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Omega Centauri (ω Cen, NGC 5139, or Caldwell 80) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in 1677. Located at a distance of 17,090 light-years (5,240 parsecs ), it is the largest known globular cluster in the Milky Way at a diameter of roughly 150 light-years. [ 10 ]
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Omega Piscium (Omega Psc, ω Piscium, ω Psc) is a star approximately 106 light years away from Earth, in the constellation Pisces. It has a spectral type of F4IV, meaning it is a subgiant/dwarf star, and it has a temperature of 6,600 kelvins. It may or may not be a close binary star system. Variations in its spectrum were once interpreted as ...
The Omega Nebula is between 5,000 and 6,000 light-years from Earth and it spans some 15 light-years in diameter. The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter and has a mass of 30,000 solar masses. [3] The total mass of the Omega Nebula is an estimated 800 solar masses. [4]
Omega Sagittarii, which is Latinized from ω Sagittarii, is a binary star system in the constellation of Sagittarius, [9] near the eastern constellation border with Capricornus. It is formally named Terebellum / t ɛr ɪ ˈ b ɛ l əm /. [10] [11] This system has a yellow hue and is faintly visible to the naked eye with an apparent visual ...
Omega 1 Aquilae, which is Latinized from ω 1 Aquilae, is the Bayer designation for a single [8] star in the equatorial constellation of Aquila. With an apparent visual magnitude of 5.2 [ 2 ] it is a faint, yellow-white hued star that can be seen with the naked eye in dark skies.
Omega Fornacis, which is Latinized from ω Fornacis, is a wide binary star [11] system in the southern constellation of Fornax. It has a blue-white hue and is faintly visible to the naked eye as a fifth-magnitude star. [ 6 ]
Omega Draconis, Latinized from ω Draconis and also known as 28 Draconis, is a binary star in the constellation of Draco. The system is fairly close, and is located about 76 light-years (23 parsecs ) away, based on its parallax .