Objects in your sky: Deep Sky
by Dominic Ford
Open clusters
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NGC1977 (mag 0.0) is visible from soon after it rises, at 10:09, until soon before it sets at 21:39.
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Collinder 50 (mag 1.0) will become visible at around 20:22 (EDT), 14° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 2 hours and 11 minutes after the Sun at 21:50.
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M44 (mag 3.1) will become visible at around 20:48 (EDT), 57° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 02:18.
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IC4665 (mag 4.2) is visible in the morning sky, becoming accessible around 23:26, when it reaches an altitude of 18° above your eastern horizon. It will then reach its highest point in the sky at 04:07, 53° above your southern horizon. It will be lost to dawn twilight around 04:28, 52° above your southern horizon.
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Caldwell 14 (mag 4.3) is visible in both the dusk and dawn skies. In the evening, it will become visible at around 20:53 (EDT), 20° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 21:12 when it dips 18° above your north-western horizon. At 04:07, it will return to an altitude of 18° above your north-eastern horizon, and reach an altitude of 20° before fading from view as dawn breaks at around 04:28.
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M47 (mag 4.4) will become visible at around 20:53 (EDT), 19° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 25 minutes after the Sun at 23:04.
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NGC6633 (mag 4.6) is visible in the dawn sky, rising at 22:21 (EDT) and reaching an altitude of 53° above the southern horizon before fading from view as dawn breaks at around 04:28.
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IC4756 (mag 4.6) is visible in the dawn sky, rising at 22:36 (EDT) and reaching an altitude of 52° above the southern horizon before fading from view as dawn breaks at around 04:28.
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Globular clusters
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M22 (mag 5.2) is visible in the dawn sky, rising at 00:29 (EDT) and reaching an altitude of 23° above the southern horizon before fading from view as dawn breaks at around 04:28.
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M4 (mag 5.4) is visible between 02:17 and 03:12. It will become accessible at around 02:17, when it rises to an altitude of 20° above your southern horizon. It will reach its highest point in the sky at 02:45, 21° above your southern horizon. It will become inaccessible at around 03:12 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 21:29, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 01:40, 49° above your southern horizon. It will be lost to dawn twilight around 04:28, 34° above your south-western horizon.
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M13 (mag 5.8) is visible all night. It will become visible at around 20:53 (EDT), 22° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 03:03, 84° above your southern horizon. It will be lost to dawn twilight at around 04:28, 72° above your western horizon.
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M12 (mag 6.1) is visible in the morning sky, becoming accessible around 23:18, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 03:08, 45° above your southern horizon. It will be lost to dawn twilight around 04:28, 42° above your south-western horizon.
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M3 (mag 6.3) is visible all night. It will become visible at around 20:53 (EDT), 49° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:04, 76° above your southern horizon. It will be lost to dawn twilight at around 04:28, 35° above your western horizon.
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M15 (mag 6.3) is visible in the dawn sky, rising at 01:01 (EDT) and reaching an altitude of 36° above the eastern horizon before fading from view as dawn breaks at around 04:28.
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M92 (mag 6.5) is visible in the morning sky, becoming accessible around 21:01, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 03:38, 89° above your northern horizon. It will be lost to dawn twilight around 04:28, 80° above your western horizon.
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M2 (mag 6.6) is visible in the dawn sky, rising at 01:53 (EDT) – 3 hours and 49 minutes before the Sun – and reaching an altitude of 26° above the south-eastern horizon before fading from view as dawn breaks at around 04:28.
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M10 (mag 6.6) is visible in the morning sky, becoming accessible around 23:38, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 03:18, 43° above your southern horizon. It will be lost to dawn twilight around 04:28, 40° above your south-western horizon.
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Galaxies
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M31 (mag 3.4) is visible in the dawn sky, rising at 01:23 (EDT) and reaching an altitude of 21° above the north-eastern horizon before fading from view as dawn breaks at around 04:29.
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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 20:53 (EDT), 62° above your northern horizon. It will be lost to dawn twilight at around 04:28, 29° above your northern horizon.
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M101 (mag 7.9) is visible all night. It will become visible at around 20:53 (EDT), 54° above your north-eastern horizon, as dusk fades to darkness. It will be lost to dawn twilight at around 04:28, 49° above your north-western horizon.
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M94 (mag 8.2) is visible all night. It will become visible at around 20:53 (EDT), 64° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:08, 88° above your southern horizon. It will be lost to dawn twilight at around 04:28, 33° above your north-western horizon.
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M51 (mag 8.4) is visible all night. It will become visible at around 20:53 (EDT), 59° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:47, 85° above your northern horizon. It will be lost to dawn twilight at around 04:28, 42° above your north-western horizon.
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M104 (mag 8.6) is visible in the evening sky, becoming accessible around 20:53 (EDT), 28° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:58, 36° above your southern horizon. It will continue to be observable until around 01:58, 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 20:53 (EDT), 56° above your north-western horizon. It will be lost to dawn twilight at around 04:28, 19° above your northern horizon.
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Nebulae
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Caldwell 49 (mag 0.0) is visible from soon after it rises, at 10:29, until soon before it sets at 23:13.
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M8 (mag 5.8) is visible in the morning sky, becoming accessible around 03:20, when it reaches an altitude of 21° above your southern horizon. It will then reach its highest point in the sky at 04:24, 23° above your southern horizon. It will be lost to dawn twilight around 04:28, 23° above your southern horizon.
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