In Vedic Astrology, Capricorn in considered as the tenth zodiac sign among the twelve zodiac signs which are taken into consideration for making astrological calculations on the basis of Vedic Astrology. The last three padas of the Nakshatra Uttarashada, all four padas of the Nakshatra Shravana and the first two padas of the Nakshatra Dhanistha are ruled by this sign called Capricorn.
Capricorn is considered as an earthy sign in Vedic Astrology and it is ruled by Saturn. This sign renders certain specific qualities to many planets when they are placed in it and probably due to this reason Mars and Jupiter see their highest and lowest strengths when placed in this sign. Mars gets debilitated when placed in this sign called Capricorn which means that out of all the twelve signs, Mars is considered as the strongest when placed in Capricorn whereas Jupiter on the other hand gets debilitated when placed in this sign which means that out of all the twelve signs, Jupiter is considered as the weakest when placed in this sign. This is probably due to the fact that the general nature of this sign and its lord Saturn is very much different from the general nature of Jupiter and therefore Jupiter does not feel comfortable when placed in this sign as this sign tries to impart certain qualities to Jupiter which are quite opposite to the characteristic qualities of Jupiter. So the natives with Jupiter placed in Capricorn in their horoscope are likely to suffer on front of the significances ruled by Jupiter, generally and specifically in their horoscopes.
The placement of some strong positive planets like, Saturn, Mercury, Rahu, Mars and Venus in this sign can bless the native with very good materialistic results and can make the native a very good diplomat, communicator and manipulator and can bless the native with very good materialistic gains by virtue of these qualities and some other good qualities rendered by Capricorn to the planets placed in it. The placement of a combination of strong positive planets like Saturn, Mercury and Rahu in this sign in a horoscope can uplift the native to great achievements and social status by virtue of his communication skills, diplomatic nature and the ability to plan and execute things in a very good manner. On the other hand the placement of one or more negative planets in this sign can make the native suffer from various kinds of problems including health problems, diseases and misfortunes on various fronts of his life depending upon the planets afflicting this sign in a horoscope and certain other factors influencing the horoscope.
Capricorn rules the knees and the parts of body in that region as well as bones and joints in the body. A strongly placed Capricorn in a horoscope will ensure good working of the parts of the body ruled by it whereas serious afflictions to Capricorn in a horoscope by virtue of placement of one or more negative planets in it or by afflictions of one or more negative planets to this sign can make the native suffer from disease like, joint pains, arthritis, problems and diseases related to bones of the body and some problems related to skin. Apart from these diseases, the weakness of this sign can bring many kinds of trouble for the native depending upon the other important aspects of his horoscope.