Popular Post +Ibbo Posted February 13, 2017 Popular Post Share Posted February 13, 2017 (edited) Probably the 2nd worst solar ISS transit,the first being the one I did last year.The seeing today was rather wobbly to say the least,but there was no cloud this time.Shown at 1/3 speed Edited February 13, 2017 by Ibbo +RonC, +TasKiNG, +Graham and 4 others 7 Link to comment Share on other sites More sharing options...
+Graham Posted February 14, 2017 Share Posted February 14, 2017 That's awesome Steve. +Ibbo 1 Link to comment Share on other sites More sharing options...
Tweedledee Posted February 14, 2017 Share Posted February 14, 2017 Very nice Steve? There must be a very narrow band across the earth where each particular ISS transit is visible. How narrow is this band as I can't be bothered to do the trigonometry? Would I be right in thinking that if you were only about 5 mile north or south of your position, the transit would not occur? +Ibbo 1 Link to comment Share on other sites More sharing options...
Tweedledee Posted February 14, 2017 Share Posted February 14, 2017 Think these are the rough figures... Since the ISS is orbiting about 403km above the earth and the sun is half a degree across, then... tan(0.5)* 403 = 3.5km So it looks like the band is a maximum of about 3.5 kilometres wide on the earth. Did you calculate the time of transit from your location Steve? +Ibbo 1 Link to comment Share on other sites More sharing options...
+Ibbo Posted February 14, 2017 Author Share Posted February 14, 2017 3 hours ago, Tweedledee said: Think these are the rough figures... Since the ISS is orbiting about 403km above the earth and the sun is half a degree across, then... tan(0.5)* 403 = 3.5km So it looks like the band is a maximum of about 3.5 kilometres wide on the earth. Did you calculate the time of transit from your location Steve? I use Calc Sky Link to comment Share on other sites More sharing options...
Smithysteve Posted February 14, 2017 Share Posted February 14, 2017 An interesting capture Steve!? You did well to catch it! ? and the Sun looks good too... +Ibbo 1 Link to comment Share on other sites More sharing options...
+Ibbo Posted February 14, 2017 Author Share Posted February 14, 2017 Thanks for the kind words Link to comment Share on other sites More sharing options...
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