HelioBlue

Helio Blue is both a colour and the sum of its parts. Helio, the Sun or in this case the radio-heliograph that captures two-dimensional images of the solar corona at different frequencies, against Blue, the sky as it gradually shifts from white to black through 52 shades of blue; a re-imagining of the Cyanometer an 18th century instrument for measuring the ‘blueness’, specifically the colour intensity of blue sky.

HelioBlue (excerpt) | 21 mins | 2015

HelioBlue |still frame |21 mins | 2015

With special thanks to The Gauribidanur Radio Observatory operated jointly by Raman Research Institute and the Indian Institute of Astrophysics. The observatory has been in operation since 1976.