grahan

sooryagrahan ka ek drushya
soorya ke aage se gujrata hua budh grah, 10 May 2016

grahan ek khagoleeya avastha hai jismein koi khagoliya pind jaise grah ya upagrah kisi prakaash ke srot jaise soorya aur doosare khagoliya pind jaise pruthvi ke beech aa jaata hai jisse prakaash ka kuchh samay ke liye avarodh ho jaata hai.

inmein mukhya rup se pruthvi ke saath hone vaale grahanon mein nimnalikhit ullekhaneeya hain:

  • chandragrahan - is grahan mein chaaaind ya chandrama aur soorya ke beech pruthvi aa jaati hai. aisi sthiti mein chaaaind pruthavi ki chhaaya se hokar gujarata hai. aisa sirf poornima ke din sambhav hota hai.
  • sooryagrahan - is grahan mein chaaaind soorya aur pruthavi ek hi seedh mein hote hain aur chaaaind pruthavi aur soorya ke beech hone ki vajah se chaaaind ki chhaaya pruthavi par padti hai. aisa aksar amaavasya ke din hota hai.
  • poorn grahan tab hota hai jab khagoliya pind jaise pruthavi par prakaash poori tarah avaruddh ho jaaye.
  • aanshik grahan ki sthiti mein prakaash ka strot poori tarah avaruddh naheen hota

sandarbh