Originally Posted by
ameerat42
BTW. The "Focal Length" of the pinhole apparatus is the distance between the two cards.
Roughly 10mm image diameter per 1000mm of separation, depending on the hole.
Actually a 2ple of things Baz:
Do you think we will be able to see the exact moments of C1 and C4?
The times are not longitude dependent but the trajectory will be latitude dependent (barely noticeable perhaps).
I have a person in Bris interested in this, and you're in Canberra. If we're lucky in Sydney it should be interesting to see if latitude makes a noticeable difference of the path of Venus across the sun's disc.
Am.