All names: WD 1547+572, USNO-B1.0 1471-00299000, SDSS J154835.89+570826.4, SDSS J154835.88+570826.4, 2MASS J15483592+5708259, LP 99-578, LSPM J1548+5708, NLTT 41287
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 15 48 35.89 (0.08) | |
| Declination | 57 08 26.43 (0.07) | |
| Spectral type | DC | |
| 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] | 26.37 (0.08) |
| Distance | [pc] | 37.93 (0.1) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -216.281 (0.2) |
| Proper motion (declination) | [mas/yr] | -138.538 (0.2) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 17.40 | |
| V magnitude | ||
| R magnitude | 17.10 | |
| I magnitude | ||
| J magnitude | 16.45 (0.1) | |
| H magnitude | 16.24 (0.2) | |
| K magnitude | ||
| u magnitude | 18.57 (0.02) | |
| g magnitude | 17.74 (0.005) | |
| r magnitude | 17.35 (0.005) | |
| i magnitude | 17.19 (0.006) | |
| z magnitude | 17.14 (0.01) | |
| G magnitude | 17.36 (0.001) | |
| BP magnitude | ||
| RP magnitude | ||
| Pan g magnitude | ||
| Pan r magnitude | ||
| Pan i magnitude | ||
| Pan z magnitude | ||
| Pan y magnitude |
* 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 (LANL). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.