Surya namaskar is a sequence of yogic exercises which combines yogasanas and breathing at same time. In advanced, it is synchronised with mantras and chakra visualisation also for spiritual advancement.
So, Surya namaskar has 12 postures each stretching postures now a days. Earlier, in traditional times, it used to consist of 16 postures.
I know of the three sequences and all sequences are equally important. However, on international standards, third one is better.
1st Pattern:
- Pranamasana
- Hastottanasana
- Padhastasana
- Vama Ashwasanchalan
- Parvatasana
- Shashtangasana
- Bhujangasana
- Parvatasana
- Dakshina Aswasanchalasana
- Padahastasana
- Hastottanasana
- Pranamasana
2nd Pattern (devised by Swami Dhirender Brahmachari)
- Pranamasana
- Hastottanasana
- Padhastasana
- Vama Ashwasanchalan
- Vama Ashwasanchalan with both hands raised above the shoulders.
- Dakshina Aswasanchalasana
- Dakshina Aswasanchalasana with both hands raised above the shoulders.
- Parvatasana
- Shashtangasana
- Bhujangasana
- Padahastasana
- Pranamasana
3rd Pattern:
Starting Position: Pranamasana
- Hastottanasana (Piraiasana)
- Padahastasana
- Ashwa-sanchalasana
- Dwipadhasanchalasana
- Sasankasana
- Sastanganamaskar
- Bhujangasana
- Parvatasana
- Sasankasana
- Ashwasanchalasana
- Padhastasana
- Pranamasana