An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

A galaxy with a striking ring-like feature lying about 400 million → light-years away in the → constellation  → Sculptor. The ring-like structure, over 100,000 light-years in diameter, is composed of regions of → star formation filled with very bright, → massive stars. The shape results from collision with another smaller galaxy.

Cartwheel, from cart from O.N. kartr; → wheel; → galaxy.

Kahkašân, → galaxy. Carx-e arrâbé "cartwheel," from carx, → wheel + arrâbé "cart, chariot," maybe related to Mid.Pers. ras, ray "wheel," O.Pers./Av. raθa- "wheel," Khotanese rrha- "car," Skt. ratha- "wheel," L. rota "wheel," PIE base *rotos "wheel."