4) | 15 32 43.35 (0.3) | 15 32 43.20 | ||
| Declination | 31 20 57.16 (0.4) | 31 20 57.17 (0.6) | 31 20 57.28 (0.4) | 31 20 56.04 | ||
| Spectral type | DB | DB: dM | ||||
| 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] | 0.40 (0.5) | 0.45 (0.7) | 0.40 (0.5) | ||
| Distance | [pc] | 2510.37 (3339) | 2245.17 (3420) | 2510.67 (3340) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -0.373745191 (0.4) | -1.809 (0.9) | -0.374 (0.4) | ||
| Proper motion (declination) | [mas/yr] | -7.004653663 (0.7) | -8.506 (1) | -7.005 (0.7) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 25.60 (0.8) | 25.37 | ||||
| g magnitude | 22.64 (0.1) | 22.60 | ||||
| r magnitude | 20.61 (0.03) | 20.59 | ||||
| i magnitude | 19.52 (0.02) | 19.51 | ||||
| z magnitude | 18.83 (0.04) | 18.82 | ||||
| G magnitude | 20.21 (0.1) | 20.28 | 20.21 (0.005) | |||
| BP magnitude | 20.67 (0.1) | 19.70 | ||||
| RP magnitude | 19.07 (0.04) | 18.89 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.027 | |||||
* 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.