[ingannilo]

I've done some searching (both browsing and using the search function) and I haven't found anything really informative regarding this, so I've created my first thread on Hypography.

A few times, usually in more rural areas, in central Florida, and now on a private beach near Santa Cruz here I've seen a very defined ring around the moon, about 170%-190% the size of the moon it's self. Always the same relative size, only in areas with very low light polution.

Can anyone offer an explination?

John

[Jay-qu]

It is called a moon halo - and can also happen to the sun. It is caused by tiny ice crystals, normally from really high thin clouds, the crystals bend the light that came from the moon - because of refractive properties of ice it is mostly around the 22 degrees mark

[ingannilo]

crazy stuff.

While I'm asking moon questions, does anyone know why in (or I've only seen it in) mid/late november the moon turns orangeish?

I realize that it's pretty vague, but anyone?

[TheBigDog]

ingannilo said:

crazy stuff.

While I'm asking moon questions, does anyone know why in (or I've only seen it in) mid/late november the moon turns orangeish?

I realize that it's pretty vague, but anyone?

I think it has to be with being low on the horizon, and so the light is passing through more of the atmosphere and you see the slow end of the spectrum. Just like a sunset. A moonset. I think it is also called a Harvest Moon, but that may be wrong.

Bill

[Turtle]

Halo it is. Here's a link regarding these phenomena; a photo & discussion of an unusal elliptical halo around the Moon which is still unexplained.
The site has regular articles by Wes Cowley, an expert in optical effects.

http://www.spaceweather.com/index.cgi
From this page got to the upper right corner archive area & enter the date December 13th, 2005 to see the elliptical halo.

[ingannilo]

I took my second quetsion over to google and turned this up:
http://home.hiwaay.n...oon/moonorange/

Quote

The moon appears to be certain colors during certain times of the year. For instance, the Harvest moon during the fall appears very large and orange.

But still nothing thoroughly explain the Harvest moon phenomena.

[Qfwfq]

ingannilo said:

But still nothing thoroughly explain the Harvest moon phenomena.

I think the last bit, entitled "Harvest Moon Colors", is a good enough explanation.

[Drip Curl Magic]

I've heard of the ring around the moon thing.... never seen it myself, though.

I hope I do, someday soon.

from what we know, does the occasional ring around the moon show up in pictures?

[Tormod]

Drip Curl Magic said:

from what we know, does the occasional ring around the moon show up in pictures?

Yes. it's an atmospheric effect.

http://antwrp.gsfc.n...d/ap000515.html

[Drip Curl Magic]

beautiful.