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Post Info TOPIC: Iridium Flare


L

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RE: Iridium Flare
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The Iridium communication satellites have a peculiar shape with three polished door-sized antennas, 120 apart and at 40 angles with the main bus. The forward antenna faces the direction the satellite is travelling. Occasionally, an antenna reflects sunlight directly down at Earth, creating a predictable and quickly moving illuminated spot on the surface below of about 10 km diameter. To an observer this looks like a bright flash, or flare in the sky, with a duration of a few seconds.
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L

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