All names: USNO-B1.0 1194-00172533, SDSS J092208.19+292810.9, Gaia DR2 695775871499726208, LP 313-49, NLTT 21566, SDSS J092208.20+292811.0, EQ J0922+2928, LSPM J0922+2928
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 09 22 08.26 (0.3) | |
| Declination | 29 28 11.64 (0.2) | |
| 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] | 8.73 (0.4) |
| Distance | [pc] | 114.55 (5) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -218.283 (0.5) |
| Proper motion (declination) | [mas/yr] | -166.211 (0.3) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 18.00 | |
| V magnitude | ||
| R magnitude | 18.40 | |
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | 18.77 (0.02) | |
| g magnitude | 18.51 (0.008) | |
| r magnitude | 18.47 (0.008) | |
| i magnitude | 18.59 (0.01) | |
| z magnitude | 18.71 (0.03) | |
| G magnitude | 18.48 (0.002) | |
| 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.