Cepheus (ìgwè kpakpando)

 

Cepheus bụ otu ìgwè kpakpando dị na mbara igwe dịpụrụ adịpụ, nke aha ya bụ Cepheus, eze Aethiopia na akụkọ ifo ndị Gris. Ọ bụ otu n’ime ìgwè kpakpando iri anọ na asatọ e depụtara na narị afọ nke abụọ onye na enyocha mbara igwe bụ́ Ptolemy, ọ bụkwa otu n’ime ìgwè kpakpando iri asatọ na asatọ n’oge a.

Kpakpando kpakpando kachasị na egbukepụ egbukepụ bụ Alfa Cephei, nke nwere oke nha 2.5. Delta Cephei bụ ihe atụ nke klas dị mkpa nke kpakpando a maara dị ka mgbanwe Cepheid. RW Cephei, onye na agba agba oroma, yana nnukwu ndị na acha uhie uhie Mu Cephei, MY Cephei, VV Cephei, na V354 Cephei so na kpakpando ndị kacha mara amara. Na mgbakwunye, Cepheus nwekwara hyperluminous quasar S5 0014 + 81, nke na akwado oghere ojii na enweghị atụ na isi ya, nke a kọrọ na ijeri 40 nke anyanwụ, ihe dị ka ugboro 10,000 buru ibu karịa oghere ojii etiti nke Milky Way, na eme nke a n'etiti nnukwu oghere ojii mara ugbu a.

Akụkọ ihe mere eme na akụkọ ifo

Cepheus bụ eze Aịtiopia. Ọ lụrụ Cassiopeia ma bụrụ nna Andromeda, ha abụọ na anwụ anwụ dị ka ìgwè kpakpando nke oge a yana Cepheus.

Atụmatụ

Otu kpakpando Cepheus dị ka a pụrụ ịhụ ya n'anya gba ọtọ

Alfa Cephei, nke a makwaara dị ka Alderamin, bụ kpakpando na egbukepụ egbukepụ n'ìgwè kpakpando ahụ, nwere oke nha 2.51. Delta Cephei bụ ihe atụ nke mgbanwe Cepheid, nnukwu kpakpando na acha odo odo nke dị afọ 980 site n'ụwa. John Goodricke chọpụtara na ọ na agbanwe agbanwe na 1784. Ọ na adị n'etiti 3.5m na 4.4m n'ime oge nke ụbọchị 5 na awa 9. The Cepheids bụ otu klas nke pulsating mgbanwe kpakpando; Delta Cephei nwere opekempe nha nke dayameta anyanwụ 40 yana oke nke dayameta anyanwụ 46. Ọ bụkwa kpakpando abụọ; kpakpando na acha odo odo nwekwara enyi nwere okirikiri na acha anụnụ anụnụ nwere oke 6.3.[5]

Enwere supergiants atọ na acha uhie uhie na igwe kpakpando nke anya gba ọtọ na ahụ. Mu Cephei, nke a makwaara dị ka Herschel's Garnet Star n'ihi agba uhie ya miri emi. Ọ bụ kpakpando na agbanwe obere oge nwere oke opekempe nke 5.1 yana oke kachasị nke 3.4. Oge ya dị ihe dịka afọ abụọ.[6] Kpakpando ahụ dị gburugburu 5.64 AU na radius. Ọ bụrụ na etinye ya n'etiti Sistemu Anyanwụ, ọ ga erute na orbit Jupita. Ọzọ, VV Cephei A, dị ka Mu Cephei, bụ ihe na acha uhie uhie na-acha uhie uhie na kpakpando na agbanwe agbanwe, nke dị ma ọ dịkarịa ala afọ 5,000 site na Ụwa. O nwere opekempe ịdị ukwuu nke 5.4 na oke kachasị nke 4.8, yana jikọtara ya na kpakpando usoro nke na acha anụnụ anụnụ nke a na akpọ VV Cephei B. Otu n'ime kpakpando kachasị ukwuu na ụyọkọ kpakpando, o nwere dayameta 1,400 karịa nke anyanwụ. [6] ] VV Cephei bụkwa ọnụọgụ abụọ nke na ekpuchi anya ogologo oge na adịghị ahụkebe, mana chi jiri n'ehihie, nke na eme kwa afọ 20.3, na ada mbà nke ukwuu nke a na ejighị anya hụ ya. T Cephei, bụkwa nnukwu uhie uhie, bụ mgbanwe Mira nwere oke opekempe nke 11.3 yana oke 5.2, 685 ìhè afọ site na Ụwa. Ọ nwere oge nke ọnwa 13 na dayameta dị n'etiti 329 ruo 500 dayameta anyanwụ.[6]

Enwere ọtụtụ kpakpando abụọ a ma ama na kpakpando ọnụọgụ abụọ na Cepheus. Omicron Cephei bụ kpakpando ọnụọgụ abụọ nwere oge nke afọ 800. Usoro a, 211 ìhè afọ site na Ụwa, mejupụtara nnukwu oroma hued isi nke ịdị ukwuu nke 4.9 na nke abụọ nke ịdị ukwuu 7.1. Xi Cephei bụ kpakpando ọnụọgụ abụọ ọzọ, 102 ìhè afọ site na Ụwa, na oge nke 4,000 afọ. Ọ nwere isi na acha anụnụ anụnụ-ọcha nke nha 4.4 na nke abụọ na acha odo odo nke ịdị ukwuu 6.5.[6]

Kruger 60 bụ kpakpando ọnụọgụ abụọ dị nha nke iri na otu nke nwere dwarf abụọ na acha uhie uhie. Usoro kpakpando bụ otu n'ime kacha nso, ebe ọ bụ naanị afọ 13 ìhè site na Ụwa.

Cepheus C & B Regions – Spitzer Space Telescope (30 May 2019)

Ihe dị omimi nke mbara igwe

NGC 7354 is a planetary nebula located in the constellation Cepheus

Nlere anya

Cepheus dị ka egosiri na Urania's Mirror, otu kaadị kpakpando e bipụtara na London, c. 1825

A na egosipụtakarị Cepheus ka o jide aka ya elu, na ekpe ekpere maka chi ka ha gbanarị ndụ Andromeda. A kọwakwara ya dị ka onye ọchịchị ọzọ nọkwasịrị n'ocheeze ya.

Dakọtara

In Chinese astronomy, the stars of the constellation Cepheus are found in two areas: the Purple Forbidden enclosure (紫微垣, Zǐ Wēi Yuán) and the Black Tortoise of the North (北方玄武, Běi Fāng Xuán Wǔ).

Ntọhapụ aha

USS Cepheus (AKA-18), nke akpọrọ aha ya

• <i id="mwsQ">Cepheus</i> (AKA-18) and USS Cepheus (AK-265), United States Navy ships.
• Update 3.4 "Cepheus" of the videogame Stellaris 

Hụkwa

• Cepheus na mbara igwe nke China

Ntụaka

• Levy (2005). Deep Sky Objects. Prometheus Books. ISBN 1-59102-361-0. 
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• Ian Ridpath and Wil Tirion (2007). Stars and Planets Guide, Collins, London.  ISBN 978-0-00-725120-9. Princeton University Press, Princeton.  ISBN 978-0-691-13556-4.
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Njikọ mpụga

• The Deep Photographic Guide to the Constellations: Cepheus
• The clickable Cepheus
• Star Tales – Cepheus
• Warburg Institute Iconographic Database (ca 160 medieval and early modern images of Cepheus)