High Quality Content by WIKIPEDIA articles! Xi Virginis is a star in the constellation Virgo. Xi Virginis is a white A-type main sequence dwarf with an apparent magnitude of +4.84. It is approximately 120 light years from Earth. A star is a massive, luminous ball of plasma held together by gravity. The star nearest to Earth is the Sun, which is the source of most of the energy on Earth. Other stars are visible in the night sky, when they are not outshone by the Sun. Historically, the most prominent stars on the celestial sphere were grouped together into constellations, and the brightest stars gained proper names.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.