Objects in your sky: Planets
by Dominic Ford
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The Moon is 17 days old, waning gibbous, and is approaching last quarter. From Cambridge, it is visible in the morning sky, becoming accessible around 22:23, when it reaches an altitude of 11° above your south-eastern horizon. It will then reach its highest point in the sky at 02:01, 28° above your southern horizon. It will be lost to dawn twilight around 04:55, 14° above your south-western horizon.
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Mercury is visible as an evening object, having recently passed greatest elongation east. From Cambridge, however, it is not observable – it will reach its highest point in the sky during daytime and is no higher than 1° above the horizon at dusk.
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Venus is visible as a morning object, having recently passed greatest elongation west. From Cambridge, it is visible in the dawn sky, rising at 02:30 (EDT) – 2 hours and 45 minutes before the Sun – and reaching an altitude of 24° above the eastern horizon before fading from view as dawn breaks at around 04:55.
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Mars is currently an early evening object, now receding into evening twilight. From Cambridge, it will become visible at around 21:16 (EDT), 16° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 2 hours and 30 minutes after the Sun at 22:51.
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Jupiter recently passed behind the Sun at solar conjunction. From Cambridge, it is not observable – it will reach its highest point in the sky during daytime and is no higher than 5° above the horizon at dawn.
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Saturn is currently emerging from behind the Sun. From Cambridge, it is visible in the dawn sky, rising at 23:33 (EDT) and reaching an altitude of 44° above the southern horizon before fading from view as dawn breaks at around 04:31.
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Uranus recently passed behind the Sun at solar conjunction. From Cambridge, it is not observable – it will reach its highest point in the sky during daytime and is no higher than 19° above the horizon at dawn.
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Neptune is currently emerging from behind the Sun. From Cambridge, it is visible in the dawn sky, rising at 23:29 (EDT) and reaching an altitude of 41° above the south-eastern horizon before fading from view as dawn breaks at around 03:50.
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