Funny that this topic should come up.. I was looking at the moon the other night with my 70mm Telescope & saw the exact same thing. I took a picture of it..
Please keep in mind I used my cellphone to take the pic. So the quality is questionable, the pics were mainly for my own enjoyment. The same effect came out in a few other shots as well. I hadn't had my telescope setup in a while & didn't have my camera attachment handy in order to use my good Nikon for pics..

I really wonder what that's about?

lemme clarify here. We all know for example about the little saying when there's a ring around the moon, snow's coming. But we're talking about a small barely noticable blue outline around the moon right? If so then ya, i've noticed it too just recently, good post.

optical illusion is my best guess, but then again i think i would have noticed it before. funny thing is i had this dream... it was a retarded dream, but it stressed the point that the moon was blue so i'm pretty sure its new phenomenon.

I'm a little late to this discussion, but if you wear glasses, it sounds like you're just seeing chromatic abberation, which is an optical defect in lenses that causes one end of the visible spectrum to focus at a different point than the rest (and its usually blue light that doesn't focus properly). Its very common in less expensive binoculars and telescopes as well.

[edit on 5-2-2009 by vor78]

Guess I'm little late here too, but the OP posted in early January when I also saw a halo. Have to admit, the more you look into it the more you'll find it is refraction of ice crystals. No less spectacular, though!

If you can see the halo with the naked eye it's most likely ice or moisture in the atmosphere. With telescopes and binoculars with poor quality glass you'll get a violet "halo" due to the issues with the glass used to make the lenses. Premium telescopes use "ED" glass that removes the violet ring (this ring happens when you view bright objects). I have a number of filters usually referred to a minus violet filters that will remove the halo if it's really distracting.

I don't mean to revive such an old thread, but it saves me starting a new one. Since last night, i have been able to see this incredible blue glow around the moon. However, the way i am going to describe the situation is unusual. The moon is currently fully visible. And last night was meant to be the 'brightest, smallest moon of the year'. Anyway, if i glance at it, the moon is normal, however if i concentrated on it, in a particular manner, one that i will call 'greater squinting, without squinting the eyes'. a thick blue glow, almost 1/4 of the moons size in diameter appears around it. It's not solid and vaguely blurred. However now i just have to look at it normally and i see the glow.

This isn't the first time i have seen unusual colours/energies in my life.

I'm either hellucinating, or seeing something real. Either way im experiencing some kind of visionary image.

Just thought i'd put this out there for anyone who may have experienced something similar, do what thou wilt.

EDIT; Though i would also note, that way i was looking at the moon, i tried looking at other far away objects (light posts, mountain, plane in the sky) and i did not get any glow. If i looked at an orange light, it would slightly blur as expected from squinting in a concentrated manner, however its the same colour as the light. The reason i found this unusual is that a vibrant blue is in no way similar to the gloomy grey colour we see the moon to be.

Huh. Now I don't know what to think.

The other night, I think two nights ago, I was a cruising home and I took a gander at the moon. I did a double take as I noticed a small bit of blue around the edge. I thought it was due to my slowly fading eyesight. Maybe not.

Not something I had ever noticed before, but there is the possibility I was just seeing things.

Originally posted by TheLoony
Huh. Now I don't know what to think.

The other night, I think two nights ago, I was a cruising home and I took a gander at the moon. I did a double take as I noticed a small bit of blue around the edge. I thought it was due to my slowly fading eyesight. Maybe not.

Not something I had ever noticed before, but there is the possibility I was just seeing things.

Heh, same as me really. I was in a cab on the way home from the airport after just flying in. I thought it might be because i was tired, or a glare from the window. But after winding down the glare from the window and seeing it two nights in a row... i dunno.