Hindu astrology in the context of "Makara (Hindu mythology)"

Astrology is a range of divinatory practices, recognized as pseudoscientific since the 18th century, that propose that information about human affairs and terrestrial events may be discerned by studying the apparent positions of celestial objects. Different cultures have employed forms of astrology since at least the 2nd millennium BCE, these practices having originated in calendrical systems used to predict seasonal shifts and to interpret celestial cycles as signs of divine communications.

Most, if not all, cultures have attached importance to what they observed in the sky, and some—such as the Hindus, Chinese, and the Maya—developed elaborate systems for predicting terrestrial events from celestial observations. Western astrology, one of the oldest astrological systems still in use, can trace its roots to 19th–17th century BCE Mesopotamia, from where it spread to Ancient Greece, Rome, the Islamic world, and eventually Central and Western Europe. Contemporary Western astrology is often associated with systems of horoscopes that purport to explain aspects of a person's personality and predict significant events in their lives based on the positions of celestial objects; the majority of professional astrologers rely on such systems.

The zodiac is a belt-shaped region of the sky that extends approximately 8° north and south celestial latitude of the ecliptic – the apparent path of the Sun across the celestial sphere over the course of the year. Within this zodiac belt appear the Moon and the brightest planets, along their orbital planes. The zodiac is divided along the ecliptic into 12 equal parts, called "signs", each occupying 30° of celestial longitude. These signs roughly correspond to the astronomical constellations with the following modern names: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces.

The signs have been used to determine the time of the year by identifying each sign with the days of the year the Sun is in the respective sign. In Western astrology, and formerly astronomy, the time of each sign is associated with different attributes. The zodiacal system and its angular measurement in 360 sexagesimal degree (°) originated with Babylonian astronomy during the 1st millennium BC, probably during the Achaemenid Empire. It was communicated into Greek astronomy by the 2nd century BC, as well as into developing the Hindu zodiac. Due to the precession of the equinoxes, the time of year that the Sun is in a given constellation has changed since Babylonian times, and the point of March equinox has moved from Aries into Pisces.

Kumbh Mela (Sanskrit: Kumbha Mēlā, pronounced [kʊˈmbʱᵊ melaː]; lit. 'festival of the Sacred Pitcher') is a Hindu pilgrimage, celebrated every four or twelve years, correlated with the partial or full revolution of Jupiter. These are held at four locations–Prayagraj, Haridwar, Nashik, and Ujjain, with varying time intervals. As per the Puranas, these sites are considered to have received the drops of the divine nectar (amrita) during the Samudra Manthana (churning of the ocean of milk). The Kumbh Mela lasts between one and three months, with the Amavasya day attracting the largest crowds. The festival attracts millions of people, with the largest gathering recorded at Prayag. About 660 million attended the Kumbh Mela in 2025, and 200 million in 2019, making it one of the largest peaceful gatherings in the world. It has been inscribed on the UNESCO Representative List of Intangible Cultural Heritage of Humanity.

The Kumbh Mela is observed cycle at each site approximately once every 12 years based on the Hindu luni-solar calendar and the relative positions of the Jupiter, the Sun, and the Moon. As per Hindu astrology, specific alignments of the Jupiter, the Sun, and the Moon only occur at the four Kumbh locations in a 12-year cycle. The Prayag and Haridwar festivals are held with a six year gap in between, and feature a Maha (major) and Ardha (half) Kumbh Melas. The Kumbh Melas at Ujjain and Nashik are observed in the same year or one year apart, typically about three years after the Prayag Kumbh Mela. The festival is held at the confluence of major rivers, and people take a ritual dip in the waters, believed to be a means of prāyaścitta (atonement) for the past mistakes, and cleansing of their sins. Various fairs, educational events, religious discourses, mass gatherings of monks, and entertainment are also conducted during the festivities.

Ujjain Simhastha is a Hindu religious mela held every 12 years in the Ujjain city of Madhya Pradesh, India. The name is also transliterated as Sinhastha or Singhastha. In Hindi, the fair is also called Simhasth or Sinhasth (due to schwa deletion). The name derives from the fact that it is held when the Jupiter is in Leo (Simha in Hindu astrology).

It is one of the four fairs traditionally recognized as Kumbha Melas, and is also known as Ujjain Kumbh Mela. According to Hindu mythology, Garuda dropped drops of amrita (the drink of immortality) at four places, while transporting it in a kumbha (pot). These four places, including Ujjain, are identified as the present-day sites of the Kumbh Mela."Kumbh" in its literal English translation means "Pot", which emerged from "Samudra Manthan"(Churning of the Ocean) between Gods and Demons. The term ‘Mela‘ signifies’Fair‘.

Nakshatra (Sanskrit: नक्षत्रम्, romanized: Nakṣatram) is the term for Lunar mansion in Hindu astrology and Buddhist astrology. A nakshatra is one of the 27 (sometimes also 28) sectors along the ecliptic. Their names are related to a prominent star or asterisms in or near the respective sectors. In essence (in Western astronomical terms), a nakshatra simply is a constellation. Every nakshatra is divided into four padas (lit. "steps").

The starting point for the nakshatras according to the Vedas is "Krittika" (it has been argued, because the Pleiades may have started the year at the time the Vedas were compiled, presumably at the vernal equinox), but, in more recent compilations, the start of the nakshatras list is the point on the ecliptic directly opposite the star Spica, called Chitrā in Sanskrit. This translates to Ashwinī, a part of the modern constellation of Aries. These compilations, therefore, may have been compiled during the centuries when the sun was passing through Aries at the time of the vernal equinox. This version may have been called Meshādi or the "start of Aries".