ISS solar transit, Friday 2-Sep

For discussion on techniques and tips for visual observing
Post Reply
Message
Author
User avatar
rwilkinson
Member
Posts: 1284
Joined: Mon Oct 12, 2009 6:47 pm
Location: Bolton
Contact:

ISS solar transit, Friday 2-Sep

#1 Post by rwilkinson » Wed Aug 31, 2011 7:39 pm

The program is predicting a solar transit of the ISS just after 4:34pm this Friday afternoon, visible from central Bolton:
2sep.jpg
Predicted ground-track (between the red lines) of the solar transit
2sep.jpg (171.69 KiB) Viewed 6552 times

User avatar
DRatledge
Member
Posts: 379
Joined: Mon Oct 12, 2009 8:27 pm
Location: Adlington
Contact:

Re: ISS solar transit, Friday 2-Sep

#2 Post by DRatledge » Thu Sep 01, 2011 2:27 pm

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

User avatar
rwilkinson
Member
Posts: 1284
Joined: Mon Oct 12, 2009 6:47 pm
Location: Bolton
Contact:

Re: ISS solar transit, Friday 2-Sep

#3 Post by rwilkinson » Thu Sep 01, 2011 3:58 pm

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.

User avatar
rwilkinson
Member
Posts: 1284
Joined: Mon Oct 12, 2009 6:47 pm
Location: Bolton
Contact:

Re: ISS solar transit - missed it by a minute!

#4 Post by rwilkinson » Fri Sep 02, 2011 4:20 pm

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/d ... m=55&pos=6

This is the set-up which I used:
webcam1.jpg
Using the Society's Trust webcam and driven EQ2 mount - only the telescope (and computer) are mine.
webcam1.jpg (186 KiB) Viewed 6539 times
webcam2.jpg
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 (180.07 KiB) Viewed 6539 times
Then the sky got much clearer from 5pm! :-(

Post Reply