A pair of nearly simultaneous and parallel Iridium satellite flares, on October 9, 2017, as they descended into the north. The left or westerly flare
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Contributor:
Alan Dyer / VWPics / Alamy Stock PhotoImage ID:
PRK01WFile size:
55.7 MB (1.8 MB Compressed download)Releases:
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5400 x 3605 px | 45.7 x 30.5 cm | 18 x 12 inches | 300dpiDate taken:
9 October 2017More information:
A pair of nearly simultaneous and parallel Iridium satellite flares, on October 9, 2017, as they descended into the north. The left or westerly flare was much brighter and with a sharp rise and fall in brightness. While it was predicted to be mag. -4.4 I think it got much brighter, perhaps mag -7, but very briefly. The right flare was predicted to be , ag. -3.3 which was about correct. These are Iridium 90 (left) and Iridium 50 (right). I used GoSatWatch app to look up the predictions and satellite identities. Several other satellite trails are also in the picture. This is a stack of 40+ exposures each, 2 seconds at 1-second intervals, with the Sigma 24mm lens at f/1.4 and Nikon D750 at ISO 6400.