All names: LSPM J1039+3800, Gaia DR2 752057981939651584, NLTT 24978, 2MASS J10395514+3800358, LP 263-8, SDSS J103955.08+380037.1, SDSS J103955.08+380037.0, WIRED J103955.08+380037.0, USNO-B1.0 1280-00228894
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 10 39 55.15 (0.1) | |
| Declination | 38 00 36.76 (0.1) | |
| 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] | 12.88 (0.1) |
| Distance | [pc] | 77.65 (0.9) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -204.466 (0.2) |
| Proper motion (declination) | [mas/yr] | 80.522 (0.2) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 18.50 | |
| V magnitude | ||
| R magnitude | 18.20 | |
| I magnitude | ||
| J magnitude | 16.92 (0.1) | |
| H magnitude | ||
| K magnitude | ||
| u magnitude | 18.53 (0.01) | |
| g magnitude | 17.99 (0.006) | |
| r magnitude | 17.85 (0.006) | |
| i magnitude | 17.80 (0.007) | |
| z magnitude | 17.84 (0.02) | |
| G magnitude | 17.84 (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.