Tuesday 19 September 2017 - 21:46:07 Posted by  Bobby

 Invention of Sextans

Sextans is a faint constellation on the celestial equator, south of Leo. It was invented in the late 17th century by the Polish astronomer Johannes Hevelius and represents the sextant with which he measured star positions. Its brightest star is Alpha Sextantis, magnitude 4.5.

 The Facts

  • Depiction: The Sextant
  • Pronounced: SEX-tanz
  • Genitive: Sextantis
  • Abbreviation: Sex
  • Highest in the Sky: March to April
  • Size Ranking: 47th
  • Coverage Area: 314 Sq. Degrees
  • Right Acension: 10 hours
  • Declination:
  • Visibility: 77°N to 85°S

 Notable Objects

  • Gamma Sextantis: Binary star
  • NGC 3115: Lenticular galaxy
  • NGC 3166: Spiral galaxy
  • NGC 3169: Spiral galaxy
  • NGC 3044: Spiral galaxy

 Best Viewed Objects/Stars

17 and 18 Sextantis

 A wide pair of unrelated stars detectable with the naked eye by those with good eyesight and easy to divide with binoculars. They are of magnitudes 5.9 and 5.6, and lie 530 and 470 light-years away.

NGC 3115 (The Spindle Galaxy)

 An elliptical galaxy visible through a telescope of small to moderate aperture. Its elongated shape gives rise to its popular name.

 Where to?

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