All names: 2MASS J16221438-5050532, ** LDS 857, UCAC4 196-133494, WDS J16221-5052AB, USNO-B1.0 0391-00551665, WD 1618-507, L 266-18, UCAC2 10019885
| Parameter | Unit | Simbad | White Dwarf Catalog (McCook & Sion 1999) | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|
| Right ascension | 16 22 14.40 | 16 22 06.10 | 16 22 06.10 | |
| Declination | -50 50 53.03 | -50 52 03.00 | -50 52 03.00 | |
| Spectral type | DA+DA | DA | 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] | |||
| Distance | [pc] | |||
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.5 | ||
| Proper motion (declination) | [mas/yr] | 3.2 | ||
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | yes | yes | ||
| B magnitude | 15.40 | |||
| V magnitude | ||||
| R magnitude | 14.25 | |||
| I magnitude | ||||
| J magnitude | 12.88 | |||
| H magnitude | 12.44 | |||
| K magnitude | 12.24 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | ||||
| 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 at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.