All names: LP 577-36, PM J21222+0413, LSPM J2122+0413, NLTT 51121, 2MASS J21221234+0413565, SDSS J212212.31+041354.4, USNO-B1.0 0942-00558698, WD 2119+040, SDSS J212212.32+041354.4
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 21 22 12.35 (0.06) | |
| Declination | 04 13 56.77 (0.06) | |
| Spectral type | DA9 | |
| 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] | 41.33 (0.08) |
| Distance | [pc] | 24.19 (0.05) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -75.671 (0.1) |
| Proper motion (declination) | [mas/yr] | -413.212 (0.1) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 17.50 | |
| V magnitude | ||
| R magnitude | 16.20 | |
| I magnitude | ||
| J magnitude | 15.24 (0.05) | |
| H magnitude | 15.01 (0.07) | |
| K magnitude | 14.88 (0.1) | |
| u magnitude | 18.87 (0.02) | |
| g magnitude | 17.22 (0.005) | |
| r magnitude | 16.50 (0.005) | |
| i magnitude | 16.24 (0.005) | |
| z magnitude | 16.13 (0.007) | |
| G magnitude | 16.55 (0.0009) | |
| 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.