Cetus

Tuesday 19 September 2017 - 08:10:02 Posted by  Bobby
cetus2

 Mythology of Cetus

Cetus, which straddles the celestial equator south of Pisces and Aries, is a large constellation representing the mythical sea monster from whose jaws Andromeda was rescued by the hero Perseus. The brightest star in the constellation is Beta Ceti, magnitude 2.0.

 The Facts

  • Depiction: The Whale
  • Pronounced: SEE-tus
  • Genitive: Ceti
  • Abbreviation: Cet
  • Highest in the Sky: October to December
  • Size Ranking: 4th
  • Coverage Area: 1,231 Sq. Degrees
  • Right Acension: 2 hours
  • Declination: -10°
  • Visibility: 64°N to 75°S

 Notable Objects

  • Omicron Ceti: Star
  • M77: Barred spiral galaxy
  • NGC 246: Skull Nebula
  • NGC 247: Spiral galaxy
  • NGC 1055: Spiral galaxy

 Named Stars

  • Menkar, Alpha Ceti
  • Deneb Kaitos, Beta Ceti
  • Kaffaljidhma, Gamma Ceti
  • Baten Kaitos, Zeta Ceti
  • Deneb Algenubi, Eta Ceti
  • Deneb Kaitos Shemali, Iota Ceti
  • Mira, Omicron Ceti

 Best Viewed Objects/Stars

Omicron Ceti (Mira)

 A famous variable star. Mira is a red giant star, about 300 times larger than our Sun, that varies widely in brightness as it swells and contracts in size in a cycle that lasts approximately 11 months. At its brightest, it can reach 3rd or even 2nd magnitude. But it drops to 10th magnitude at its minimum. Mira, which was first identified as being variable in 1596, is a prototype of a class of long-period variables; referred to as Mira stars, they form the largest group of variable stars. Mira is Latin for "wonderful."

Tau Ceti

 A nearby, Sunlike star. It is similar to the Sun in tepmerature and luminosity, and at a distance of 11.9 light years it is among the 20th closest stars to Earth. It appears of magnitude 3.5.

M77

 A spiral galaxy, seen face-on from Earth. A telescope shows it as a small, round patch. It is the brightest of a class of galaxies known as Seyfert galaxies, which have particularly bright centers.

Cetus
cetus

 Where to?

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Up Next- Chamaeleon 

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