Monday, 20 June 2016

Two moons

A spot of mooning last night, following talk of strawberry moons, the first time for perhaps a couple of months. See reference 1 for a notice towards the end of the last bout.

So we had the full moon rising over the houses across the road, to the southwest, at about 2200 yesterday evening, behind some trees.

And slightly to the left of the full moon proper there was an echo, a full disc but paler. Was I seeing things?

I thought the fact that I was using a monocular and that I got the effect with both eyes was an argument against. Not some failing of binocular vision. On the other hand, the pattern of twigs on the two moons looked suspiciously similar.

No alcoholic drink had been taken.

I then thought of the account in Bostridge, that is to say in the book mentioned at reference 2. There is a chapter there about the song 'Die Nebensonnen', in which he explains that seeing three suns is a well attested atmospheric phenomenon, aka parhelia. Perhaps moons can do it as well? Perhaps you can have two instead of three?

Google is awash with double moons, but the small sample of hits that I have glanced at seem to be about Mars, all very improbable. See reference 3. While calling this particular moon the strawberry moon does not seem to be relevant at all.

Clearly something else on which I need expert advice - either from a doctor or an astronomer!

PS: for once in a while, google's blogger software was behaving badly in the course of this post, creating unwanted second posts on exit from first posts. Is it all a conspiracy? Is their a cunning, cortana controlled white balloon being flown over the downs?

Reference 1: http://psmv3.blogspot.co.uk/2016/04/pinafore.html.

Reference 2: http://psmv3.blogspot.co.uk/2016/05/winterreises-old-and-new.html.

Reference 3: https://weather.com/news/news/no-double-moon-hoax-august-2015.

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