Abstract
DURING the very stormy and unsettled weather we had about a fortnight ago, I was one of a party of friends on a visit at a country-house near Huntly, about forty miles from this, who were witnesses, on the evening of Sunday, 15th inst., to a very striking, and, as a friend well versed in meteorology has since informed me, very uncommon phenomenon. It was that not only of a complete and brilliant primary lunar rainbow with colours, but also, a few minutes later, of a complete and well-defined, but, of course, less brilliant, secondary bow. No trace of colour could be observed on the secondary, but, inside the primary, the space seemed, in contrast with the faint moonlight, even more brilliantly and uniformly illuminated than I recollect ever to have seen it within a solar rainbow. The time was about eleven o'clock, and the centre of the bows, therefore, bore about W. or a little to the N. of W.
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WALKER, R. Secondary Lunar Rainbow. Nature 18, 618 (1878). https://doi.org/10.1038/018618b0
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DOI: https://doi.org/10.1038/018618b0
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