Raat ka Aasmaan Dekhna

Class 6 Science · Chapter 12: Dharti ke Paar · NCERT Curiosity section 12.2

Seekho

Kuch ghante aasmaan dekho to taare dheere-dheere poorv se paschim chalte lagte hain, jaise din mein Suraj. Wo asal mein nahi chalte: Dharti ghoom rahi hai, humein saath ghumaati hai.

Ek taara uttari aasmaan mein tika lagta hai: Dhruva taara (Pole Star). Ye lagbhag theek Dharti ke Uttari Dhruv ke upar hai, isliye poora aasmaan iske chaaron or ghoomta lagta hai. Iski taraf mooh matlab uttar ki taraf mooh!

Kaise dhoondhein: Saptarishi dhoondo. Iski katori ke baahari sire ke do taare pointer stars kehlaate hain. Unke beech se rekha socho aur unke gap se lagbhag paanch guna aage badhao: Dhruva taara mil jaayega.

Achhe se aasmaan dekhne ke liye shehar ki roshni se door andheri jagah jaao, aankhon ko 15 minute andhere ki aadat daalo, aur aasaan star map use karo. Bhaarat mein Ladakh ke Hanle mein Dark Sky Reserve hai, jahan aasmaan ko light pollution se bachaaya jaata hai.

Explore: Dhruva taara dhoondo.

1. Saptarishi banao aur pointer rekha ko Dhruva taare (upar daayein akela taara) tak badhao.

Yaad rakho

• Dharti ghoomne ki wajah se taare poorv se paschim chalte lagte hain.
• Dhruva taara uttar mein rehta hai; Saptarishi ke pointer stars se dhoondo.

Quick check

Dhruva taara yaatriyon ki madad kyun karta hai?

1. Uttar mein rehta hai aur mushkil se hilta hai
2. Sabse chamkeela taara hai
3. Paschim mein ugta hai
4. Wo Chaand hai

Socho

Agar tum Uttari Dhruv par khade ho, to Dhruva taara aasmaan mein kahan hoga?

Practice

Teen levels (easy, medium, hard) ke naye sawaalon se practice karo, kuch hands-on, hints aur hal ke saath. Topic poora karne ke liye pichhle 5 mein se 4 sahi karo.