International space station just passed overhead
Discussion
Mobile Chicane said:
What time was this? I reckon I saw it 22:30 or so. Dorking.
I'm near Manchester.....around 23.45 give or take.Apparently, it will be visible for the next few nights, clouds permitting.
It is about the size of an American football football pitch, and travels around 250 miles above the earth.
Long running thread here (I set it up 13
years ago) -
https://www.pistonheads.com/gassing/topic.asp?h=0&...
years ago) - https://www.pistonheads.com/gassing/topic.asp?h=0&...
I'm often out walking late at night and enjoy seeing it and wondering what's going on up there. Had some brilliant sightings, once literally from horizon to horizon straight over my head, me and some friends also saw the star train satellites a night or 2 after they were launched. Rather odd seeing a string of 50 odd 'stars' following each other bearing in mind none of us knew about them at the time.
Eric Mc said:
Long running thread here (I set it up 13
years ago) -
https://www.pistonheads.com/gassing/topic.asp?h=0&...
Sorry Eric, I must have missed it..
years ago) - https://www.pistonheads.com/gassing/topic.asp?h=0&...
This is a place to look to plan your sightings of various satellite passes.
https://www.heavens-above.com/
https://www.heavens-above.com/
slopes said:
Watched it going over last night with my step son, was pretty cool.
From what i can remember of watching the Mir all those years ago, it was a lot lower angle in the sky than the ISS was last night and appeared to be going much faster.
Mir followed a broadly similar orbital path to the ISS. Both space stations had/have a large Russian content (Mir = 100%) so it was important that both pass over Russia on their orbits. The ISS also has a large European content, so it is important that it also passes over countries like the UK, Germany, the Netherlands etc. That is what dictates its orbital inclination.From what i can remember of watching the Mir all those years ago, it was a lot lower angle in the sky than the ISS was last night and appeared to be going much faster.
The old Skylab space station was 100% American so there was no requirement for it to pass over Northern Europe. Because of that it had a lower orbital inclination and was generally not visible from the UK in the years it was in orbit (1973 to 1979). Likewise, Chinese space stations tend not to be visible from Europe.
Over the course of a series of orbits, passes will change angle and location as seen by a ground observer due to the rotation of the earth. So, if you are lucky to see more than one ISS pass on a night (I've seen three passes in one night), each time it goes over it will appear in a different past of the sky as the observer's position rotates along with the earth.
As Eric says .....
Eric Mc said:
Long running thread here (I set it up 13
years ago) -
https://www.pistonheads.com/gassing/topic.asp?h=0&...
years ago) - https://www.pistonheads.com/gassing/topic.asp?h=0&...
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