All names: TIC 161820334, Gaia DR2 1622933901956297856, SBSS 1554+582, SDSS J155517.48+580637.7, 2MASS J15551745+5806375, Gaia DR3 1622933901956297856
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 15 55 17.47 | 15 55 17.49 (0.06) | |
| Declination | 58 06 37.25 | 58 06 37.82 (0.06) | |
| Spectral type | DA | sd | |
| Effective temperature | [K] | 25098.0 (592) | |
| log(g) | [cgs] | 6.76 (0.04) | |
| Mass | [M☉] | 0.249 (0.01) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 2.01 | 2.01 (0.06) |
| Distance | [pc] | 498.68 | 498.68 (15) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -8.767 (0.07) | |
| Proper motion (declination) | [mas/yr] | -35.609 (0.08) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 16.52 (0.1) | ||
| H magnitude | 16.43 (0.3) | ||
| K magnitude | |||
| u magnitude | 16.39 (0.02) | ||
| g magnitude | 16.68 (0.01) | ||
| r magnitude | 17.08 (0.01) | ||
| i magnitude | 17.27 (0.01) | ||
| z magnitude | 17.36 (0.03) | ||
| G magnitude | 16.89 | 16.89 (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.