http://arxiv.org/abs/1507.06270
Using CCD observations of a candle flame situated at a distance of 338 m and calibrated with observations of Vega, we show that a candle flame situated at ~2.6 km (1.6 miles) is comparable in brightness to a 6th magnitude star with the spectral energy distribution of Vega. The human eye cannot detect a candle flame at 10 miles or further, as some statements on the web suggest.
K. Krisciunas and D. Carona
Thu, 23 Jul 15
19/39
Comments: 9 pages, 6 figures
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