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  • October 9, 2017

Planets visible to the naked eye - October 9, 2017

  • Rio Tinto Alcan Planetarium
Photo: Sophie Desrosiers

From October 9 to 23, 2017

Mercury is too close to the Sun and is not currently observable. The tiny planet passed behind the Sun (superior conjunction) on October 8. It will gradually reappear in the evening sky in early November.

Venus is the bright Morning Star, shining above the eastern horizon at the very end of the night and at dawn. Venus is slowly sinking back toward the Sun, and now rises less than 2 hours before our daytime star. The lunar crescent will be near Venus on the mornings of October 17 and 18.

Mars is slowly pulling away from the sun’s glare and now rises 2 ½ hours before our star. You’ll find the Red Planet at the end of the night and at dawn, a few degrees above dazzling Venus in the eastern sky. The lunar crescent will hang just one degree to the left of Mars on the morning of October 17.

Jupiter vanishes in the sun’s glare at sunset. The Giant Planet will pass behind the Sun (conjunction) on October 26, and will gradually reappear at dawn during the second week of November.

Saturn appears at dusk, less than 20 degrees above the south-southwest horizon, and vanishes in the southwest before 9:00 p.m. The crescent moon passes near the Ringed Planet on the evenings of October 23 and 24.

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