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Line 26: − + − − Because 61 Virginis has a rotation of only 29 days and is photometically stable, it is believed to be an older star with an estimated age of 9.8 billion years.<ref name="vogt">http://eprintweb.org/S/article/astro-ph/0912.2599</ref> Further measurements show the star is orbiting the core of the [[Milky Way]] with an orbital eccentricity of 0.15, which is typical of old disk stars.<ref>http://adsabs.harvard.edu/abs/1999A&A...348..897L</ref>
→The Star
===The Star===
===The Star===
61 Virginis is a yellow-orange main sequence dwarf of spectral type G5-6 V. The star is a near twin of our own [[Sun]], with 92 to 96 percent of its mass, and 94 to 98 percent of its diameter.<ref>http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005ApJS..159..141V</ref> The star is also somewhat less luminous in comparison, with a total bolometric luminosity of 81 percent that of our Sun.<ref>http://adsabs.harvard.edu/abs/2008A%26A...487..373S</ref> The star is considered "metal-rich" with a [[metallicity]] 1.1 times that of our Sun, based on the abundance of [[iron]] in the star.
61 Virginis is a yellow-orange main sequence dwarf of spectral type G5-6 V. The star is a near twin of our own [[Sun]], with 92 to 96 percent of its mass, and 94 to 98 percent of its diameter.<ref>http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005ApJS..159..141V</ref> The star is also somewhat less luminous in comparison, with a total bolometric luminosity of 81 percent that of our Sun.<ref>http://adsabs.harvard.edu/abs/2008A%26A...487..373S</ref> The star is considered "metal-rich" with a [[metallicity]] 1.1 times that of our Sun, based on the abundance of [[iron]] in the star.
===61 Virginis b===
===61 Virginis b===