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Azụ (ìgwè kpakpando)

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Foto nke ìgwè kpakpando Pisces, azụ

 

.Pisces bụ nke nke zodiac .  Nnukwu nnukwu ya – na asterism bụ isi a na-ele anya n'alọ omenala ndị Europe kwa oge ochie nke Gris na Rom dị ka azụ dị anya n'azụ n'otu eriri nke ọ ALA na-akpata na elu – dị na Northern Celestial Hemisphere  .  Akara mbara igwe ochie ya bụ</img> (♓︎).  Aha ya bụ Latin maka "azụ".  Ọ dị n'etiti Aquarius, nke yiri nha, na ndị na-eme egwuregwu na Aries, nke dị egwu, n'ebe ọmụmụ.  Eclipti na ndị equator na-agbakọta n'ime m ikemịka na Virgo .  Nke a ụmụaka na-enwe na-agafe ụzọ n'elu equator, na nkezi, n'ihe dị ka ebe a na mbara igwe, na March equinox .

The March equinox dị ugbu a na Pisces, n'ihi na ndịda nke ω Psc, na, n'ihi precession, ji izi ozi drifting n'ihi anọ, dị nnọọ n'okpuru ọchịchị azụ kwupụta Aquarius.

  • Alrescha ("ụdọ"), ma ọ bụghị Alfa Piscium (α Psc), 309.8 lightyears, klas A2, ịdị ukwuu 3.62. Kpakpando ọnụọgụ abụọ na-agbanwe agbanwe. [1]
  • Fumalsamakah [2] ("ọnụ azụ"), ma ọ bụghị Beta Piscium (β Psc), 492 lightyears, klas B6Ve, ịdị ukwuu 4.48
  • Delta Piscium (δ Psc), afọ ọkụ 305, klas K5III, ịdị ukwuu 4.44. Dị ka kpakpando ndị ọzọ dị nso na eklips, Delta Piscium nọ n'okpuru mgbaasị ọnwa.
  • Epsilon Piscium (ε Psc), 190 lightyears, klas K0III, ịdị ukwuu 4.27. Nwere onye ndoro-ndoro ochichi exoplanet.
  • Revati [2] ("ọgaranya"), ma ọ bụghị Zeta Piscium (ζ Psc), 148 lightyears, klas A7IV, ịdị ukwuu 5.21. Sistemụ kpakpando quintuple.
  • Alpherg ("na-efu"), [2] ma ọ bụghị Eta Piscium (η Psc), 349 lightyears, klas G7 IIIa, ịdị ukwuu 3.62. Ọ bụ mgbanwe Gamma Cassiopeiae nwere oghere ndọta na-adịghị ike.
  • Torcular ("eriri"), [2] ma ọ bụghị Omicron Piscium (ο Psc), 258 lightyears, klas K0III, ịdị ukwuu 4.2. Ọ bụ nnukwu kpakpando na-acha uhie uhie n'alaka kwụ ọtọ .
  • Omega Piscium (ω Psc), afọ ọkụ 106, klas F4IV, ịdị ukwuu 4.03. Ọ bụ ụdị F-kpakpando nke bụ ma subgiant ma ọ bụ na isi usoro.
  • Gamma Piscium (γ Psc), afọ ọkụ 138, ịdị ukwuu 3.70. Kpakpando ahụ na-akwado exoplanet nke achọpụtara na 2021. [3] Ọ nwere ụdị spectral nke G8 III. [4]
  • Kpakpando Van Maanen bụ dwarf ọcha naanị anyị kacha ama ama, nke nwere oke nchara. Ọ dị ihe dị ka 2° n'ebe ndịda kpakpando Delta Piscium, na-enwe mmegharị ahụ kwesịrị ekwesị dị elu nke 2.978″ kwa afọ n'akụkụ ọnọdụ 155.538°. Ọ dị nso na anyanwụ karịa dwarf ọcha ọ bụla ọzọ nọ naanị ya. Ọ na-agwụkwa ike ka e jiri anya gba ọtọ hụ ya . [5] Dị ka dwarfs ndị ọzọ na-acha ọcha, ọ bụ kpakpando dị oke oke: a na-eme atụmatụ na oke ya dị ihe dịka 67% nke Sun's, ma ọ nwere nanị 1% nke radius anyanwụ . Igwe ikuku dị n'èzí nwere okpomoku dị ihe dịka 6,110 K, [6] nke dịtụ mma maka dwarf ọcha. Ka dwarf niile na-acha ọcha na-ekpochapụ ọkụ ha ka oge na-aga, enwere ike iji ọnọdụ okpomọkụ a tụọ afọ ya, chere na ọ dị ihe dịka 3. ijeri afọ. A na-eche na mbụ dị ka kpakpando ụdị F tupu amata njirimara nke dwarfs ọcha.

. [7]M74 bụ ọnya na-adịghị mma (ụdị Sc) gburugburu mkpọ na Pisces, nke a imera n'ebe dị anya nke nde afọ 30 ( redshift 0.0022).  O ọtụtụ nwere ike ndị na-eto eto na nebulae ndị mgbasa ya, na-egosi nnukwu mpaghara ozi .  Onye France na-ekiri mbara igwe bụ Pierre Méchain emechira ya na 1780. Achọpụtara ụdị supernova II-P na mpaghara mpụta nke M74 site n'aka Robert Evans na June 2003;  Ozi nke mere supernova ka e ihu mara dị ka onye na-acha uhie nke nwere oke ihe 8. Ọ bụ onye nkuzi na-akpa nke otu M74 [8] [9]

  1. ↑ Wraight (2012). "A photometric study of chemically peculiar stars with the STEREO satellites - I. Magnetic chemically peculiar stars". Monthly Notices of the Royal Astronomical Society 420 (1). DOI:10.1111/j.1365-2966.2011.20090.x. 
  2. ↑ 2.0 2.1 2.2 2.3 Naming Stars. IAU.org. Retrieved on 8 August 2018.
  3. ↑ Teng, Huan-Yu; Sato, Bun'ei; Takarada, Takuya; Omiya, Masashi; Harakawa, Hiroki; Izumiura, Hideyuki; Kambe, Eiji; Takeda, Yoichi; Yoshida, Michitoshi; Itoh, Yoichi; Ando, Hiroyasu; Kokubo, Eiichiro (2022), "Regular radial velocity variations in nine G- and K-type giant stars: Eight planets and one planet candidate", Publications of the Astronomical Society of Japan, 74: 92–127, arXiv:2112.07169, doi:10.1093/pasj/psab112
  4. ↑ Baines (2018). "Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer". The Astronomical Journal 155 (1). DOI:10.3847/1538-3881/aa9d8b. 
  5. ↑ Kpọpụta njehie: Invalid <ref> tag; no text was provided for refs named burham1978
  6. ↑ Kpọpụta njehie: Invalid <ref> tag; no text was provided for refs named Limoges2015
  7. ↑ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge University Press. ISBN 978-0-521-35299-4. 
  8. ↑ A. Garcia (1993). "General study of group membership. II – Determination of nearby groups". Astronomy and Astrophysics Supplement 100: 47–90. 
  9. ↑ G. Giuricin (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal 543 (1): 178–194. DOI:10.1086/317070. 
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