ALBEDO
Set to 4 different clues across 4 published puzzles, most often “Light ratio in astronomy” — The New York Times, Thursday, 25 December 2008.
6 letters
Every clue on record, most used first
- Light ratio in astronomyonce
The New York Times — Thursday, 25 December 2008
- Measure of reflected lightonce
The New York Times — Saturday, 9 June 2007
- Reflecting power of a planetonce
The New York Times — Wednesday, 27 April 2005
- Light reflection ratioonce
The New York Times — Wednesday, 24 January 2001