Din aur raat ki lambai braber….. Aj shaam say khazan shoro ho jaye gi
Din aur raat ki lambai braber….. Aj shaam say khazan shoro ho jaye gi, aaj yani 22 September 2020 ke roz nah sirf din aur raat ki lambai barabar hai balkay Pakistani mayaari waqt ke mutabiq shaam 6 baj kar 30 minute par zameen ke shumali nisf kere mein khizaa ka aaghaz bhi hojaye ga. aisa har saal hota hai aur yeh mauqa’ ‘ aitdaal khareefi ‘ ‘ ( autumnal equinox ) kehlata hai. Albata theek isi waqt zameen ke janoobi nisf kere mein bahhar ki ibtida hojaye gi .
yaad rahay ke hamara sayarah zameen –apne mehwar par 23. 45 degree jhuka hwa hai jis ke baais yahan poooray saal mein chaar mausam yani sardi, garmi, khizaa aur bahhar hotay hain. isi jhukao ki wajah se zameen ke shumali nisf kere mein jo mausam hota hai, is ka bilkul ulat mausam janoobi nisf kere mein hota hai .
falkiat ( astronomi ) ke nuqta nigah se baat karen to har saal mousamoo ki tabdeeli bhi chaar marhalon mein hoti hai :
Pehla : aitdaal rabeei( vernal equinox ) jisay falkiati aitbaar se’ ‘ mosam e bahhar ka aaghaz’ ‘ bhi kaha jata hai. is roz raat aur din ki lambai barabar hoti hai. is saal yeh mauqa Pakistani waqt ke mutabiq 20 March ko subah 8 baj kar 49 minute par aaya tha .
Dosra : inqilabay garma ( summer solstice ) jisay zameen par mosam e bahhar ka nuqta aaghaz qarar diya jata hai. yeh saal ka sab se taweel din aur mukhtasir tareen raat hoti hai. yeh mauqa is saal 21 June ki subah 4 bajkar 43 minute par aaya tha .
Teesra : aitdaal khareefi ( autumnal equinox ) yani’ ‘ khizaa shuru honay ka mauqa’ ‘ jis ki tafseelaat is khabar ki ibtida mein bayan ki gayi hain .
Choutha : inqilabay sarma ( winter solstice ) ke jab saal ki sab se lambi raat aur sab se chhota din hota hai. falkiat mein yahi waqt mosam e sarma ka aaghaz bhi qarar diya jata hai. is saal ka inqilabay sarma Pakistani mayaari waqt ke hisaab se 21 decemeber ki sah pehar 3 baj kar 1 minute par waqay hoga .
qaryin ki mazeed dilchaspi ke liye batatay chalein ke’ ‘ aitdaal’ ‘ woh mawaqay hotay hain jab Sooraj aasmani khtِ istewa ( celestial equator ) se guzarta hai jabkay’ ‘ inqilab’ ‘ woh mawaqay hain ke jab Sooraj –apne salana rastay ( triqِ Shams ) par harkat karte douran aasmani khtِ istewa se sab se ziyada doori par chala jata hai .
jaisa ke shuru mein bataya ja chuka hai, zameen ke shumali nisf kere mein jo mausam hota hai, janoobi nisf kere mein is ka ulat mausam hota hai. ( yahi wajah hai ke January ke mahinay mein Pakistan samait deegar shumali mumalik mein sardi par rahi hoti hai to Australia aur newzea land waghera mein shadeed garmi hoti hai. )
isi baat ke pishِ nazar ab inhen bal tarteeb’ ‘ March ka aitdaal, June ka inqilab, September ka aitdaal aur decemeber ka inqilab’ ‘ kaha jane laga hai .
