Ashvin

The divine twins, the physicians of the Gods. They carry a horse’s head – Ashva means horse. Their names are Nasatya and Dasra.

They symbolize the twilight, morning and evening star.

Her father is Surya, her mother Samjna. Samjna had left Surya and was staying in Uttarakuru as a mare. Surya visited her as a stallion, the Ashvins were born.

In the Mahabharata Madri, the second wife of Pandu, begat with the Ashvini Nakula and Sahadeva.

Read about the Ashvin
http://sushmajee.com/biographies/bio-A/ashwinee.htm