{{Short description|Family of asteroids}} The '''Phocaea family''' ({{IPAc-en|f|oʊ|ˈ|s|iː|ə}} {{Respell|foh|SEE|ə}}; adj. ''Phocaean''; {{small|FIN: 701}}) is a collisional family of asteroids located between 2.25 and 2.5&nbsp;AU in the inner region of the asteroid belt. Phocaea asteroids are of stony S-type composition and have orbits with eccentricities greater than 0.1 and inclinations between 18 and 32°.<ref name="EasySky" /> The family has an estimated age of 2.2 billion years and derives its name from its most massive member, 25&nbsp;Phocaea which is about 75&nbsp;km in diameter. Several Phocaean asteroids are also Mars-crossers.<ref name="Carruba-2009" /><ref name="Nesvorny-2014" />{{rp|23}}

== Phocaea family region ==

The Phocaea family region contains other collisional families such as the recently identified carbonaceous, '''Tamara family''',<ref name="Novakovic-2017" /> named after its potentially largest member 326&nbsp;Tamara. The family has an estimated age of 264 million years. Several clumps around 290&nbsp;Bruna (Bruna family), 1192&nbsp;Prisma and 6246 Komurotoru, as well as {{LoMP|17628|{{mp|(17628) 1996 FB|5}}}}, {{LoMP|19536|{{mp|(19536) 1999 JM|4}}}} and {{mpl|(26142) 1994 PL|1}} have also been detected.<ref name="Carruba-2009" />{{rp|1514,1515}}

== Members == {| class="wikitable" ! Name !! ''a'' !! ''e'' !! ''i'' |- | 25 Phocaea || 2.400 || 0.255 || 21.584° |- | 1090 Sumida || 2.360 || 0.220 || 21.505° |- | 4388 Jürgenstock || 2.339 || 0.279 || 24.588° |}

== References == {{Reflist|refs=

<ref name="EasySky">{{Cite web |title = The different asteroid groups and families |publisher = EasySky |url = http://www.easysky.de/eng/screenshots/index.htm |access-date= 3 May 2018}}</ref>

<ref name="Carruba-2009">{{Cite journal |last1 = Carruba |first1 = V. |date = September 2009 |title = An analysis of the region of the Phocaea dynamical family |url = https://repositorio.unesp.br/bitstream/handle/11449/9436/WOS000269731500040.pdf |journal = Monthly Notices of the Royal Astronomical Society |volume = 398 |issue = 3 |pages = 1512–1526 |bibcode = 2009MNRAS.398.1512C |doi = 10.1111/j.1365-2966.2009.15220.x |access-date= 3 May 2018|doi-access= free |hdl = 11449/9436 }}</ref>

<ref name="Nesvorny-2014">{{Cite book |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |chapter = Identification and Dynamical Properties of Asteroid Families |title = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |isbn = 9780816532131 }}</ref>

<ref name="Novakovic-2017">{{Cite journal |first1 = Bojan |last1 = Novakovic |first2 = Georgios |last2 = Tsirvoulis |first3 = Mikael |last3 = Granvik |first4 = Ana |last4 = Todovic |date = June 2017 |title = A Dark Asteroid Family in the Phocaea Region |journal = The Astronomical Journal |volume = 153 |issue = 6 |page = 8 |bibcode = 2017AJ....153..266N |doi = 10.3847/1538-3881/aa6ea8 |arxiv = 1704.06088 |doi-access = free }}</ref>

}} <!-- end of reflist -->

{{Small Solar System bodies}}

* Category:Asteroid groups and families