grahon ka prabhav jatak ke upar spasht rup se dekha ja sakta hai. chahe vah dasha ke rup men ho ya lagn ya rashi svami par adharit ho iske atirikt jatak ka svabhav karya karne ki shaili, jatak ki bhautik sanrchna, vaivahik sukh, karya kshetra in sabhi kshetron men grahon ka prabhav hota hai. sabhi grah surya ke charon or chakkar lagate hain aur surya se inke kaksha nimn prakar hai:
budh, shukra, prithvi, mangal, guru, shani, yurenas, nepchyun, pluto
khagol vigyan men surya ko sthir hone ke karan grah ki jagah tara mana jata hai. jabki jyotish men prithvi ko surya ke sapeksh sthir mante hain aur prithvi ko sthir mante hain. jabki khagol vigyan men iska viprit hai. aisa islie hai kyonki jyotish ka adhyayan sirf manushya varg par kiya jata hai aur manushya sirf prithvi par rahta hai.
chandrama prithvi ke charon or chakkar katta hai islie yah manushya par sabse adhik prabhav dalta hai aur man ka karak hota hai.
rahu aur ketu chaya grah hote hain joki surya aur chandrama ke marg ke katan bindu par sthit hote hain.