All names: Gaia DR2 239729479439877120, Gaia DR3 239729479439877120, SDSS J031803.91+423033.7, SDSS J031803.90+423033.4
| Parameter | Unit | Stilism | Simbad |
|---|---|---|---|
| Right ascension | 03 18 03.93 (0.1) | ||
| Declination | 42 30 33.72 (0.1) | ||
| Spectral type | DA | ||
| 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] | 0.05 (0.1) | |
| Distance | [pc] | 18761.73 (47168) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -0.95 (0.1) | |
| Proper motion (declination) | [mas/yr] | -1.395 (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 | 21.95 (0.3) | ||
| g magnitude | 18.84 (0.01) | ||
| r magnitude | 18.20 (0.009) | ||
| i magnitude | 17.69 (0.008) | ||
| z magnitude | 18.59 (0.06) | ||
| G magnitude | 17.71 (0.003) | ||
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | 0.195 | ||
* 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.