Astraea heliotropium, common name the sunburst star turban or the circular saw shell, is a large sea snail, a marine gastropod mollusc of the family Turbinidae, the turbans and star snails.

[3] This large species was brought to Europe for the first time by the famous Captain Cook.

The suture is rendered zigzag by the prominent compressed triangular recurved vaulted spines which arm the acutely carinated periphery.

The wide umbilicus is deep, and coarsely obliquely striate within.

The columella is slightly dilated, impinging upon the umbilicus.