Sapta rishis

 

The Saptarshi ( सप्तर्षि, 'Seven sages' ) are the seven seers of ancient India who are extolled in the Vedas, and other Hindu literature such as the Skanda Purana.

The Vedic Samhitas never enumerate these rishis by name, although later Vedic texts such as the Brahmanas and Upanisads do, so these constellations are easily recognizable

earliest formal list of the seven rishis is given by Jaiminiya Brahmana 2.218–221: Agastya, Atri, Bhardwaja, Gautama, Jamadagni, Vashistha, and Vishvamitra 

Saptarishis wiki