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IMBERBE#13: ASTRONOMY QUIZ (RV)

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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Phokojwe » Fri Feb 14, 2014 11:47 am

I concur with you Timepilot :whistle:
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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby onewithnature » Mon Feb 17, 2014 4:08 pm

Spot on, TP :clap: :clap: ; anything less than that and the capsule will arc back to Earth. Over to you. :thumbs_up:
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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Timepilot » Tue Feb 18, 2014 12:32 am

Thanks OWN. :thumbs_up:

Why is the International Space Station not set up for a geosynchronous or geostationary orbit?
“ Every year elephants were becoming scarcer and wilder south of the Zambezi, so that it had become impossible to make a living by hunting at all. ” FC Selous 1881

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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Imberbe » Fri Jan 02, 2015 7:10 pm

:hmz: Because they want to see the world?
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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Pilane » Fri Feb 20, 2015 7:59 am

Agree with Imberbe. It would have been "attached" to a point on earth and would complete one orbit in 24 hrs like the comms sats above the equator

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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Philip1 » Fri Feb 20, 2015 9:34 am

Has it got to do with elliptical orbits?
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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Phokojwe » Tue Feb 24, 2015 12:13 pm

In addition to the above :)

The ISS is located in LEO (Low earth orbit) and provides a relatively safe location to test spacecraft systems that will be required for long-duration missions to the Moon and Mars.
If it was set up for geosynchronus or geostationary orbit it would be significantly further from the earth.
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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Timepilot » Tue May 12, 2015 2:02 am

Sorry folks, been working away on a computer system that would not allow access to the forums!

A geosynchronous or geostationary orbit would be significantly higher than the LEO orbit which would have made it very difficult to construct - shuttle would not have been able to get there. It would also have placed the ISS in an area of much higher radiation requiring shielding. The ISS would not have been able to meet it's mission objectives outside of a LEO. And, it would have made it extremely costly to maintain services to the ISS in the higher orbits.

As Imberbe said - first to post!
“ Every year elephants were becoming scarcer and wilder south of the Zambezi, so that it had become impossible to make a living by hunting at all. ” FC Selous 1881

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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Phokojwe » Thu May 14, 2015 2:58 pm

Where in our solar system would you most likely find a prominence?
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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby George_Brits » Thu May 14, 2015 9:56 pm

Phokojwe wrote:Where in our solar system would you most likely find a prominence?


solar flares from the sun?

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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Phokojwe » Fri May 15, 2015 3:08 pm

Not quite George :naughty:
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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby George_Brits » Fri May 15, 2015 7:51 pm

If not solar flares, then it must be the sun :pray:

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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Phokojwe » Mon May 18, 2015 10:10 am

George I'll hand it to you :thumbs_up:

A solar prominence is a jet of bright plasma that spews from the Sun's surface

Think of solar prominence as the Sun stretching out its gas components to a length that can reach thousands of kilometers while solar flares are similar to this only that it snaps at the peak of its stretch.
So basically, flares actually get out of the Sun. Prominences, meanwhile, are largely self-contained by the Sun's own magnetic field.
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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby Philip1 » Mon May 18, 2015 10:23 am

Phokojwe wrote:George I'll hand it to you :thumbs_up:


George. :thumbs_up:
"Lose yourself in Nature and find Peace!" (Ralph Waldo Emerson)
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Re: IMBERBE#13: ASTRONOMY QUIZ (RV)

Unread postby George_Brits » Mon May 18, 2015 11:33 am

Philip1 wrote:
Phokojwe wrote:George I'll hand it to you :thumbs_up:


George. :thumbs_up:


Thank you gents...

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