All names: WDS J15528+4731A, SDSS J155245.19+473129.5, Gaia DR2 1398291165161649280, Gaia DR3 1398291165161649280, GALEX J155244.9+473128, ** SLN 32A
| Parameter | Unit | Stilism | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|
| Right ascension | 15 52 45.19 | 15 52 45.20 (0.1) | ||
| Declination | 47 31 29.30 | 47 31 29.53 (0.2) | ||
| Spectral type | DA | DA | ||
| Effective temperature | [K] | 20087.0 (1657) | ||
| log(g) | [cgs] | 8.09 (0.1) | ||
| Mass | [M☉] | 0.674 (0.08) | ||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 2.63 | 2.63 (0.2) | |
| Distance | [pc] | 380.23 | 380.23 (25) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.07 (0.2) | ||
| Proper motion (declination) | [mas/yr] | -14.135 (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 | 18.79 (0.02) | |||
| g magnitude | 18.71 (0.02) | |||
| r magnitude | 19.05 (0.02) | |||
| i magnitude | 19.36 (0.03) | |||
| z magnitude | 19.69 (0.07) | |||
| G magnitude | 18.88 | 18.88 (0.004) | ||
| BP magnitude | ||||
| RP magnitude | ||||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.019 | |||
* 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.