All names: NLTT 43578, LP 386-47, LSPM J1647+2636E, SDSS J164744.71+263646.7, WD 1645+267, PM J16477+2636, 2MASS J16474461+2636452, SDSS J164744.70+263646.7, USNO-B1.0 1166-00275743
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 16 47 44.74 (0.04) | |
| Declination | 26 36 46.21 (0.06) | |
| Spectral type | DZ | |
| 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] | 19.79 (0.07) |
| Distance | [pc] | 50.54 (0.2) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -140.711 (0.1) |
| Proper motion (declination) | [mas/yr] | 143.92 (0.2) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 17.40 | |
| V magnitude | ||
| R magnitude | 17.00 | |
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | 14.33 (0.09) | |
| u magnitude | 17.52 (0.01) | |
| g magnitude | 17.00 (0.004) | |
| r magnitude | 16.91 (0.004) | |
| i magnitude | 16.96 (0.005) | |
| z magnitude | 17.07 (0.01) | |
| G magnitude | 16.92 (0.0008) | |
| 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.