HD 209458 b

She planaid neughrianagh eh HD 209458 b. T'eh cruinlaghey y chosoylaght ghreiney HD 209458 ayns co-hollys rollageagh y Chabbyl Etlee, mysh 157 sollys-vleeantyn (48 parsecyn) voish Corys ny Greiney. Ta craue raadeeoil cruinlagh y phlanaid 0.047 AU (7.0 millioonyn km; 4.4 millioonyn dy veeilaghyn), ny mysh un hoghtoo jeh craue raadeeoil cruinlagh Churain (0.39 AU (36 millioonyn mi; 58 millioonyn km)). Ta craue raadeeoil veg y chruinlagh shoh jannoo blein ta 3.5 laaghyn dowanagh er lhiurid as tempreilys eaghtyragh ta oolit er 1,000 °C (1,800 °F; 1,300 K). Rere glout, t'eh mysh 220 keayrtyn ny smoo na glout y Dowan (0.69 gloutyn Jupiter) as ta e howse-lhieenee mysh 2.5 cheayrt ny smoo na Jupiter. Ta'n glout as y towse-lhieenee mooar taishbyney dy nee foawr gas eh HD 209458 b.

Ta HD 209458 b er ny gheddyn ram claghyn meeiley 'sy ronsaghey magh neughrianagh. She eshyn va'n chied phlanaid ayns ram ronnaghyn:
 planaid neughrianagh tessenagh
 y chied phlanaid ve feddynit liorish ny smoo na un aght
 planaid neughrianagh as fys ain dy vel aeraght echey
 planaid neughrianagh ren shin fakin aeraght hiddragien gaalaghey
 planaid neughrianagh as aeraght echey lesh ny bunstooghyn ocsygien as carboan
 nane jeh'n chied daa phlanaid neughrianagh ve fakinit trooid spectroscoipaght
 y chied oawr gas neughrianagh as towshan jeant er e sterrym mooar
 y chied phlanaid neughrianagh ren shin towshan e vieauid chruinlee, reaghey e ghlout dy jeeragh

Bunnit er obbraghey ny kiaddaghyn sheiltynagh s'noaee, roish Averil 2007, t'eh oolit dy nee HD 209458 b y chied phlanaid neughrianagh ve feddynit magh as gaal ushtey 'syn aeraght echey.

Ayns Jerrey Souree 2014, ren NASA fogrey magh dy ren ad feddyn magh aeraghtyn çhirrym er HD 209458 b as er daa phlanaid neughrianagh elley (HD 189733 b as WASP-12b) ta cruinlaghey rollageyn gollrish y Ghrian.

Va'n far-ennym "Osiris" currit da HD 209458 b ass y jee Egyptagh. Ren yn Unnaneys Rollageydagh Eddyrashoonagh goaill rish yn 'ar-ennym shen, agh cha nel eh er ny ve doltit foast myr ennym kiart oikoil.

Imraaghyn

Kianglaghyn magh


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 AAVSO Variable Star Of The Season. Fall 2004: The Transiting Exoplanets HD 209458 and TrES-1 

Ronney:Planaidyn neughrianagh feddynit magh 'sy vlein 1999
Ronney:Planaidyn foawragh
Ronney:Jupiteryn çheh
Ronney:Yn Cabbyl Etlee (co-hollys rollageagh)
Ronney:Planaidyn neughrianagh tessenagh
Ronney:Planaidyn neughrianagh feddynit magh lesh bieauid raadeeoil
Ronney:Planaidyn neughrianagh as enmyn kiart oc