Josep Comas i Sola (17 December 1868 – 2 December 1937) was a Spanish astronomer and discoverer of minor planets, comets, and double stars. He was born of Catalan origin in Barcelona.
He wrote his first astronomy notes at 10, and was only fifteen when he published an article in a French specialist magazine.
He observed planets including Mars and Saturn, measuring the rotation period of the latter. He wrote some books popularizing astronomy, and was first president of the Sociedad Astrónomica de España y América. He discovered the periodic comet 32P/Comas Solà, and co-discovered the non-periodic comet C/1925 F1 (Shajn-Comas Solà); he is also credited by the Minor Planet Center with the discovery of 11 asteroids during 1915–1930. Comas i Solà is also credited with the discovery of the double star SOL 1.
In 1905, Solà received the Prix Jules Janssen, the highest award of the Société astronomique de France, the French astronomical society. In 1907 he claimed to observe limb darkening of Saturn’s moon Titan, the first evidence that the body had an atmosphere. He was the head of Fabra Observatory since it was established in 1904.
The asteroids 1102 Pepita (from his nickname Pepito) and 1655 Comas Solà are named after him.