Jyotisha in the context of "Greek astrology"

Vedanga Jyotisha (IAST: Vedāṅga Jyotiṣa), or Jyotishavedanga (Jyotiṣavedāṅga), is one of earliest known Indian texts on astrology (Jyotisha). The extant text is dated to the final centuries BCE, but it may be based on a tradition reaching back to about 700-600 BCE.

The text is foundational to Jyotisha, one of the six Vedanga disciplines. Its author is traditionally named as Lagadha.

The surface color of the planet Mars appears reddish from a distance because of rusty atmospheric dust. From close up, it looks more of a butterscotch, and other common surface colors include golden, brown, tan, and greenish, depending on minerals.

The apparent colour of the Martian surface enabled humans to distinguish it from other planets early in human history and motivated them to weave fables of war in association with Mars. One of its earliest recorded names, Har decher, literally meant "Red One" in Egyptian. Its color may have also contributed to a malignant association in Indian astrology, as it was given the names Angaraka and Lohitanga, both reflecting the distinctively red color of Mars as seen by the naked eye.

A panchāngam (Sanskrit: पञ्चाङ्गम्; IAST: pañcāṅgam) is a Hindu calendar and almanac, which follows traditional units of Hindu timekeeping, and presents important dates and their calculations in a tabulated form. It is sometimes spelled Panchāngamu, Pancanga, Panchanga, Panchaanga, or Panchānga, and is often pronounced Panchāng. Panchangas are used in Jyotisha (Jyotiṣa) (Indian astrology).

In Nepal and Eastern India, including Assam, Bengal and Odisha, the Panchangam is referred to as Panjika, and in the Mithila region, it is known as Maithili Panchang or Patra.