Sunday, 2 March 2008

Circumzenithal arc!

Having stopped gardening for a spot of lunch, we were indulging in a post-prandial cup of tea in the conservatory when I looked up and was completely astonished to see this rainbow smile in the sky. Yes, folks, a circumzenithal arc directly over Royston at 3pm on Sunday, 2nd March, 2008! I have never seen anything like this, and had never imagined I might. I don't know whether it was brighter before I saw it, but by the time I had fetched my camera it was fading. This was looking more or less directly upwards, with a slight southerly slant. Thanks to whoever set up the Atmospheric Optics website, I was able to look it up instantly.

Well all I can say is Wow! Some birthday presie!

14 comments:

But Why? said...

You lucky thing - I wouldn't mind getting one of those myself(!)

Rob Clack said...

I was delighted, of course. And it's all down to you that I knew where to look it up, since I stole the Atmospheric Optics link from your site.

ArcticFox said...

Fabulous... well spotted.

What was the weather like to cause it?

FoX

Pondside said...

A big smile in the sky - an incredible birthday gift, indeed. Think of the people that looked up at the sky and missed that!

Rob Clack said...

Pretty much the whole sky was blue with the wispy clouds you can see in the photo. I assume the effect is caused by ice crystals high in the atmosphere, cos I seem to recall they cause sun dogs, and there was one of those low in the southerly sky at the time.

What I'm not sure about, Pondside, is whether these are relatively rare, or common but we don't happen to notice them.

DJ Kirkby said...

What an amazing sight.

A Mother's Place is in the Wrong said...

Wonderful Rob, and amazing that you managed to get such a good photo of it. What a Birthday weekend! M xx

Brom said...

Ohhh that's different. Dropped in via random lunchtime linkage. I'm employed as a scientist, however, I can't answer that one straight away... I'll have a think, and then make up some complete Bo££ox, well it's kept me in a job for the last x years!

Rob Clack said...

Welcome, Brom, and please feel free to make something up. You can't fool me, I've been married to a scientist for several decades, so I'm immune!

D-HOR said...

How cool is that!?!!?!? I love rainbows and that is NEATO, thanks for sharing "bones" ;)

Ok and btw, since I'm a dirty person when I first read your title I thought it said "circumsicion." :P

Sorry, I bring down the IQ here a tad, but I can't help myself :)

Rob Clack said...
This comment has been removed by the author.
Rob Clack said...

Curious. I don't recall deleting my comment, but I'll put back the gist, though I've now deleted it from my email, too, so can't remember the detail.

d-hor, don't knock yourself so. I like it when you visit and comment. You've been supporting me since I started blogging and I appreciate that!

The other thing that keeps coming back to me is the situation with you and your Mexican. There's nothing I can do, just wish you well and let you know I'm rooting for you. I also have to apologise that I've barely skimmed your blog lately, having been frantically busy.

So busy, in fact, that I've worked half a day today (Sat) and will do another half day tomorrow. And that from a guy that doesn't do overtime!

So think about what he likes to do to you, and what he likes you to do to him, and write that. I'm sure you're way ahead of me there! And don't try to write it like an author, write it as it comes out of your mouth. He'll read it hearing your voice inside his head.

rilly super said...

I had never heard of this effect before Rob, although someone once point out to me what they said was a brocken spectre although I was freezing my arse off on a bloody hill so didn't appreciate it at the time as much as I feel I should have. This time of year does seem to quite good for unpronouncable atmospheric phenomena

Rob Clack said...

And of course, you live in the impenetrable wildernesses of the far north, don't you Rilly darling? I do feel for you. We're off to the ballet in London on Friday. Just thought I'd like to share that with you!