Thursday 17 January 2019

Xuange [laBoo], amazing daring

Xuange [Lambda Boötis, laBoo, λ Boo] is the 6th brightest star in the constellation Bootes (the Herdsman), with a visual magnitude of +4,18. It is located at a distance of 99 light years from the solar system.

The traditional name 'Xuange' derives from the Chinese 玄 戈 'Xuángē', which means 'sombre lance', because this star marks itself and is alone in the asterism 'Forbidden Purple Enclosure'. This star is also part of the Arab asterism ألعولد ألذعب 'Al Aulād al dhiʼb', which means 'hyena cubs'.


Xuange is a white main sequence dwarf star of spectral type A3 V, with a surface temperature of 8720 K. It has a rotation speed of 100 km/s.

Photometric observations were carried out in F
ebruary 2001, November 2002, December 2006 and March 2009.

Position in relation to the ecliptic:

  • Longitude: 187.2º ( 7º14' Libra; (onci)trevigintile@172º10', 0º36' orb; (doci)quinvigintile@172º48', 0º02' orb)
  • Latitude:  54.7º (24º39' Taurus; (bi)trecile@55º23', 0º44' orb).

Position in relation to the celestial equator:

  • Right ascension: 214.1º ( 4º 6' 8th House; (treci)cuartioctile@146º15', 0º21' orb; golden aspect 145º37' [=golden aspect 34º23' > 0º Libra], 0º17' orb)
  • Declination:  46.1º (16º 5' 2nd House; semisquare 45º, 1º05' orb)

The star Xuange reminds the planets Mars, Saturn and Uranus. The symbolic image 'sombre lance' refers to dangers that must be seriously considered. The symbolic image 'hyena cubs' refers to the inevitable confrontations of these animals with other predators (with an inequality emphasized by the fact of being puppies), due to their habits of satiating themselves in their slaughter. Depending on the area, striped hyenas can fury battles with other species of hyenas, wolves, lions, cheetahs and leopards among others, although they do not usually end in death.

Theo James and Shailene Woodley, "Divergent" (2014)

It is related with an amazing ability to assert oneself and make things clear from the beginning.

"Fifty Shades Freed" (2018)

Theo James, actor of the movie "Divergent" (2014), has Xuange in Libra (8th Moon-Node House) in conjunction with Juno, which is in trine with Venus in Aquarius (4th Moon-Node House), which is in trine with Chiron in Gemini (12th Moon-Node House).

Shailene Woodley, actress of the movie "Diergent" (2014), has Xuange in Libra (th Moon-Node House) in conjunction with Venus, which is in sextile with Ceres in Sagittarius (2nd Moon-Node House) and in sextile with Chiron in Leo (6th Moon-Node House). 

Sandra Oh, "Grey's Anatomy" (2005)

Sandra Oh, actress of the TV series "Anatomy of Gray" (2005), has Xuange in Libra (5th Moon-Node House) in conjunction with the Black Moon, which is in conjunction with Uranus; in quadrature with Ceres in Cancer (8th Moon-Node House); and in binovile with Venus in Cancer (7th Moon-Node House).