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AP: First detection of extra-solar terrestial sized planet?
- pmgisme
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17 years 5 months ago #45188
by pmgisme
Replied by pmgisme on topic Re: AP: First detection of extra-solar terrestial sized planet?
I AGREE!. I calculated for Alpha Centauri.(80,00 years for Voyager.)
Not the new planet almost four times farther away.
Apollo 10 would indeed reach the new planet in about half a million years.
I spotted my mistake the second I sent it and waited for the flak!
Peter.
Not the new planet almost four times farther away.
Apollo 10 would indeed reach the new planet in about half a million years.
I spotted my mistake the second I sent it and waited for the flak!
Peter.
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- Seanie_Morris
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17 years 5 months ago #45204
by Seanie_Morris
And some flak you got!
Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
Replied by Seanie_Morris on topic Re: AP: First detection of extra-solar terrestial sized planet?
I spotted my mistake the second I sent it and waited for the flak!
And some flak you got!
Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
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- pmgisme
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17 years 5 months ago #45210
by pmgisme
Replied by pmgisme on topic Re: AP: First detection of extra-solar terrestial sized planet?
I also spotted my mistake when I said it was "four times farther away".
It's almost five times farther away!
So around 625K years would be correct!
Peter.
P.S. The great admit their errors.
It's almost five times farther away!
So around 625K years would be correct!
Peter.
P.S. The great admit their errors.
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- Pioneer
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17 years 5 months ago #45215
by Pioneer
Replied by Pioneer on topic Re: AP: First detection of extra-solar terrestial sized planet?
Your not the only one making errors. I was watching the TV3 New last night and if I'm not mistaken they said the planet was 2 million Light Years away . Just shows you can't beleve everything they say on TV.
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- pmgisme
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17 years 5 months ago #45227
by pmgisme
Replied by pmgisme on topic Re: AP: First detection of extra-solar terrestial sized planet?
Martin Turner had a brilliant cartoon about it in the Irish Times today.
A few atronomers peering at it through an enormous scope wondering if the water was pure enough for Galway.
Peter
A few atronomers peering at it through an enormous scope wondering if the water was pure enough for Galway.
Peter
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17 years 5 months ago #45370
by dmcdona
Replied by dmcdona on topic Re: AP: First detection of extra-solar terrestial sized planet?
If anyone is interested.... The Times (British) quoted a 5 billion year journey time to Gliese 581c. Clearly something wasn't quite right with the mathhs.
Gliese 581 is about 120 trillion miles away (120,519,500,000,000 miles). The fastest manned spacecraft (sustained speed) is Apollo 10 at 24,791mph.
What the Times did was divided the distance by the speed (120 trillion/25,000) and got 5 billion - *hours*. Unfortunately, they forgot to reduce the time to years....
5 billion/24*365 is just over half a million years.
So, a lesson in making sure the papers (and the TV) have got their maths right...
Cheers
Dave
Gliese 581 is about 120 trillion miles away (120,519,500,000,000 miles). The fastest manned spacecraft (sustained speed) is Apollo 10 at 24,791mph.
What the Times did was divided the distance by the speed (120 trillion/25,000) and got 5 billion - *hours*. Unfortunately, they forgot to reduce the time to years....
5 billion/24*365 is just over half a million years.
So, a lesson in making sure the papers (and the TV) have got their maths right...
Cheers
Dave
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