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ISS solar transit, Friday 2-Sep
http://www.boltonastro.co.uk/forums/viewtopic.php?f=5&t=189
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Author:  rwilkinson [ Wed Aug 31, 2011 7:39 pm ]
Post subject:  ISS solar transit, Friday 2-Sep

The program is predicting a solar transit of the ISS just after 4:34pm this Friday afternoon, visible from central Bolton:
Attachment:
File comment: Predicted ground-track (between the red lines) of the solar transit
2sep.jpg
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Author:  DRatledge [ Thu Sep 01, 2011 2:27 pm ]
Post subject:  Re: ISS solar transit, Friday 2-Sep

Ross,
Are those time GMT or BST?
Cheers,
Dave

Author:  rwilkinson [ Thu Sep 01, 2011 3:58 pm ]
Post subject:  Re: ISS solar transit, Friday 2-Sep

DRatledge wrote:
Are those time GMT or BST?


They are BST (="daylight saving time") - I manually set a +1 hour offset in the program over the summer months.

Author:  rwilkinson [ Fri Sep 02, 2011 4:20 pm ]
Post subject:  Re: ISS solar transit - missed it by a minute!

After a mostly cloudy day it did start to clear around 4pm, but at 4:34 there was dense cloud in front of the Sun, whereas just 60-sec later it had cleared enough to get this image:
http://www.boltonastro.org.uk/Gallery/displayimage.php?album=55&pos=6

This is the set-up which I used:
Attachment:
File comment: Using the Society's Trust webcam and driven EQ2 mount - only the telescope (and computer) are mine.
webcam1.jpg
webcam1.jpg [ 186 KiB | Viewed 5373 times ]
Attachment:
File comment: This high-tech shade (made from an old cardboard box!) is necessary so that I can see my netbook screen in bright sunlight.
webcam2.jpg
webcam2.jpg [ 180.07 KiB | Viewed 5373 times ]


Then the sky got much clearer from 5pm! :-(

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