Every Planet transit into a sign for a particular period. We divide a sign into 8 equal orbit. Each orbit is known as Kaksha. So length of each Kaksha will be 3°45′. Every Kaksha is ruled by 8 diffrent planet. The sequence of Kaksha will be Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon and lagan. So in any sign sequence of Kaksha will be
0 to 3°45′ Saturn Kaksha.
3°45′ to 7° 30′ Juptiter Kaksha.
7° 30′ to 11° 15′ Mars Kaksha.
11° 15′ to 15° Sun Kaksha.
15° to 18° 45′ Venus Kaksha.
18° 45′ to 22° 30′ Mercury Kaksha.
22° 30′ to 26° 15′ Moon kaksha.
26° 15′ to 30° Lagan Kaksha.
Every planet during transit first enter Saturn Kaksha then entre Jupiter Kaksha and last lagan Kaksha. Means any Planet in any sign transit every Kaksha one by one.
General use of Kaksha
For example in any chart Juptiter in 4 Rekha in Aries sign. And those rekha is given by Moon, Mars, Sun and Saturn. Then when Juptiter transit to Aries sign then it will be giving good results when Juptiter transit to Kaksha of Moon(22°30′ to 26° 15′), Mars (7° 30′ to 11° 15′), Sun (11° 15′ to 15°), and Saturn (0° to 3° 45′).
Means when Planet transit to a Kaksha where it has rekha gives good results.
When Planet transit to a Kaksha where it has Bindu then it gives unfavorable results.
Transit Time for Planet
We know that
Sun transit to a sign in 30 days.
Moon transit to a sign in 2 days 6 hours.
Mars transit to a sign in 45 days arround.
Mercury transit over a sign in 21 days arround.
Venus transit over a sign in 28 days arround.
Jupiter transit over a sign in 360 days( 1 year ).
Saturn transit over a sign in 600 days ( 2.5 year )
Rahu and ketu transit over a sign in 540 days (1.5 year).
If you look over transit time then you may find sequence of Kaksha is according to transit time. Saturn take long time so his Kaksha comes first. Lagan takes least time so his Kaksha comes last.
Transit Time of Planet From A Kaksha
Sun – 3 days 18 hour
Moon – 6. 75 hour
Mars – 5 days 15 hours around
Mercury – 3 days 18 hour around
Venus – 3 days 18 hour
Jupiter – 56 days
Saturn – 3 month 22 days.
not lucid what do you mean by rekha