In astronomy, a conjunction occurs when two astronomical objects or spacecraft appear to be close to each other in the sky.

Mars, Moon and Mercury
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In astronomy, a conjunction occurs when two astronomical objects or spacecraft appear to be close to each other in the sky. This means they have either the same right ascension or the same ecliptic longitude, usually as observed from Earth.

[Source: Wikipedia, https://en.wikipedia.org/wiki/Conjunction_(astronomy)]

Mars (upper left), the Moon and Mercury (between the wires)
Exposure5 sec @ f/4.5
ISO400
CameraNikon D600 [6016 x 4016]
OpticsNikkor 80-400 mm lens at 80mm
FilterNone
GuidingNone
ControllerNone
LocationLower Sackville, Nova Scotia.
Date2020-05-14
Processed in Lightroom