Mercury, Venus, Mars, Saturn and Jupiter will be simultaneously
visible to the naked eye for the first time in more than a decade.
spectacle is visible from Wednesday until 20 February, but experts warn
that Mercury will become fainter towards the end of that window.
Experts advise stargazers to begin their viewing 45 minutes before dawn.
display is made possible by the unusual alignment of the five planets
along what's known as the ecliptic plane of their orbits. In practice,
this means the planets lie near the plane of Earth's orbit, projecting
as a line.
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