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uk.tech.digital-tv (Digital TV - General) (uk.tech.digital-tv) Discussion of all matters technical in origin related to the reception of digital television transmissions, be they via satellite, terrestrial or cable. Advertising is forbidden, with no exceptions. |
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#1
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Found this picture some of you might like:
http://imgur.com/gallery/hky2HYp via https://www.reddit.com/r/space/comme...ographed_last/ Then in the comments section one contributor managed to highlight the satellites: http://i.imgur.com/TCGQX4l.gif Rather impressive, I think! |
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#3
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Bill Wright Wrote in message:
Chris Hogg wrote: On Tue, 6 Oct 2015 12:34:04 -0700 (PDT), wrote: Found this picture some of you might like: http://imgur.com/gallery/hky2HYp via https://www.reddit.com/r/space/comme...ographed_last/ Then in the comments section one contributor managed to highlight the satellites: http://i.imgur.com/TCGQX4l.gif Rather impressive, I think! I'm not sure I understand what I'm seeing in that last link. The video seems to be a loop: OK (but I may be wrong). Stars apparently whizzing by, as the earth rotates: also OK. But what puzzles me is that I can count I think it's 17 points of light, presumably satellites, strung out in a straight line diagonally across the field of view, and not moving, i.e. geostationary. There are two or three other satellites that move slightly back and forth as the loop goes round. But what are the seventeen? Are they seventeen actual satellites all strung out across the sky, which seems rather a lot, or are there really a lot fewer, that re-appear in different but exactly reproducible places, as the loop proceeds? Taking it at face value they are 17 actual satellites. There are satellites every few degrees in some parts of the Clarke Belt. Bill I once saw a picture with showed all the satellites in orbital position 28.2 deg as a separate point of light. -- Graham. %Profound_observation% ----Android NewsGroup Reader---- http://usenet.sinaapp.com/ |
#4
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On Wed, 07 Oct 2015 13:47:08 +0100
Bill Wright wrote: Chris Hogg wrote: On Tue, 6 Oct 2015 12:34:04 -0700 (PDT), wrote: Found this picture some of you might like: http://imgur.com/gallery/hky2HYp via https://www.reddit.com/r/space/comme...ographed_last/ Then in the comments section one contributor managed to highlight the satellites: http://i.imgur.com/TCGQX4l.gif Rather impressive, I think! I'm not sure I understand what I'm seeing in that last link. The video seems to be a loop: OK (but I may be wrong). Stars apparently whizzing by, as the earth rotates: also OK. But what puzzles me is that I can count I think it's 17 points of light, presumably satellites, strung out in a straight line diagonally across the field of view, and not moving, i.e. geostationary. There are two or three other satellites that move slightly back and forth as the loop goes round. But what are the seventeen? Are they seventeen actual satellites all strung out across the sky, which seems rather a lot, or are there really a lot fewer, that re-appear in different but exactly reproducible places, as the loop proceeds? Taking it at face value they are 17 actual satellites. There are satellites every few degrees in some parts of the Clarke Belt. Bill But they might not all reflect the sun's light, at the time of the photo strip. -- Davey. |
#5
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![]() In article: Graham. says... I once saw a picture with showed all the satellites in orbital position 28.2 deg as a separate point of light. Who painted it? -- Ken O'Meara |
#6
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On Wed, 07 Oct 2015 21:58:06 +0100
Chris Hogg wrote: On Wed, 07 Oct 2015 13:47:08 +0100, Bill Wright wrote: Chris Hogg wrote: On Tue, 6 Oct 2015 12:34:04 -0700 (PDT), wrote: Found this picture some of you might like: http://imgur.com/gallery/hky2HYp via https://www.reddit.com/r/space/comme...ographed_last/ Then in the comments section one contributor managed to highlight the satellites: http://i.imgur.com/TCGQX4l.gif Rather impressive, I think! I'm not sure I understand what I'm seeing in that last link. The video seems to be a loop: OK (but I may be wrong). Stars apparently whizzing by, as the earth rotates: also OK. But what puzzles me is that I can count I think it's 17 points of light, presumably satellites, strung out in a straight line diagonally across the field of view, and not moving, i.e. geostationary. There are two or three other satellites that move slightly back and forth as the loop goes round. But what are the seventeen? Are they seventeen actual satellites all strung out across the sky, which seems rather a lot, or are there really a lot fewer, that re-appear in different but exactly reproducible places, as the loop proceeds? Taking it at face value they are 17 actual satellites. There are satellites every few degrees in some parts of the Clarke Belt. Bill So I see. Thanks. I hadn't appreciated how busy it was up there. https://en.wikipedia.org/wiki/List_o...chronous_orbit You can thank Arthur C. Clarke for the idea. -- Davey. |
#7
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UnsteadyKen Wrote in message:
In article: Graham. says... I once saw a picture with showed all the satellites in orbital position 28.2 deg as a separate point of light. Who painted it? -- Ken O'Meara I'm happy enough with picture vs. image but I should have said each and not all. -- Graham. %Profound_observation% ----Android NewsGroup Reader---- http://usenet.sinaapp.com/ |
#8
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On Wed, 7 Oct 2015 15:36:29 +0100, Davey
wrote: On Wed, 07 Oct 2015 13:47:08 +0100 Bill Wright wrote: Chris Hogg wrote: On Tue, 6 Oct 2015 12:34:04 -0700 (PDT), wrote: Found this picture some of you might like: http://imgur.com/gallery/hky2HYp via https://www.reddit.com/r/space/comme...ographed_last/ Then in the comments section one contributor managed to highlight the satellites: http://i.imgur.com/TCGQX4l.gif Rather impressive, I think! I'm not sure I understand what I'm seeing in that last link. The video seems to be a loop: OK (but I may be wrong). Stars apparently whizzing by, as the earth rotates: also OK. But what puzzles me is that I can count I think it's 17 points of light, presumably satellites, strung out in a straight line diagonally across the field of view, and not moving, i.e. geostationary. There are two or three other satellites that move slightly back and forth as the loop goes round. But what are the seventeen? Are they seventeen actual satellites all strung out across the sky, which seems rather a lot, or are there really a lot fewer, that re-appear in different but exactly reproducible places, as the loop proceeds? Taking it at face value they are 17 actual satellites. There are satellites every few degrees in some parts of the Clarke Belt. Bill But they might not all reflect the sun's light, at the time of the photo strip. I rather think they don't need to, and sunlight scattered from matt surfaces will suffice. Sunlight accidentally beamed to a point on the earth by a mirrored surface can be seen as a flash even in broad daylight by a well placed observer without optical aid, the best examples are "Iridium Flares". -- Graham. %Profound_observation% |
#9
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On 07/10/2015 21:58, Chris Hogg wrote:
On Wed, 07 Oct 2015 13:47:08 +0100, Bill Wright wrote: Chris Hogg wrote: On Tue, 6 Oct 2015 12:34:04 -0700 (PDT), wrote: Found this picture some of you might like: http://imgur.com/gallery/hky2HYp via https://www.reddit.com/r/space/comme...ographed_last/ Then in the comments section one contributor managed to highlight the satellites: http://i.imgur.com/TCGQX4l.gif Rather impressive, I think! I'm not sure I understand what I'm seeing in that last link. The video seems to be a loop: OK (but I may be wrong). Stars apparently whizzing by, as the earth rotates: also OK. But what puzzles me is that I can count I think it's 17 points of light, presumably satellites, strung out in a straight line diagonally across the field of view, and not moving, i.e. geostationary. There are two or three other satellites that move slightly back and forth as the loop goes round. But what are the seventeen? Are they seventeen actual satellites all strung out across the sky, which seems rather a lot, or are there really a lot fewer, that re-appear in different but exactly reproducible places, as the loop proceeds? Taking it at face value they are 17 actual satellites. There are satellites every few degrees in some parts of the Clarke Belt. Bill So I see. Thanks. I hadn't appreciated how busy it was up there. https://en.wikipedia.org/wiki/List_o...chronous_orbit It would be nice to see the 28.2E location, or some of the other TV satellite locations where there are multiple satellites close together. I really only understood the images when I saw the last one where the geostationary satellites where highlighted. -- Michael Chare |
#10
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On 06/10/2015 20:34, wrote:
Found this picture some of you might like: http://imgur.com/gallery/hky2HYp via https://www.reddit.com/r/space/comme...ographed_last/ Then in the comments section one contributor managed to highlight the satellites: http://i.imgur.com/TCGQX4l.gif Rather impressive, I think! How to the satellites below the Clarke belt stay there? -- Michael Chare |
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