All names: USNO-B1.0 1241-00203321, LSPM J1249+3407, [B68b] 47, CBS 357, Gaia DR2 1515081328918440064, SDSS J124911.87+340705.5, LP 267-248, NLTT 31999, SDSS J124911.88+340705.5, AB 13, WIRED J124911.87+340705.5, [VV2010] J124911.9+340705
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 12 49 11.97 (0.08) | |
| Declination | 34 07 05.09 (0.06) | |
| Spectral type | DQ | |
| 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] | 13.95 (0.1) |
| Distance | [pc] | 71.69 (0.5) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -256.39 (0.2) |
| Proper motion (declination) | [mas/yr] | 76.627 (0.1) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 17.51 | |
| V magnitude | ||
| R magnitude | 16.90 | |
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | 17.35 (0.009) | |
| g magnitude | 17.11 (0.005) | |
| r magnitude | 17.17 (0.005) | |
| i magnitude | 17.28 (0.006) | |
| z magnitude | 17.39 (0.01) | |
| G magnitude | 17.11 (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.