The Jupiter is most massive of all the planets. It is larger than all other planets put together. Its distance from the Sun is 76, 97, 73, 940 kilometers, sidereal period 11.86 earth years. The maximal radius of Jupiter is 71350 kilometers (11.2 times bigger than the one of Earth) and minimal radius is 66600 kilometers (10.4 times bigger than the one of Earth). Also it is 317.8 times heavier than Earth. It rotates on its own axis in 9 hours 55 minutes, having 12 satellites. The 4 main satellites are known as Europa, Ganymede and Callisto. It is next to Sun in size and orb and next to the Venus in brightness.

Guru (Jupiter) is a planet of expansion. Sometimes it is also called Deva Guru. Guru is considered to be a teacher who removes the ignorance and darkness and offers wisdom by throwing light. In vedic tradition it rules “Sattva Guna”, which is the best Guna among others, being responsible for harmony, piece and comfortable state of mind. It rules over man’s worldly possessions and fortunes and hence is called the Giver or Ruler of money. Guru represents social justice, religion and sincerity. In ayurvedic practice some operations or administering of some medicine the physicians use to do in the hora of Guru.

Guru is fiery, noble, benevolent, fruitful, masculine, jovial, buoyant. Guru is the lord of North-East direction and governs Hemanta Ritu (December-January). Its color is golden, purple or violet and rules over the metals tin, gold, topaz and platinum. Sweet and fragrant are the flowers of Guru. It is the lord of finance and children. It governs education, happiness, health, love and respect towards elders and preceptors, good morals and conduct, wealth, respect, reputation and charity etc.

Guru gives the native golden complexion, brown eyes and hair. People that are born under the strong influence of Guru have good growth in youth, have muscular body due to outdoor games and become so stout that they must be respected for their growth. Such people always get the seats vacated for them even in crowd. Native has corpulent and tall body and is wise and learned. He has loud and heavy voice. Parts of the body ruled by Guru are liver, tumors, circulation of blood in arteries, fat in the body,  adipose tissue, morbid growths, pleura of lungs, kidney, thigh, feet, right ear.

When Guru is afflicted, it makes native extremist, having extravagant ideas, careless, over optimistic, gambler, poor, unpopular, lavish. It gives false hopes, failure in speculations, worry through children, loss by relying on others, misjudgment, miscalculation etc.

When Guru is beneficial, it gives good health and longevity. Native is jovial, hopeful, buoyant, humane, and of broad-minded nature. It bestows worldly wisdom, good fortune and dignity, social and moral success, prudence, progress and much expansion in all efforts. Rapid recoveries even from severe disease will take place if Guru is beneficial in one's horoscope. Native thinks properly, does his work ably and judges properly. Native uses fair means to earn money and never gets benefited by loss of others.

Diseases
The diseases indicated by Guru are blood poisoning, liver complaints, flatulence, dyspepsia, hernia, skin disease, catarrh, dropsy, mucus in urine, abscesses, carbuncles, diabetes, eczema, vertigo etc.

Products
The products represented by Guru are all fat containing food products like butter, ghee etc, sweet flavored eatables like oranges, banana etc, big trees like peepal tree, rubber, yellow colored flowers and vegetables, oak, elm, birch, figs, asparagus, beet, pinks, red roses, dog grass, apricots, gram, pulse etc.

Animals
Guru represents animals like horse, ox, elephant, stag, and domestic animals. It also represents eagle, peacock, pheasant, whale, dolphin etc.

Places
Guru represents places like courts, pompous buildings, places where coronation and religious functions are conducted, temples, colleges, schools, legislative  assembly etc.

Precious metals & Gems
Precious metals and gems represented by Guru are gold, platinum, topaz and yellow sapphire. Native whose Lagnesh (lord of ascendant) is Guru can start wearing the ring of yellow sapphire in gold on index finger during Nakshatras (the constellation - Punarvasu, Vishakha, Poorva Bhadrapada) of Guru.