On 06/12/2016 11:30, Mike Causer wrote:
On Tue, 6 Dec 2016 11:05:00 -0000
"P.Chortik" P.Chortik@Btinternet .com wrote:

http://www.dailymail.co.uk/sciencete...henomenon.html

Given the brightness of that display I'd be looking in the opposite
direction for 120 degree parhelia!

That is certainly a very bright and white one. More often than not the
sundogs are quite highly coloured by wavelength dispersion.

Saw a really nice one sided sundog and a colourful circum zenithal arc
at Whitby 15/11/2016. Conditions recently have been about right for this
in the UK with milky white high cirrus on very cold sunny days.

Sundogs are a lot more common than you might think. But few people seem
to notice them or be impressed when they are pointed out.

I can understand how CZAs get missed. I'd have missed it too if I hadn't
been looking upwards to frame a photograph of a lighthouse.

--
Regards,
Martin Brown