
9 see. ee. tii.

9 setty bhoomadhyarekhiya nakshatr mein ack taaraa haye. iska charr taaraa padnam setty haye, jabaki "9 setty" flamestead padnam haye. iska drishya parimaan 6.4 haye, joe usa seema seey cumm haye jise ack vishisht paryavekshak dwara nagna aankho seey dekhaa jaa sakata haye. (bortal paimaane key anusaar, kuchh paryavekshakon key liye ise graameen aasmaan key andhere seey dekhana sambhav haye.) parlax maap key aadhar parr, yeh taaraa soorya seey 69.6 prakaash varsh door haye.
yeh ack saur anuroop haye, jise "sakal gunon key saath jansankhya i bauna key roop mein paribhaashit kiya gayaa haye joe soorya seey bahut alag naheen haye. yeh ack jee-prakaar kaa mukhya anukram taaraa haye jisamen jee3 vee kaa taarakiya vargeekaran haye, jiska arth haye kii yeh apane mool mein hydrogen key helium mein sanlayan key madhyam seey oorjaa utpann curr rhaa haye. taaron kaa dravyamaan aur trijya soorya key samaan haye, halanki hydrogen aur helium key alawa anya tatvon kii prachurta lagbhag 50 pratishat adhik haye. yeh soorya seey bahut chhota haye, jisaki ayu anumaanit 85 karod varsh haye. taarakiya vayumandal kaa prabhaavi tapman lagbhag 5,807 key haye, joe ise jee-prakaar key taare kii peele rung kii chamak detaa haye.
1980 mein, yeh 7.655 dinon kii aavadhikta key saath ack charr taaraa paaya gayaa thaa, aur ise parivartaniya taaraa padnam diyaa gayaa thaa. prakaash mein iss bhinnata kii vyakhya prakashmandal mein starr spott gatividhi key ghoornan modulan kaa parinam honey key roop mein kii gaee thee, aur isaliye ise draknis charr dwara vargeekrit kiya gayaa haye. satah kii gatividhi kii taakat mein kaafee bhinnata haye-usa bindu taka jahaan yeh kuchh avalokan daud key dauran nishkriya dikhaai diyaa haye. satah key chumbakiya kshetra kii taakat 450 graam maapi gaee thee. iss taare key varnakram mein titanium oxide aur calcium hydride kii rekhaaen shamil hain, joe iss varg key ack taare key liye, starr spott gatividhi kaa aur pramaan haye. taramandal satah key anumaanit 3 pratishat hisse koo dhakte hain.
9 setty kii ack grah saathi yaa ack malabe kii disk key saboot key liye jaanch kii gaee haye, lekin 2015 taka koee bhee naheen milaa haye. taaron kii ayu aur antariksh key madhyam seey isaki gati seey pataa chalata haye kii yeh hydes taarakiya gatij samooh kaa sadasya haye.
9 setty seey 214 chaap sekand key koniya prithakkaran parr ack parimaan 12.57 optical saathi haye joe kii 294° (1999 taka) key sthiti konn key saath haye. jodee shaaririk roop seey judee naheen haye kyonki unaki uchit gatiyaan alag-alag hoti hain aur mund taaraa mein bahut chhota paralax hotaa haye.

