Objects in your sky: Deep Sky
by Dominic Ford
Open clusters
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Collinder 50 (mag 1.0) will become visible around 19:47 (EDT), 48° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:13.
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M45 (mag 1.3) will become visible around 19:50 (EDT), 45° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:07.
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M44 (mag 3.1) is visible in the evening sky, becoming accessible around 20:09 (EDT), 63° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 21:24, 68° above your southern horizon. It will continue to be observable until around 03:05, when it sinks below 16° above your western horizon.
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M42 (mag 4.0) will become visible around 20:14 (EDT), 36° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:03.
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NGC2232 (mag 4.2) will become visible around 20:14 (EDT), 41° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:58.
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IC4665 (mag 4.2) is visible in the dawn sky, rising at 00:10 (EDT) and reaching an altitude of 52° above the southern horizon before fading from view as dawn breaks around 05:42.
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Caldwell 14 (mag 4.3) will become visible around 20:14 (EDT), 39° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 23:24 when it dips 18° above your north-western horizon.
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M47 (mag 4.4) is visible in the evening sky, becoming accessible around 20:14 (EDT), 34° above your southern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 20:20, 34° above your southern horizon. It will continue to be observable until around 23:33, when it sinks below 18° above your south-western horizon.
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M41 (mag 4.5) will become visible around 20:14 (EDT), 27° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:16.
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NGC6633 (mag 4.6) is visible in the dawn sky, rising at 00:47 (EDT) and reaching an altitude of 49° above the south-eastern horizon before fading from view as dawn breaks around 05:42.
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IC4756 (mag 4.6) is visible in the dawn sky, rising at 01:02 (EDT) and reaching an altitude of 47° above the south-eastern horizon before fading from view as dawn breaks around 05:42.
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Globular clusters
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M22 (mag 5.2) is visible in the dawn sky, rising at 02:50 (EDT) – 3 hours and 58 minutes before the Sun – and reaching an altitude of 20° above the south-eastern horizon before fading from view as dawn breaks around 05:42.
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M4 (mag 5.4) is visible in the morning sky, becoming accessible around 04:07, when it reaches an altitude of 20° above your southern horizon. It will then reach its highest point in the sky at 05:10, 22° above your southern horizon. It will be lost to dawn twilight around 05:42, 21° above your southern horizon.
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M5 (mag 5.7) is visible in the morning sky, becoming accessible around 23:53, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 04:05, 50° above your southern horizon. It will be lost to dawn twilight around 05:42, 45° above your south-western horizon.
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M13 (mag 5.8) is visible in the morning sky, becoming accessible around 23:19, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 05:28, 85° above your southern horizon. It will be lost to dawn twilight around 05:42, 84° above your south-western horizon.
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M12 (mag 6.1) is visible in the morning sky, becoming accessible around 01:41, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 05:33, 46° above your southern horizon. It will be lost to dawn twilight around 05:42, 46° above your southern horizon.
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M3 (mag 6.3) is visible in the morning sky, becoming accessible around 20:50, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 02:29, 77° above your southern horizon. It will be lost to dawn twilight around 05:42, 48° above your western horizon.
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M15 (mag 6.3) is visible in the dawn sky, rising at 03:29 (EDT) – 3 hours and 19 minutes before the Sun – and reaching an altitude of 24° above the eastern horizon before fading from view as dawn breaks around 05:42.
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M92 (mag 6.5) is visible in the dawn sky, rising at 20:16 (EDT) and reaching an altitude of 85° above the north-eastern horizon before fading from view as dawn breaks around 05:42.
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M10 (mag 6.6) is visible in the dawn sky, rising at 23:55 (EDT) and reaching an altitude of 44° above the southern horizon before fading from view as dawn breaks around 05:42.
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Galaxies
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M31 (mag 3.4) will become visible around 20:13 (EDT), 18° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 46 minutes after the Sun at 22:54.
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M81 (mag 6.9) is visible all night because it is circumpolar. It will be highest in the sky at 22:39, 62° above your northern horizon. At dusk, it will become visible around 20:14 (EDT), 56° above your northern horizon. It will be lost to dawn twilight around 05:42, 32° above your north-western horizon.
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M101 (mag 7.9) is visible all night. It will become visible around 20:14 (EDT), 28° above your north-eastern horizon, as dusk fades to darkness. It will be lost to dawn twilight around 05:42, 58° above your north-western horizon.
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M94 (mag 8.2) is visible all night. It will become visible around 20:14 (EDT), 31° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 01:38, 89° above your southern horizon. It will be lost to dawn twilight around 05:42, 44° above your western horizon.
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M51 (mag 8.4) is visible all night. It will become visible around 20:14 (EDT), 28° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 02:17, 83° above your northern horizon. It will be lost to dawn twilight around 05:42, 53° above your north-western horizon.
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M104 (mag 8.6) is visible between 22:21 and 04:33. It will become accessible around 22:21, when it rises to an altitude of 21° above your south-eastern horizon. It will reach its highest point in the sky at 01:27, 37° above your southern horizon. It will become inaccessible around 04:33 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 20:21, 65° above your northern horizon. At dusk, it will become visible around 20:14 (EDT), 65° above your northern horizon. It will be lost to dawn twilight around 05:42, 21° above your northern horizon.
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Nebulae
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M8 (mag 5.8) is visible in the dawn sky, rising at 02:19 (EDT) and reaching an altitude of 22° above the southern horizon before fading from view as dawn breaks around 05:42.
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