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Libra's status as the location of the equinox earned the equinox the name "First Point of Libra", though this location ceased to coincide with the constellation in 730 BC because of the precession of the equinoxes. In ancient Egypt the three brightest stars of Libra (α, β, and σ Librae) formed a constellation that was viewed as a boat. [7]
In diagrams using such coordinate systems, it is often indicated with the symbol ♈︎. Named for the constellation of Aries, it is one of the two points on the celestial sphere at which the celestial equator crosses the ecliptic, the other being the first point of Libra, located exactly 180° from it.
The Bayer designation naming scheme for stars typically uses the first Greek letter, α, for the brightest star in each constellation, and runs through the alphabet before switching to Latin letters. In mathematical finance , the Greeks are the variables denoted by Greek letters used to describe the risk of certain investments.
The zodiac symbols are also sometimes used to represent points on the ecliptic, particularly the solstices and equinoxes. Each symbol is taken to represent the "first point" of each sign, rather than the place in the visible constellation where the alignment is observed.
Orbital Parameters of a Cosmic Object: . α - RA, right ascension, if the Greek letter does not appear, á letter will appear. δ - Dec, declination, if the Greek letter does not appear, ä letter will appear.
ζ 2 Librae (abbreviated Zeta 2 Librae, Zeta 2 Lib, ζ 2 Lib), also known as 33 Librae, is a variable star in the constellation Libra. It is approximately 261 light-years away from the Sun. [2] Zeta 2 Librae does not have an HR number, although it is included in the Bright Star Catalogue Supplement. [3] [4]
Libra is represented by the symbol of scales in the zodiac, which resonates with the balance the sign seeks in love and relationships. On one hand, Libras enjoy working a room and meeting new people.
Kappa Librae, Latinized from κ Librae, is the Bayer designation for a star system in the zodiac constellation of Libra. Its apparent visual magnitude is 4.72, [2] so it can be seen with the naked eye. The annual parallax shift of 10.57 mas [1] indicates it is roughly 310 light years away. It is positioned 0.02 degrees south of the ecliptic.