The Holy Birthday of Sri Shankaracharya Swami (Adi Shankara) is Panchami of Sukla Paksha in Vaisaka. On that day, the Star would be either Thiruvadirai (Arudra) appropriate to Shiva or Punarvasu, appropriate to Sri Rama!
Kanchi Mahaperiyava in Deivathin Kural.
The beautiful painting of Periyava offering Lotus to Nataraja is by Shri Narayanan Bala. The colourful dancing Nataraja painting is by Smt Girija Jayaraman!