विषुवत रेखा
thumb|200px|vishuvat rekha ki sthiti vishuvat rekha ya 'bhoomadhy rekha' prithvi ki satah par uttari dhruv evan dakshini dhruv se saman doori par sthit ek kalpanik rekha hai. yah prithvi ko do golarddhoan, uttari aur dakshini golarddh mean vibhajit karati hai.
- doosare shabdoan mean prithvi ke keandr se sarvadhik doorasth bhoomadhyarekhiy ubhar par sthit binduoan ko milate hue glob par pashchim se poorv ki or khianchi gee kalpanik rekha ko 'bhoomadhy' ya 'vishuvat rekha' kahate haian.
- is rekha par pray: varshabhar din aur rat ki avadhi barabar hoti hai.
- yahi karan hai ki ise vishuvat rekha ya bhoomadhy rekha kaha jata hai.
- any grahoan ki vishuvat rekha ko bhi saman roop se paribhashit kiya gaya hai.
- vishuvat rekha ke uttari or 23½° mean kark rekha hai v dakshini or 23½° mean makar rekha hai.
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tika tippani aur sandarbh
sanbandhit lekh
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varnamala kramanusar lekh khoj
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