{{Short description|Extrasolar planet in the constellation Coma Berenices}} {{Infobox planet | name = HD 108874 b <!-- DISCOVERY --> | discoverer = [[R. Paul Butler|Butler]] et al.<ref name="Butler2003"/> | discovery_site = {{flag|United States}} | discovered = June 30, 2003 | discovery_method = [[radial velocity]] <!-- DESIGNATIONS --> <!-- ORBITAL --> | apsis = astron | semimajor = {{convert|1.053|±|0.061|AU|km|abbr=on}}<ref name="Wright2009"/> | eccentricity = 0.128 ± 0.022<ref name="Wright2009"/> | period = 394.48 ± 0.60<ref name="Wright2009"/> [[day|d]] | time_periastron = 2,454,045 ± 49<ref name="Wright2009"/> | arg_peri = 219.4 ± 9.4<ref name="Wright2009"/> | semi-amplitude = 37.3 ± 1.1<ref name="Wright2009"/> | star = [[HD 108874]] <!-- PHYS CHARS --> | mass = >1.34 ± 0.11<ref name="Wright2009"/> {{Jupiter mass|link=y}} <!-- ATMOSPHERE --> <!-- NOTES --> }} '''HD 108874 b''' is a [[gas giant]] announced in 2003.<ref name="Butler2003"/> The orbit lies in the star's [[habitable zone]].<ref>{{cite journal|bibcode=2007A&A...462.1165S|title=Trojan planets in HD 108874?|author1=Schwarz, R. |author2=Dvorak, R. |author3=Pilat Lohinger, E. |author4=Süli, Á. |author5=Érdi, B. |journal=[[Astronomy and Astrophysics]]|volume=462|issue=3|pages=1165–1170|date=2007|doi=10.1051/0004-6361:20066284|doi-access=free}}</ref> It is expected that any [[extrasolar moon|moons]] orbiting this planet are enriched in [[carbon]], and are thus quite different from the [[silicate]]-rich bodies in the [[Solar System]].<ref>{{Cite journal | arxiv=1001.3901 | author1=Bond | author2=Lauretta | author3=O'Brien | title=The Diversity of Extrasolar Terrestrial Planets | date=2010 | doi=10.1017/S1743921310001079 | volume=5 | journal=Proceedings of the International Astronomical Union | page=399| bibcode=2010IAUS..265..399B | s2cid=118569117 }}</ref> The planet is possibly in a 4 : 1 [[orbital resonance]] with [[HD 108874 c]].<ref name="Vogt2005"/>
==Discovery== The [[jovian planet]] HD 108874 b was discovered by the US-based team led by [[R. Paul Butler|Paul Butler]], [[Geoffrey Marcy]], [[Steven Vogt]], and [[Debra Fischer]]. A total of 20 [[radial velocity]] observations, obtained at the [[W. M. Keck Observatory]] in [[Hawaii]] between 1999 and 2002, were used to make the discovery.<ref name="Butler2003"/>
==See also== * [[HD 28185 b]]
==References== {{Reflist|refs=
<ref name="Butler2003">{{cite journal | title=Seven New Keck Planets Orbiting G and K Dwarfs | last1=Butler | first1=R. Paul | last2=Marcy | first2=Geoffrey W. | last3=Vogt | first3=Steven S. | last4=Fischer | first4=Debra A. | last5=Henry | first5=Gregory W. | last6=Laughlin | first6=Gregory | last7=Wright | first7=Jason T. | display-authors=1 | journal=The Astrophysical Journal | volume=582 | issue=1 | pages=455–466 | year=2003 | bibcode=2003ApJ...582..455B | doi=10.1086/344570 | citeseerx=10.1.1.7.6988 | s2cid=17608922 }}</ref>
<ref name="Vogt2005">{{cite journal | title=Five New Multicomponent Planetary Systems | last1=Vogt | first1=Steven S. | last2=Butler | first2=R. Paul | last3=Marcy | first3=Geoffrey W. | last4=Fischer | first4=Debra A. | last5=Henry | first5=Gregory W. | last6=Laughlin | first6=Greg | last7=Wright | first7=Jason T. | last8=Johnson | first8=John A. | display-authors=1 | journal=The Astrophysical Journal | volume=632 | issue=1 | pages=638–658 | year=2005 | bibcode=2005ApJ...632..638V | doi=10.1086/432901 | s2cid=16509245 | url=https://authors.library.caltech.edu/36250/ | doi-access=free }}</ref>
<ref name="Wright2009">{{cite journal | title=Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems | last1=Wright | first1=J. T. | last2=Upadhyay | first2=S. | last3=Marcy | first3=G. W. | last4=Fischer | first4=D. A. | last5=Ford | first5=Eric B. | last6=Johnson | first6=John Asher | display-authors=1 | journal=The Astrophysical Journal | volume=693 | issue=2| pages=1084–1099 | year=2009 | arxiv=0812.1582 | bibcode=2009ApJ...693.1084W | doi=10.1088/0004-637X/693/2/1084 | s2cid=18169921 }}</ref>
}}
==External links== * {{cite encyclopedia |url=https://exoplanet.eu/catalog/hd_108874_b--111/ |encyclopedia=[[Extrasolar Planets Encyclopaedia]] |title=HD 108874 b }} {{Sky|12|30|26.8829|+|22|52|47.383|223.4}}{{Coma Berenices}}
{{DEFAULTSORT:HD 108874 b}} [[Category:Coma Berenices]] [[Category:Exoplanets discovered in 2003]] [[Category:Giant planets]] [[Category:Giant planets in the habitable zone]] [[Category:Exoplanets detected by radial velocity]]
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