is sputnik still orbiting earth?

is sputnik still orbiting us? if so i think it would be nice to bring it
back and put it in a museum.

probably be quite expensive and hard to justify resorce.

Hayley nous a écrit :

is sputnik still orbiting us? if so i think it would be nice to bring
it back and put it in a museum.

probably be quite expensive and hard to justify resorce.

I don't know if Sputnik is still orbiting, but how would you do to go
and bring it back on earth ?
With the US shuttle ?

--
Norbert. (no X for the answer)
======================================
knowing the universe - stellar and galaxies evolution
http://nrumiano.free.fr
images of the sky http://images.ciel.free.fr
======================================

"Hayley" wrote:

is sputnik still orbiting us?

No. It was incinerated on re-entry 3 months after launch. It had no
engine, so the drag of the Earth's atmosphere slowed it down and it
fell back to Earth. There isn't much atmosphere at the heights Sputnik
reached, but you have to go very fast to stay in orbit so even that
very tenuous atmosphere slows satellites down enough that without an
occasional boost from an engine they fall back to the ground
eventually.


Tim
--
You are being watched. This gives you power.

In message , Hayley
writes
is sputnik still orbiting us? if so i think it would be nice to bring it
back and put it in a museum.

probably be quite expensive and hard to justify resorce.



Sputnik 1 re-entered after 92 days.
Vanguard 1 is still out there, with an estimated lifetime of 300 years.
It's clearly visible if you know where to look - Heavens-Above says it's
mag 8.4 at maximum.
It will still be out there when we can get it cheaply, with any luck.
--
Remove spam and invalid from address to reply.

On Fri, 26 Aug 2005 22:59:28 +0100, Jonathan Silverlight wrote:
Vanguard 1 is still out there, with an estimated lifetime of 300 years.

Also I think Prospero(sp?) is still 'up there', the only British satellite
ever launched by a British vehicle (Black Night, wot was going to be the
upper stage of the much larger lift vehicle Blue Streak, (amongst its other
nefarious purposes) until killed by Wilson, Benn et al)

Black Night,

ooops !
Black Knight.

my excuse? 3am local :-!(

On Sat, 27 Aug 2005 02:04:23 GMT, MalcolmP wrote:
ooops !
Black Knight.

Crumbs,
Just done some googling and it wasn't even Knight,
it seems that it was Black Arrow !
How odd, where did I get Black Knight from I wonder ?

Now I must stop talking to myself ,,,

On Sat, 27 Aug 2005 07:42:06 GMT,
(WaltA) wrote:

Just done some googling and it wasn't even Knight,
it seems that it was Black Arrow !
How odd, where did I get Black Knight from I wonder ?

Black Arrow was the successor to Black Knight and launched Prospero in
1971.

--
Alan White
Twenty-eight miles NW of Glasgow, overlooking Loch Goil and Loch Long in Argyll, Scotland.
Web cam and weather:- http://www.windycroft.gt-britain.co....her/kabcam.htm
Some walks and treks:- http://www.windycroft.gt-britain.co.uk/walks/

"WaltA" wrote in message
...
On Sat, 27 Aug 2005 02:04:23 GMT, MalcolmP wrote:
ooops !
Black Knight.

Crumbs,
Just done some googling and it wasn't even Knight,
it seems that it was Black Arrow !
How odd, where did I get Black Knight from I wonder ?


A Deep Purple single ?

In message , MalcolmP
writes
On Fri, 26 Aug 2005 22:59:28 +0100, Jonathan Silverlight wrote:
Vanguard 1 is still out there, with an estimated lifetime of 300 years.

Also I think Prospero(sp?) is still 'up there', the only British satellite
ever launched by a British vehicle (Black Night, wot was going to be the
upper stage of the much larger lift vehicle Blue Streak, (amongst its other
nefarious purposes) until killed by Wilson, Benn et al)


Along with TSR-2 (and other projects ?) as Harold Wilson spouted about
"White Heat of Technology" and worked at turning this country into a
Third World failure.
Political rant over :-)
Heavens-Above says Prospero's maximum brightness is 5.4, so it should be
much easier than Vanguard. The RAE Handbook says its lifetime is 150
years. The Waxwing rocket stage is also up there, with similar
characteristics.
It will still be there when "Yesterday's Men" aren't even a memory.
Time to get out the binocular (given clear skies !)
--
Remove spam and invalid from address to reply.