A PORT Glasgow teacher who is becoming a star on the astronomical circuit has been invited to speak on BBC Radio Scotland on Monday.

Stephen McAllister will be live on the morning show with host John Beattie at around 10.45am. 

Stephen, who teaches physics at St Stephen's High, will appear alongside Professor Catherine Heymens who is astronomer royal for Scotland. 

Star man Stephen captures awe-inspiring photographs of solar systems which lie around 12.5 million light years from our planet and recently featured in the Tele.

On the radio show, Stephen will speak about his journey into astronomy and astrophotography after starting out with an astroscope from Aldi.