Ketu (South Node) in Vedic astrology: meaning, signs, gem and mantra

Stands for
detachment, intuition, spirituality, research and the past
Rules
No sign of its own
Exalted in
Vrishchika
Debilitated in
Vrishabha
Day
Tuesday
Colour
grey, brown
Gem
cat's eye
Mahadasha
7 years
Nakshatras it rules
Ashwini, Magha, Mula
Mantra
ॐ केतवे नमः

Worship Ganesh; feed dogs; spend some quiet time in prayer.

Surya · Chandra · Mangal · Budh · Guru · Shukra · Shani · Rahu · Ketu