All names: WD 1421+308, NLTT 37197, 2MASS J14233662+3037426, USNO-B1.0 1206-00220509, SDSS J142336.65+303741.7, LP 325-33, SDSS J142336.65+303741.6, Gaia DR2 1284932139108595712, LSPM J1423+3037, SDSS J142336.64+303741.6, PM J14236+3037
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 14 23 36.64 (0.08) | |
| Declination | 30 37 42.48 (0.09) | |
| 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] | 14.58 (0.1) |
| Distance | [pc] | 68.57 (0.6) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | 25.263 (0.2) |
| Proper motion (declination) | [mas/yr] | -200.383 (0.2) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 18.80 | |
| V magnitude | ||
| R magnitude | 17.30 | |
| I magnitude | ||
| J magnitude | 16.44 (0.1) | |
| H magnitude | 16.18 (0.2) | |
| K magnitude | 15.67 (0.2) | |
| u magnitude | 19.50 (0.03) | |
| g magnitude | 18.17 (0.006) | |
| r magnitude | 17.57 (0.006) | |
| i magnitude | 17.36 (0.006) | |
| z magnitude | 17.27 (0.01) | |
| G magnitude | 17.62 (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 (LANL). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.