All names: CCDM J18487+6853B, NLTT 47097, 2MASS J18484181+6852377, WDS J18488+6853B, Gaia DR2 2259262581356603136, ** LDS 2421B, WD 1848+688, LP 72-126, LSPM J1848+6852W, USNO-B1.0 1588-00153564, IDS 18494+6844 B
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 18 48 41.70 (0.09) | |
| Declination | 68 52 38.35 (0.08) | |
| Spectral type | DA | |
| 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] | 11.31 (0.09) |
| Distance | [pc] | 88.45 (0.7) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | 77.876 (0.2) |
| Proper motion (declination) | [mas/yr] | 163.475 (0.2) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 17.40 | |
| V magnitude | ||
| R magnitude | 17.40 | |
| I magnitude | ||
| J magnitude | 16.52 (0.1) | |
| H magnitude | 16.38 (0.2) | |
| K magnitude | ||
| u magnitude | ||
| g magnitude | ||
| r magnitude | ||
| i magnitude | ||
| z magnitude | ||
| G magnitude | 17.39 (0.002) | |
| 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.