All names: LP 578-38, LSPM J2149+0415, SDSS J214913.61+041548.3, SDSS J214913.62+041548.4, USNO-B1.0 0942-00567015, Gaia DR2 2696628687474414208, 2MASS J21491360+0415500, NLTT 52166, PM J21492+0415
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 21 49 13.61 (0.08) | |
| Declination | 04 15 50.35 (0.07) | |
| 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] | 28.44 (0.09) |
| Distance | [pc] | 35.16 (0.1) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | 13.858 (0.1) |
| Proper motion (declination) | [mas/yr] | -219.549 (0.1) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 17.40 | |
| V magnitude | ||
| R magnitude | 15.50 | |
| I magnitude | ||
| J magnitude | 15.38 (0.05) | |
| H magnitude | 15.21 (0.08) | |
| K magnitude | 15.10 (0.1) | |
| u magnitude | 18.70 (0.02) | |
| g magnitude | 17.24 (0.005) | |
| r magnitude | 16.62 (0.005) | |
| i magnitude | 16.38 (0.005) | |
| z magnitude | 16.29 (0.008) | |
| G magnitude | 16.66 (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.