Norma

Tuesday 19 September 2017 - 21:13:28 Posted by  Bobby
norma2

 Invention of Norma

Norma lies in the Milky Way between Ara and Lupus. Introduced in the 18th centure by the French astronomer Nicolas Louis de Lacaille, it depicts a draftman's level or try square. It adjoins another Lacaille invention, Circinus, the compasses. There are no stars labeled or Beta Normae due to boundary changes since Lacaille's time.

 The Facts

  • Depiction: The Square
  • Pronounced: NOR-mah
  • Genitive: Normae
  • Abbreviation: Nor
  • Highest in the Sky: June
  • Size Ranking: 74th
  • Coverage Area: 165 Sq. Degrees
  • Right Acension: 16 hours
  • Declination: -50°
  • Visibility: 35°N to 90°S

 Notable Objects

  • NGC 6067: Open cluster
  • NGC 6087: Open cluster
  • NGC 6164-65: Emission Nebula
  • SP-3: Planetary nebula

 Best Viewed Objects/Stars

Gamma Normae

 A double star, constisting of unrelated components that can be separated with the naked eye. The primary, Gamma-2, is the brightest star in the constellation; it is an orange giant star of magnitude 5.0, is an immensely luminous yellow supergiant more than 100 times farther away.

Epsilon Normae

 A double star, with components of magnitudes 4.5 and 6.7 that can be separated with a small telescope.

Iota-1 Normae

 A double star. The components, of magnitudes 4.6 and 8.1, can be divided with a small telescope. Iota-2 is an unrelated 6th magnitude star that lies some distance away.

Norma
norma

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