All names: Gaia DR2 3941584293192908928, WDS J12573+1925A, SDSS J125720.97+192503.8, ** SLN 73A, SDSS J125720.96+192503.8
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 12 57 20.97 (0.5) | |
| Declination | 19 25 03.94 (0.3) | |
| 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] | 1.60 (0.5) |
| Distance | [pc] | 624.02 (195) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -38.522 (1) |
| Proper motion (declination) | [mas/yr] | -30.512 (0.7) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | ||
| V magnitude | ||
| R magnitude | ||
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | 20.46 (0.05) | |
| g magnitude | 19.86 (0.01) | |
| r magnitude | 20.02 (0.02) | |
| i magnitude | 20.31 (0.03) | |
| z magnitude | 20.39 (0.1) | |
| G magnitude | 20.04 (0.005) | |
| 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.