Ardra Nakshatra - Ardra is the sixth nakshatra in Vedic astrology ranging from 6° 40' to 20° Mithuna.
Symbol - The symbol of this nakshatra is a Tear drop, a Diamond, or a Human head.
Astronomical Name - The astronomical name of this nakshatra is Betelgeuse.
Deity of Nakshatra - Rudra, the god of destruction is the deity of Ardra nakshatra.
Ruling Planet - Ardra nakshatra is ruled by Rahu which is the North lunar node.
Others - The word Ardra means moist or wet for which it is symbolized as a Tear drop. In Hinduism there is a myth associated to Ardra is that of Taraka who was an Asura and granted invulnerability by Lord Brahma. In Tamil and Malayalam Ardra is referred as Thiruvathirai and Thiruvathira respectively. As Rahu is the ruling planet the darker side of keen desire of materialism, causing troubles for others.