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Gamma Andromedae, Latinized from γ Andromedae, is the third-brightest point of light in the northern constellation of Andromeda. It is a multiple star system approximately 390 light-years from Earth. The system is drifting closer to the Sun with a radial velocity in the range of −12 to −14 km/s.
Eta Sagittarii is a binary star system in the southern zodiac constellation of Sagittarius. Based upon parallax measurements, it is located at a distance of 146 light-years from Earth. In India, where part of the constellation of Sagittarius represents an Elephant, this star forms the creature's tail.
Zeta Ceti is a binary star in the equatorial constellation of Cetus. It has a combined apparent visual magnitude of 3.74, which is bright enough to be seen with the naked eye. Based upon parallax measurements taken during the Hipparcos mission, it is approximately 235 light-years from the Sun.
Eta Ceti is a star in the equatorial constellation of Cetus. It has the traditional name Deneb Algenubi or Algenudi. The apparent visual magnitude of this star is +3.4, making it the fourth-brightest star in this otherwise relatively faint constellation. The distance to this star can be measured directly using the parallax technique, yielding a value of 120.5 light-years.
Theta Ceti, Latinized from θ Ceti, is a solitary, orange-hued star in the equatorial constellation of Cetus. It is visible to the naked eye with an apparent visual magnitude of 3.60. Based upon an annual parallax shift of 20m04 mas as seen from Earth, it is located about 113 light-years from the Sun. At that distance, the visual magnitude is diminished by an extinction factor of 0.28 due to interstellar dust.
Upsilon Ceti, Latinized from υ Ceti, is a solitary star in the equatorial constellation of Cetus. It is visible to the naked eye with an apparent visual magnitude of 3.95. Based upon an annual parallax shift of 11.14 mas, it is located about 293 light years from the Sun.
References
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- Kostjuk, N. D. (2002). "HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index" . Retrieved 2006-12-26.
- Roman, N. G. (1987). "Identification of a Constellation from a Position" . Retrieved 2006-12-26.
- "SIMBAD Astronomical Database". Centre de Données astronomiques de Strasbourg. Retrieved 2007-01-02.
- Gould, B. A. "Uranometria Argentina". Reprinted and updated by Pilcher, F. Archived from the original on 2012-02-27. Retrieved 2010-07-19.
- Samus, N. N.; Durlevich, O. V.; et al. (2004). "Combined General Catalogue of Variable Stars (GCVS4.2)" . Retrieved 2012-07-18.
- Samus, N. N.; Durlevich, O. V.; et al. (2012). "General Catalog of Variable Stars (GCVS database, version 2012Apr)" . Retrieved 2012-07-18.
- 1 2 3 4 E.B Knobel – On a catalogue of stars in the Calendarium of Al Achsasi Al Mouakket
- 1 2 3 4 5 Consisting with θ Cet, η Cet (Deneb Algenubi), ζ Cet (Baten Kaitos), and υ Cet, were Al Naʽāmāt, the Hen Ostriches See Star Names, R.H. Allen, p. 160
- 1 2 3 4 5 η Cet as Aoul al Naamat or Prima Struthionum (the first ostrich), θ Cet as Thanih al Naamat or Secunda Struthionum (the second ostrich), τ Cet as Thalath al Naamat or Tertia Struthionum (the third ostrich), and ζ Cet as Rabah al Naamat or Quarta Struthionum (the fourth ostrich). υ Cet should be Khamis al Naamat or Quinta Struthionum (the fifth ostrich) consistently, but Al Achsasi al Mouakket designated the title the fifth ostrich to γ Gam with uncleared consideration.
- ↑ "Mexico". NameExoWorlds . Retrieved 2020-03-13.
- ↑ "Cuba". NameExoWorlds . Retrieved 2020-03-13.
- ↑ "Tanzania". NameExoWorlds . Retrieved 2020-03-13.
