We had another double Iridium flare this morning at 4:54. The two flares, at mag -7 and -1, were separated by only 19 seconds so both were visible together. I captured both of them in the 42 second exposure below. This was using the 70-300mm telephoto at 70mm - probably would have been better with the wider angle lens. Will try 50mm next time!
We have another -7 flare tomorrow evening, halfway between Crux and the pointers. Has the potential to be a nice shot as long as the clouds co-operate...
Matt,
I think its the solar panels reflecting the sun as the satellite slowly rotate/spin, not 100% sure but I think that's why they appear to brighten up and wane away again.
