AAVSO Observer Code
American Association of Variable Star Observers (AAVSO)
Full Name
John Bortle
Stormville, NY, US
Background/Interesting Fact
AAVSO member since 1963. Recipient of the AAVSO's 23rd Merit Award; the Director's Award; the 50k, 100k, 150k, 200k observations awards for submitted visual data; creator and editor of the AAVSO Circular (1970-2000); former Sky & Telescope magazine columnist (Comet Digest 1977-1994); creator of the widely used Bortle Dark Sky Scale for evaluating sky darkness and the degree of light pollution. The 2014 recipient of the Astronomical League's Leslie C. Peltier Award for contributions of astronomical observations of lasting significance.