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moon halo

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19 years 4 months ago #6287 by spudnik
moon halo was created by spudnik
wow. Saw an amazing moon halo tonight (my first). Spotted it when I went out with the scope about 9pm and as far as I know it is still there.

I live pretty close to an airport and the planes just happened to be flying directly thorugh the halo, drawing pronounced straight lines with their icy contrails. These were then drifting and degrading one by one over time across the halo. Spectacular stuff!

I just wish the damn camera worked...............

"Not only is the universe stranger than we imagine, it is stranger than we can imagine" Sir Arthur Eddington

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19 years 4 months ago #6288 by markdj
Replied by markdj on topic Re: moon halo
Yes

John McConnell and myself saw a partial moon halo on Wednesday 24th November.

Here's one I took in February...



The explanation is as follows...

It occurs when high thin clouds containing millions of tiny ice crystals cover much of the sky. Each ice crystal acts like a miniature lens. Because most of the crystals have a similar elongated hexagonal shape, light entering one crystal face and exiting through the opposing face refracts 22 degrees, which corresponds to the radius of the Moon Halo. A similar Sun Halo may be visible during the day.

Clear Skies


MarkDJ

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19 years 4 months ago #6290 by dave_lillis
Replied by dave_lillis on topic Re: moon halo
Yes, its still there at the moment, nice and bright, although you can hardly see anytihg else in the sky at the moment.

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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19 years 4 months ago #6292 by Lexi
Replied by Lexi on topic Re: moon halo
Yes I seen it about 12.30 granted I wasn't sure what is was but now I know...it did look amazing glad I seen it now :D

"Shoot for the moon. If you miss, you'll land in the stars." --Les Brown

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19 years 4 months ago #6301 by Keith g
Replied by Keith g on topic Re:
You mean something like this? I took this shot in January 2003
It's a cool (colder than cool) sight :D
www.irishastronomy.org/user_resources/fi...71322-Lunar-Halo.jpg

Keith..[/img]

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19 years 4 months ago #6307 by Seanie_Morris
Replied by Seanie_Morris on topic Re: moon halo
Saw it myself when I got home from work at about 3am. It was HUGE! Beautiful too!

Seanie.

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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