18 Delphini b sahifasining manbasini koʻrish

{{Sayyora bilgiqutisi|name=18 Delphini b|apsis=astron|kashfiyotchi=[[Bun'ei Sato|Sato]] ''et al.''<ref name="Sato2008"/>|discovery_site=[[Okayama Planet Search Program|Okayama Planet<br /> Search Program]]<br />{{flag|Japan}}|period=993.3 ± 3.2 [[day|d]]<br />2.719 [[year|y]]|tisserand=<!-- PHYS CHARS          -->|atmosphere_composition=<!-- NOTES               -->|discoverer=19 February 2008|discovery_method=[[radial]]|discovery_ref=<!-- DESIGNATIONS        -->|adjective=<!-- ORBITAL             -->|semimajor={{convert|2.6|AU|km|abbr=on}}|eccentricity=0.08 ± 0.01|time_periastron=2451672 ± 18|arg_peri=166.1 ± 6.5|family=<!-- ATMOSPHERE          -->}}
[[Fayl:18_Del_b_rv.pdf|link=//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/18_Del_b_rv.pdf/page1-275px-18_Del_b_rv.pdf.jpg|left|thumb|275x275px|Radial tezlikdagi 18 Delphini b orbitasining vaqt oʻtishi bilan oʻzgarishi.]]
'''18 Delphini b''' (qisqartirilgan '''18 Del b'''), rasmiy nomi '''Arion''' {{IPAc-en|@|'|r|ai|@|n}}, [[Delfin (yulduz turkumi)|Delfin]] [[Yulduz turkumlari|yulduzlar turkumida]] joylashgan va Yerdan taxminan 249 [[Yorugʻlik yili|yorugʻlik yili]] uzoqlikdagi, quyosh tizimidan tashqarida joylashgan [[Ekzosayyora|sayyoradir]].

Sayyoraning aylanish davri 993 kunni tashkil etadi. [[Orbital davr|U]] [[Gigant yulduzlar|sariq gigant]] [[Yulduz|yulduz boʻlgan]] 18 Delphini atrofida aylanadi. Sayyoraning [[Massa|minimal massasi]] 10,3 M J boʻlib, Bunʼei Sato tomonidan 2008-yil, 19- fevralda kashf etgan.

2014-yil iyul oyida [[Xalqaro astronomiya ittifoqi|Xalqaro Astronomiya Ittifoqi]] NameExoWorlds dasturini ishga tushirdi. Bu bizga maʼlum ekzosayyoralar va ularning yulduzlariga tegishli nomlar berish jarayoni<ref>[http://www.iau.org/news/pressreleases/detail/iau1404/ NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars] {{Webarxiv|url=https://web.archive.org/web/20170904221813/https://www.iau.org/news/pressreleases/detail/iau1404/ |date=2017-09-04 }}.</ref>. Jarayon yangi nomlar uchun jamoatchilik tomonidan takliflar ilgari surish va munosiblariga ovoz berishdan iborat jarayoni <ref>{{Veb manbasi |sarlavha=NameExoWorlds The Process |url=http://nameexoworlds.iau.org/process |kirish sanasi=2022-08-03 |arxivsana=2015-08-15 |arxivurl=https://web.archive.org/web/20150815025117/http://www.nameexoworlds.iau.org/process }}</ref>. 2015-yil dekabr oyida IAU ushbu sayyora uchun Arion nomini eʼlon qildi <ref>[http://www.iau.org/news/pressreleases/detail/iau1514/ Final Results of NameExoWorlds Public Vote Released] {{Webarxiv|url=https://web.archive.org/web/20171202072549/http://www.iau.org/news/pressreleases/detail/iau1514/ |date=2017-12-02 }}, International Astronomical Union, 15 December 2015.</ref>. Ushbu nom [[Yaponiya|Yaponiyaning]] [[Tokusima]] prefekturasida joylashgan, Jonan oʻrta maktabi ilmiy klubi tomonidan taqdim etilgan. Arion qadimgi Yunonistonda sheʼriyat va musiqa dahosi edi. Afsonaga koʻra, uning hayotini [[Delfin|delfinlar]] („Delphinus“ [[Lotin tili|lotincha]] „delfin“ degan maʼnoni anglatadi) saqlab qolgan.{{clear left}}

== Yana qarang ==

* 41 Lyncis b
* Xi Aquilae b

== Maʼlumotnomalar ==
{{Manbalar|refs=<ref name="Sato2008">{{cite journal | title=Planetary Companions around Three Intermediate-Mass G and K Giants: 18 Delphini, ξ Aquilae and HD 81688 | url=https://academic.oup.com/pasj/article/60/3/539/1508408 | last1=Sato | first1=Bun'ei | last2=Izumiura | first2=Hideyuki | last3=Toyota | first3=Eri | last4=Kambe | first4=Eiji | last5=Ikoma | first5=Masahiro | last6=Omiya | first6=Masashi | last7=Masuda | first7=Seiji | last8=Takeda | first8=Yoichi | last9=Murata | first9=Daisuke | last10=Itoh | first10=Yoichi | last11=Ando | first11=Hiroyasu | last12=Yoshida | first12=Michitoshi | last13=Kokubo | first13=Eiichiro | last14=Ida | first14=Shigeru | display-authors=1 | journal=Publications of the Astronomical Society of Japan | volume=60 | issue=3 | pages=539–550 | year=2008 | arxiv=0802.2590 | bibcode=2008PASJ...60..539S | doi=10.1093/pasj/60.3.539}}</ref>}}

* {{Veb manbasi|url=http://exoplanet.eu/planet.php?p1=18+Del&p2=b|sarlavha=Notes for Planet 18 Del b|muallif=Jean Schneider|sana=2011|nashriyot=[[Extrasolar Planets Encyclopaedia]]|kirish sanasi=30 September 2011}}

== Havolalar ==

* {{Citation|display-authors=1|last=da Silva|first1=L.|last2=Girardi|first2=L.|last3=Pasquini|first3=L.|last4=Setiawan|first4=J.|last5=von der Lühe|first5=O.|last6=de Medeiros|first6=J. R.|last7=Hatzes|first7=A.|last8=Döllinger|first8=M. P.|last9=Weiss|first9=A.|title=Basic physical parameters of a selected sample of evolved stars|journal=Astronomy and Astrophysics|volume=458|issue=2|pages=609–623|doi=10.1051/0004-6361:20065105|bibcode=2006A&A...458..609D|arxiv=astro-ph/0608160|date=November 2006}} — lists data about the star.
[[Turkum:Ekzosayyoralarni nomlash]]
[[Turkum:Ekzosayyora]]