Long exposure star-trail shots are some of my favourite images to make. This photo shows the crater of Lengai in August 2007 when it had a classic concave shape and several cones which are the result of chronic eruption. The 32 minute exposure has recorded the arcs of some stars which are caused by the earth’s rotation. The three closely spaced and aligned stars are Orion’s belt while the reddish arc is scribed by Betelgeuse and the most intense strip is rendered by Sirius, the brightest star.
We left base camp just after midnight to start our ascent. We reached the crater floor at 04:30 and I took this shot as we waited for sunrise. The volcanic landscape was fascinating and every physiological sense registered volcano. The smell of sulphur dioxide was strong and one could hear the molten lava sloshing around within the mountain. When the sun had risen we explored the crater and climbed a cone to view the red lava.