ISS near Venus
Taken by Szabolcs Nagy on December 17, 2018 @ London
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ISS was quite near to Venus, I assumed I'm on the centerline, but calsky was a bit inaccurate this time. I was 2.5 hours after sunrise, visual magnitude difference between Venus (-4.6) and ISS (-1.0) was relatively large, so it's all about compromises I guess...
Photographer's website:
http://spacestationguys.com
Comments
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Great movie. How much accurate was your position you typed into calsky? Anyway, given the Venus angular size, the error (your position or calsky) would be in the order of not many tens of meters.
Posted by iovane 2018-12-17 16:23:11
Great video! Ive been set up precisely on the center-line trying to get ISS transits of Venus, Jupiter, Mars, and Saturn, and it always turns out to be a near-miss. I think the ISS shifts a little in its orbit so often that its hard to predict with the necessary accuracy for a transit of such a small angular size target.
Posted by NCarlson9721 2018-12-18 11:00:52
Hi guys,
Thanks, I think it was pretty accurate, 95% of the occasions Calsky is spot on correct. But have you noticed lately, google maps isnt appearing as it should, it says developer mode all over the screen.
Dont think it plays any roll in the inaccuracy appeared lately, also the difference wasnt huge. But once I managed to capture a Saturn ISS transit from Gran Canaria, I was on the centerline and it went straight in front of it. So I know from experience, Calsky is very very accurate! :)

Thanks again for your comment Iovane and NCarlson9721!
Posted by wasabee007 2018-12-23 04:15:34
 
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