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6th of June 2023
Tidbinbilla rainbow no. 2
The misty rain around the Canberra Deep Space Communication Complex (CDSCC) last month, which produced the rainbow over DSS-43 in yesterday's ADAP, lasted long enough to also create this rainbow across the 26-metre diameter DSS-46. Rainbows are produced by an internal reflection of sunlight within raindrops, and so always appear on the opposite side of the sky from the Sun -- and this is why you don't see rainbows at midday when the sun is overhead. Rainbows are most prominent in the early morning and late afternoon when their arches are higher in the sky. The low arch below indicates the sun was higher in the sky for this image than for yesterday's. (Image credit: @CanberraDSN)

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