All names: NLTT 23936, SDSS J101800.01+083820.3, Gaia DR2 3875789001991057536, LSPM J1018+0838, LP 489-64, 2MASS J10180002+0838206, SDSS J101800.00+083820.2, WD 1015+088, USNO-B1.0 0986-00199468, TIC 350019983, SDSS J101800.00+083820.3
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 10 18 00.04 (0.08) | |
| Declination | 08 38 20.53 (0.08) | |
| Spectral type | DQ | |
| 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] | 22.82 (0.09) |
| Distance | [pc] | 43.81 (0.2) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -210.463 (0.2) |
| Proper motion (declination) | [mas/yr] | -116.553 (0.1) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 16.40 | |
| V magnitude | ||
| R magnitude | 16.10 | |
| I magnitude | ||
| J magnitude | 16.00 (0.009) | |
| H magnitude | 15.90 (0.01) | |
| K magnitude | 15.93 (0.02) | |
| u magnitude | 16.80 (0.007) | |
| g magnitude | 16.42 (0.004) | |
| r magnitude | 16.37 (0.004) | |
| i magnitude | 16.43 (0.005) | |
| z magnitude | 16.56 (0.009) | |
| G magnitude | 16.35 (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 (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.