All names: USNO-B1.0 1387-00277759, SDSS J175558.35+484348.8, ** SLN 38B, Gaia DR3 1363354080110509696, WDS J17560+4844B, Gaia DR2 1363354080110509696
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 17 55 58.35 | 17 55 58.35 (0.07) | |
| Declination | 48 43 49.01 | 48 43 48.82 (0.08) | |
| Spectral type | DA | DA | |
| Effective temperature | [K] | 16766.0 (648) | |
| log(g) | [cgs] | 8.17 (0.04) | |
| Mass | [M☉] | 0.718 (0.03) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 5.24 | 5.24 (0.08) |
| Distance | [pc] | 190.67 | 190.67 (3) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -0.734 (0.1) | |
| Proper motion (declination) | [mas/yr] | 11.69 (0.1) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 17.30 | ||
| V magnitude | |||
| R magnitude | 17.40 | ||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 18.02 (0.02) | ||
| g magnitude | 17.69 (0.02) | ||
| r magnitude | 17.91 (0.02) | ||
| i magnitude | 18.18 (0.02) | ||
| z magnitude | 18.41 (0.04) | ||
| G magnitude | 17.80 | 17.80 (0.003) | |
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.