Wolf 424
Encyclopedia : W : WO : WOL : Wolf 424
|- style="vertical-align: top;" | B-V color index | |- style="vertical-align: top;" | U-B color index | |- style="vertical-align: top;" | Variable type |
|- ! style="background-color: #FFFFC0;" colspan="2" | Visual binary orbit |- style="vertical-align: top;" | Companion | GJ 473 B |- style="vertical-align: top;" | Period (P) | 16.2 years |- style="vertical-align: top;" | Semimajor axis (a) | 0.76" |- style="vertical-align: top;" | Eccentricity (e) | 0.28 |- style="vertical-align: top;" | Inclination (i) | 103° |- style="vertical-align: top;" | Node (Ω) | 151° |- style="vertical-align: top;" | Periastron epoch (T) | 1961.6
|- ! style="background-color: #FFFFC0;" colspan="2" | Other designations |- | colspan="2" |
The Wolf 424 system has a mean orbital radius of 4.1 AU and an eccentricity of 0.28. The stars have an orbital period of 16.2 years and have an apparent magnitude of about 12.5.
Wolf 424A is a cool main sequence red dwarf star of approximately 0.14 solar masses and a radius of 0.17 solar radii. It is one of the dimmest objects within 15 light years of the Sun. Its companion, Wolf 424B, is a cool main sequence red dwarf star of approximately 0.13 solar masses and a radius of 0.14 solar radii. It is a known flare star that has been designated FL Virginis, and may experience sunspot activity.
See also
References
- W. D. Heintz, "Astrometric study of 4 binary stars", 1972, Astronomical Journal, 77, 160.
- G. Torres, T. J. Henry, O. G. Franz, L. H. Wasserman, "The nearby low-mass visual binary Wolf 424", Astronomical Journal, 117, 1999.
External links
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.