Astronomy Photographer of the Year judges explain how to get involved in astrophotography

Our fourth nomination from the prestigious Insight Astronomy Photographer of the Year competition, an annual celebration of the most beautiful and spectacular visions of the cosmos by astrophotographers worldwide. Now in its seventh year, the 2015 competition received 2700 spectacular entries from over 60 countries and the winners will be announced 17 September.

Our final nomination from the prestigious Insight Astronomy Photographer of the Year competition, an annual celebration of the most beautiful and spectacular visions of the cosmos by astrophotographers worldwide. The 2015 competition received 2700 spectacular entries from over 60 countries and the winners will be announced 17 September.

Comet Lovejoy soars through the night sky in a green haze with an ion tail in its wake. This image shows Lovejoy appearing to lose its tail on 21 January 2015.