Kalamalka Lake Eclipse . ... Credit Copyright: Yuichi Takasaka Explanation: Recorded on August 28th , this serene total lunar eclipse sequence looks southwest down Kalamalka Lake toward the lights of Coldstream , British Columbia. ... In fact, the sequence effectively measures the duration of the total phase of the eclipse . Around 270 BC, the Greek astronomer Aristarchus also measured the duration of lunar eclipses - though probably without the benefit of digital clocks and cameras. ...