hello from Edward and a question about a satellite

[EdwardDhuyvetter]

Hi,

Does anyone know which satellite always stays in the shadow of earth.  I saw once a picture (it may have been an artists impression) of a satellite, it looked huge, and it was said (I am not sure anymore) that it stayed in the shadow either for photography of parts of earth in the shadow cone of the earth, or it was for reasons of heat shielding from the sun.

Edward

[BeanerSA]

The point in the shadow of the earth you are talking about, is called the L2 (2nd Lagrange Point).

The Planck Telescope currently sits there, and soon the James Webb Space Telescope will sit there.

http://sci.esa.int/planck/47365-fact-sheet/

[swag72]

Hi Edward and welcome to SGL - Looks like the good folks of the forum come to the rescue again!

Look forward to seeing you around

[Dave Lloyd]

Hi Edward, welcome.

[michigander]

Welcome to SGL, Edward!

Dana

[glowjet]

Hi Edward and welcome to SGL, enjoy the forum

[BeanerSA]

It turns out there is more than just Planck at that location

On 14 May 2009, the European Space Agency (ESA) launched into space the Herschel and Planck observatories, both of which use Lissajous orbits at Sun–Earth L2.ESA's current Gaia mission also uses a Lissajous orbit at Sun–Earth L2.In 2011, NASA transferred two of its THEMIS spacecraft from Earth orbit to Lunar orbit by way of Earth-Moon L1 and L2 Lissajous orbits

https://en.wikipedia.org/wiki/Lissajous_orbit#Spacecraft_using_Lissajous_orbits

[laudropb]

Hello and a warm welcome to the SGL.

[PeterCPC]

Hello and welcome.

Peter

[Vox45]

Hello and welcome to the forum

Clear skies !

[JamesM]

Hi and welcome to the forum

Clear skies

[seo]

Hi and welcome aboard !

[Dave In Vermont]

Greetings and welcome to SGL, Edward.

Clear skies,

Dave

[Pete Presland]

Hi welcome to SGL from Pete in Bedfordshire

[Chris Hopson]

Welcome Edward.

Nice question mate, I didn't know that.

Chris

[hippie]

Welcome to SGL Edward .

[Charon]

Hi from Crete.

[michael.h.f.wilkinson]

Welcome to SGL Edward

[Bizibilder]

Hello Edward and welcome to SGL!!

[Ruud]

Hi Edward,

[xtreemchaos]

hi Edward and welcome frome charl in south wales.

[triton1]

Hi there and welcome to SGL

[Starfisher]

hi and welcome!

[mcinek82]

Hi, welcome to the forum. That's an excellent question that you've asked - it encourages to search for answers, who knows what we can find

Clear skies!

[badger111]

Greetings from Maldon, UK Edward. You learn something new every day