All names: SDSS J155119.56+064904.3, SDSS J155119.56+064904.2, Gaia DR3 4429969186249166336, 2MASS J15511956+0649042, Gaia DR2 4429969186249166336, TIC 446191365, SDSSJ155119.56+064904.3, GALEX J155119.5+064903
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 15 51 19.56 | 15 51 19.56 (6) | |
| Declination | 06 49 04.30 | 06 49 04.39 (8) | |
| Spectral type | sdOB+MS | sdB | |
| 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] | ||
| Distance | [pc] | ||
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | ||
| Proper motion (declination) | [mas/yr] | ||
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 15.26 (0.04) | 15.26 (0.04) | |
| H magnitude | 14.98 (0.07) | 14.98 (0.07) | |
| K magnitude | 14.90 (0.1) | 14.90 (0.1) | |
| u magnitude | 15.97 (0.005) | 15.99 (0.005) | |
| g magnitude | 15.88 (0.004) | 15.89 (0.004) | |
| r magnitude | 15.94 (0.004) | 15.94 (0.004) | |
| i magnitude | 15.96 (0.005) | 15.95 (0.004) | |
| z magnitude | 16.00 (0.007) | 15.99 (0.007) | |
| G magnitude | 16.04 (0.007) | 16.42 (0.007) | |
| BP magnitude | 15.90 (0.007) | ||
| RP magnitude | 15.62 (0.002) | ||
| Pan g magnitude | 15.94 (0.004) | ||
| Pan r magnitude | 15.96 (0.006) | ||
| Pan i magnitude | 15.99 (0.003) | ||
| Pan z magnitude | 16.04 (0.003) | ||
| Pan y magnitude | 16.05 (0.004) | ||
| 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.