Including our planetary spin and orbit around the sun, our solar systems orbit around galaxy and movement through the universe..........How fast are we going and when are we moving a maximum speed???

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Short answer. About 395 miles/second.

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Any day you wake up on "the right side of the dirt" is a good day.

T. Anderson

or zero or 100,000 miles per hour all depends on which arbitary point in space you choose as stationary. I suspect the 395 miles/second figure is centred around the Sun (the poster did ask a broader question).

Phobos

Excuse me while I play the geocentrist.

The answer is zero. We're not moving, the rest of the universe is.

[img]/phpBB/images/smiles/icon_smile.gif[/img]

Actually, I think that figure is meant to refer to the speed of the Earth with respect to the frame of the Cosmic Microwave Background Radiation, which is about the closest you can come to some kind of absolute inertial reference frame. Except I believe the number is ~300 km/s, +/-10% depending on the Earth's direction around the sun. See, e.g. http://aether.lbl.gov/www/projects/u2/

Yours,

Don

I (humbly) stand corrected. Thanks, Doctor Don.

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Any day you wake up on "the right side of the dirt" is a good day.

T. Anderson

The Earth is rotating on its axis at about 1,000 miles per hour (mph) (at the equator).
The Earth is revolving around the Sun at about 67,000 mph.

Our solar system is orbiting the center of the Milky Way Galaxy at about 500,000 mph.

Our galaxy is racing toward the "Great Attractor" at about 2,230,000 mph.

Then of course, theres Monty Python:
Galaxy song music
Galaxy song lyrics
[img]/phpBB/images/smiles/icon_biggrin.gif[/img] [img]/phpBB/images/smiles/icon_smile.gif[/img] [img]/phpBB/images/smiles/icon_wink.gif[/img]

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Does anyone know what the "Great Attractor" is?

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The unexamined life is not worth living

It's the center of mass of a large cluster of galaxies called, I believe, the Local Group. The Milky Way, the Andromeda galaxy, and many others are members.

Or, you can think of it as a sort of sinkhole, and our galaxy is sliding into it like a $5,000,000 house on the Hollywood Hills... [img]/phpBB/images/smiles/icon_biggrin.gif[/img]

Sorry Donnie B.
The Great Attractor is not part of the Local Group. It is a lot farther away than that. The Local Group consists of the Milky Way, M31 in Andromeda, M33 in Triangulum, their satelite galaxies and a couple dozen dwarf galaxies. The Local Group is an outlying part of the Virgo Supercluster. The Virgo Supercluster and all clusters and superclusters within a billion light years or so "appear" to streaming toward the Great Attractor, which (by analysing the vectors of cluster movment) seems to be about 350 million light years away in the direction of Centaurus.

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<font size=-1>[ This Message was edited by: Kaptain K on 2002-06-13 20:08 ]</font>

Thanks for the correction, KK. I had a sneaking suspicion that was the case, which is why I qualified my statement (but I was too lazy to go look it up).