[[Coadan:1e7m comparison Uranus Neptune Sirius B Earth Venus.png|300px|right|thumb|Y baare-linney: [[Uraanus]], [[Neptioon]]; y mean-linney: [[Yn Dowan|y Dowan]], y [[rollage chrivassanagh vane]] [[Sirius B]], as [[Badlag]] (ayns scaailey); y bun-linney: jeeagh er y choadan çheu heese]]
[[Coadan:1e6m comparison Mars Mercury Moon Pluto Haumea - no transparency.png|300px|right|thumb|Y baare-linney: [[Mart (planaid)|Mart]] as [[Curain]]; y bun-linney: [[yn Eayst]], ny planaidyn crivassanagh [[Pluto]] as [[Haumea]] (ayns scaailey)]]
Ta '''planaid''' (veih πλανήτης ny Greagish, cummey elley jeh'n fockle πλάνης, "wagaantagh") çheet er corpane[[ niauaghniauag]]h ta [[cruinlagh]]ey [[rollage]] ny remlad rollageagh. Ta tree conaantyn ayn son yn ennymen[[nym planaid]] dy chur er corpanec[[orpane niauaghni]]auagh - dy ve cha mooar as dy ve runtit liorish yn [[ym-hayrn]] hene echey, dy ve ro-veg dys [[co-haaghey çhiass-heshveanagh]] dy hoshiaghey, as dy vel yn ard nabooagh echey glennit jeh [[mynphlanaidagh|mynphlanaidee]].
Dy cadjin, ta planaidynpl[[anaidy]]n rheynnitrhe[[ynni]][[t aynsayn]][[s daad]][[aa arda]][[rd-phossanphoss]][[an: ]][[foawr gas|foawir ghas]] ta nyn blanaidyn mooarey lesh glooaght injil, as [[planaid ooiragh|planaidyn ooiragh]] creggagh. Rere keeayllaght yn [[Unnaneys Rollageydagh Eddyrashoonagh|URE]], ta hoght planaidyn ayns [[Corys ny Greiney]]. T'ad ayns oardagh foddeeaght veih'n [[Yn Ghrian|Ghrian]], ny kiare planaidyn ooiragh '''[[Curain]]''', '''[[Badlag]]''', '''[[Yn Dowan|yn Dowan]]''', as '''[[Mart (planaid)|Mart]]''', as ny kiare foawir ghas '''[[Iupiter]]''', '''[[Sarn (planaid)|Sarn]]''', '''[[Uraanus]]''', as '''[[Neptioon]]'''. Myrane lesh ny hoght planaidyn, ta queig [[planaidyn crivassanagh]] er y chooid sloo ayns Corys ny Greiney, as kiedyn dy thousaneyn dy [[Corpaneyn beggey ayns Corys ny Greiney|chorpaneyn beggey]]. Magh ass Curain as Badlag, ta eaystyn, ny fo-phlannadyn cruinlaghey dagh planaid ayns Corys ny Greiney.
