moon wobble in video :)

[binabik]

a friend just pointed out this link to me:

Video: Year of Moon Motion in 2.5 Minutes | Wired Science | Wired.com

from the article:

"Many claim to see a man in the moon, but now an animation has been made that showcases a year’s worth of moon movements in less than three minutes."

thought it might interest everyone else around here too.

regards,

simon

[Telrad]

Thanks for posting this video link showing lunar-libration at high speed!

[Astro Imp]

Thanks Simon.

I found that video strangely hypnotic and slightly nausea inducing, but still very interesting.

[Tantalus]

If you've got a copy of Virtual Moon Atlas, go to the 'Ephemeris' tab, then click and hold down the '>' button to advance the time in 1hr increments, and you see the same effect.

[jimmythemoonlight]

excellent video just shows you what the earth might be doing while we're sleeping or to busy to think otherwise thanx binabik jimmythemoonlight

[Multi-Coated]

Spot on link thanks for pointing it out .

[binabik]

Thanks Simon.

I found that video strangely hypnotic and slightly nausea inducing, but still very interesting.

agreed.

[Mr Spock]

Makes me feel moon-sick, but I could watch it for hours.

[Viv]

Sorry - no fake don't believe it !!!

(there are no clouds for a whole year) lol

Nice video

[jmurray01]

Thanks Simon.

I found that video strangely hypnotic and slightly nausea inducing, but still very interesting.

Hypnotic - yes, nauseating ? No... But perhaps "moon sickness" does exist

[jmurray01]

This may sound stupid... But was that the real moon ?

[binabik]

Sorry - no fake don't believe it !!!

(there are no clouds for a whole year) lol

Nice video

this is the original source:

SVS Animation 3810 - Moon Phase and Libration, 2011

it's a computer rendered animation of data taken by a satellite orbiting the moon. that explains the no clouds...

[Jack123456]

this may be a silly question, but why does the moon wobble like that?

[mag10]

"...this may be a silly question, but why does the moon wobble like that?"

As far as I know, there are no silly questions, (but stupid answers are quite frequent!).

To whit:

I thought I knew what caused libration (It "had" to be because of Earth's reciprocal gravitational pull on the Moon), but I googled it to confirm. Good thing too because I was so far off, had I answered that, I would have come off looking like a perfect dolt!

(Another reason why "stupid" questions are'nt. They sometimes force us to correct our misconceptions).

There are actually three kinds of librations (wobbles) that affect the Moon. Here all explained in excruciating detail:

http://www.phy6.org/stargaze/Smoon4.htm

Take care

[Jack123456]

Thanks, very interesting reading:)