hamare is brahmand men lagabhag char hajar karor tare hain aur is prakar ke brahmand ek hajar karor se adhik hain. hamara yah brahmand hi itna vishal hai ki yadi surya ko ek sui ki nonk ke barabar man liya jae to sabse najdiki tara lagabhag 10 mil ki duri par hoga. hamare surya ki paridhi men lagabhag 30 lakh prithviyan sama sakti hain. itne vishal antriksh men vicharan kar rahe hamare grahon ke bhi adbhut tatha rochak tathya hain jinhen apke samaksh prastut kar rahe hain.
- antriksh men taron ki sankhya sare samudron ke kinaron par balu ke kanon se adhik hai.
- yadi prakash ki gati se chala jae to brahmand ko par karne men ek lakh varsh lagenge.
- surya bhi apni dhuri par ek mahine men ek chakkar lagata hai aur is brahmand ka chakkar lagabhag 26,000 varshon men pura karta hai.
- yadi ham 100 kimi prati ghanta ki gati se chaibis ghante kar chalaen to surya par pahunchne men lagabhag 171 varsh lagenge.
- surya ki satah ka tapman lagabhag 60000 selsiyas hota hai jis par lagabhag sabhi dhatuen vashp banakar ur jati hain.
- budh surya ka chakkar sabse tivra gati se lagata hai. keval 88 din men yah surya ki parikrama kar leta hai.
- shukra saurmandal ka sarvadhik garm grah hai aur iska tapman 4600 selsiyas tak pahunch jata hai. iska vajan aur akar lagabhag prithvi ke saman hai.
- mangal grah ka ek din ka man prithvi ke ek din ke man se keval kuch minat 24 ghante 37 minat 23 sekend) bara hota hai.
- yadi 300 kimi ki raftar se chand ki or chalen to ham lagabhag 100 din men chand par pahanuch jaenge.
- chandra prithvi se 3 semi prati varsh dur ho raha hai.
- chandra ka keval ek hissa prithvi se dikhai deta hai kyonki chandra apne kaksh par aur apni dhuri par ghumne men barabar samay leta hai.
- prithvi apni dhuri par lagabhag 1600 kimi prati ghante ki raftar se ghum rahi hai aur 1 lakh kimi prati ghante ki raftar se bhi adhik gati se surya ke charon or ghum rahi hai.
- yadi prithvi ko seb ki upma di jae to prithvi ke upar vayumandal keval uske chilke ke barabar hai.
- surya ki garmi se prithvi par prati varsh ek lakh ghan mil pani vashp banta hai jiska vajan lagabhag 4 karor (4 × 1014) tan hota hai.
- prithvi ki satah ka 71 pratishat bhag pani se dhaka hua hai aur is pani ka 97 pratishat ansh khara tatha keval 3 pratishat mitha hai.
- hamari prithvi sardiyon men surya ke adhik pas hoti hai. prithvi sardiyon men surya ke prati varsh 50 lakh kimi pas a jati hai aur garmiyon men utni hi dur chali jati hai.
- prithvi ka ghanatva 5.515 gram prati ghan senmi aur iska kul bhar 5.97 × 1024 arthat lagabhag 6 karor karor karor tan hai.
- prithvi par napa gaya nyunatam tapman -880 aur adhikatam 580 sen. hai.
- shani grah pani se halka hai aur brihaspati ka bhar sabhi grahon ke sammilat bhar se adhik hai.
- shani ka ghanatva keval .7 gram prati ghan senmi hai. lekin iska kul bhar prithvi ke kul bhar se 95 guna adhik hai. yah prithvi ki tulna men surya se lagabhag 50 guna adhik dur hai.
- brihaspati ki paridhi men 1300 se adhik prithviyan sama sakti hain. yah prithvi ki tulna men surya se 5 guna adhik dur hai. iska bhar prithvi ke bhar se 318 guna adhik hai.
- brihaspati ek bare vaikyum klinar ki tarah se kam karta hai jo prithvi ki taraf a rahe dhumketuon, ulkaon adi ko prithvi tak ane nahin deta hai. anyatha inke ane ki sanbhavna 10,000 guna adhik ho jati hai aur prithvi par jivan ka rah pana mushkil ho jata.
- pluto ko koi grah n man kar keval laghu tara (dvarf star) mana gaya hai.
- pluto nepyyun se dur hai lekin iske kaksh ke dirghavriÿaakar hone ke karan 1979 se 1999 tak nepchyun ki apeksha yah surya ke adhik pas raha.
uprokt tathya dikhate hain ki yah antriksh apar hai. ismen duri, akar v gati ki simaen bhi apar hain.