Ardra nakshatra
Ardra is the sixth nakshatra, spanning 6°40′–20°00′ of sidereal Gemini. Ruled by Rahu with Rudra, the storm form of Shiva, as its deity, its symbol is a teardrop: a sharp star of storms, effort and renewal.
Also known as: Aridra, Arudra, Aadra, Thiruvathirai, Thiruvathira, Ardra star
Ardra means ‘moist’ or ‘fresh’, like the air after rain. Its star is Betelgeuse, the red shoulder of Orion. Its deity is Rudra, the storm god and a fierce form of Shiva, and its symbol is a teardrop, which tradition reads as the clearing that follows a storm.
Ardra is one of the four sharp (tikshna) nakshatras, which muhurat texts set aside for decisive acts, such as breaking old patterns or demanding research, rather than for celebrations. Ruled by Rahu, it begins life in Rahu’s 18-year dasha. In Tamil Nadu and Kerala, Ardra in the month of Margazhi (Dhanu) is honoured as Arudra Darshanam and Thiruvathira, festivals of Shiva.
Its padas give the name syllables Ku, Gha, Ng and Chha. Ardra’s stormy imagery is easy to misread as trouble. Tradition sees it as intensity that clears the way, and a nakshatra is only one strand of a whole chart.