Objects in your sky: Deep Sky
by Dominic Ford
Open clusters
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Collinder 50 (mag 1.0) will become visible at around 20:21 (EDT), 20° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 2 hours and 36 minutes after the Sun at 22:16.
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M45 (mag 1.3) will become visible at around 20:24 (EDT), 17° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 2 hours and 31 minutes after the Sun at 22:11.
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M44 (mag 3.1) will become visible at around 20:46 (EDT), 62° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 02:44.
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NGC2232 (mag 4.2) will become visible at around 20:50 (EDT), 22° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 22 minutes after the Sun at 23:02.
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IC4665 (mag 4.2) is visible in the morning sky, becoming accessible around 23:55, when it reaches an altitude of 18° above your eastern horizon. It will then reach its highest point in the sky at 04:36, 54° above your southern horizon. It will be lost to dawn twilight around 04:50, 54° above your southern horizon.
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Caldwell 14 (mag 4.3) will become visible at around 20:50 (EDT), 22° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 21:28 when it dips 18° above your north-western horizon.
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M47 (mag 4.4) will become visible at around 20:50 (EDT), 24° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 55 minutes after the Sun at 23:35.
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NGC6633 (mag 4.6) is visible in the dawn sky, rising at 22:51 (EDT) and reaching an altitude of 54° above the southern horizon before fading from view as dawn breaks at around 04:50.
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IC4756 (mag 4.6) is visible in the dawn sky, rising at 23:06 (EDT) and reaching an altitude of 53° above the southern horizon before fading from view as dawn breaks at around 04:50.
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Globular clusters
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M22 (mag 5.2) is visible in the dawn sky, rising at 00:54 (EDT) and reaching an altitude of 24° above the southern horizon before fading from view as dawn breaks at around 04:50.
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M4 (mag 5.4) is visible between 02:11 and 04:16. It will become accessible at around 02:11, when it rises to an altitude of 20° above your southern horizon. It will reach its highest point in the sky at 03:14, 22° above your southern horizon. It will become inaccessible at around 04:16 when it sinks below 20° above your southern horizon.
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M5 (mag 5.7) is visible in the morning sky, becoming accessible around 21:57, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 02:09, 50° above your southern horizon. It will be lost to dawn twilight around 04:50, 36° above your south-western horizon.
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M13 (mag 5.8) is visible in the morning sky, becoming accessible around 21:23, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 03:32, 85° above your southern horizon. It will be lost to dawn twilight around 04:50, 74° above your western horizon.
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M12 (mag 6.1) is visible in the morning sky, becoming accessible around 23:45, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 03:37, 46° above your southern horizon. It will be lost to dawn twilight around 04:50, 43° above your south-western horizon.
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M3 (mag 6.3) is visible all night. It will become visible at around 20:50 (EDT), 44° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:33, 77° above your southern horizon. It will be lost to dawn twilight at around 04:50, 36° above your western horizon.
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M15 (mag 6.3) is visible in the dawn sky, rising at 01:33 (EDT) and reaching an altitude of 35° above the eastern horizon before fading from view as dawn breaks at around 04:50.
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M92 (mag 6.5) is visible in the morning sky, becoming accessible around 21:36, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 04:07, 88° above your northern horizon. It will be lost to dawn twilight around 04:50, 81° above your western horizon.
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M2 (mag 6.6) is visible in the dawn sky, rising at 02:23 (EDT) – 3 hours and 37 minutes before the Sun – and reaching an altitude of 26° above the south-eastern horizon before fading from view as dawn breaks at around 04:50.
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M10 (mag 6.6) is visible in the morning sky, becoming accessible around 00:04, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 03:47, 44° above your southern horizon. It will be lost to dawn twilight around 04:50, 42° above your southern horizon.
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Galaxies
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M31 (mag 3.4) is visible in the dawn sky, rising at 02:05 (EDT) – 3 hours and 55 minutes before the Sun – and reaching an altitude of 19° above the north-eastern horizon before fading from view as dawn breaks at around 04:50.
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M81 (mag 6.9) is visible all night because it is circumpolar. It will be highest in the sky at dusk, becoming accessible at around 20:50 (EDT), 62° above your northern horizon. It will be lost to dawn twilight at around 04:50, 28° above your northern horizon.
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M101 (mag 7.9) is visible all night. It will become visible at around 20:50 (EDT), 48° above your north-eastern horizon, as dusk fades to darkness. It will be lost to dawn twilight at around 04:50, 49° above your north-western horizon.
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M94 (mag 8.2) is visible all night. It will become visible at around 20:50 (EDT), 58° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:38, 89° above your southern horizon. It will be lost to dawn twilight at around 04:50, 33° above your north-western horizon.
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M51 (mag 8.4) is visible all night. It will become visible at around 20:50 (EDT), 53° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:21, 83° above your northern horizon. It will be lost to dawn twilight at around 04:50, 42° above your north-western horizon.
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M104 (mag 8.6) is visible in the evening sky, becoming accessible around 20:50 (EDT), 26° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:27, 37° above your southern horizon. It will continue to be observable until around 02:33, when it sinks below 21° above your south-western horizon.
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NGC2403 (mag 8.9) is visible all night because it is circumpolar. It will be highest in the sky at dusk, becoming accessible at around 20:50 (EDT), 58° above your north-western horizon. It will be lost to dawn twilight at around 04:50, 18° above your northern horizon.
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Nebulae
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Caldwell 49 (mag 0.0) will become visible at around 20:50 (EDT), 30° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 23:41.
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M8 (mag 5.8) is visible in the dawn sky, rising at 00:23 (EDT) and reaching an altitude of 24° above the southern horizon before fading from view as dawn breaks at around 04:50.
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