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 06:44, until soon before it sets at 18:15. Always take extreme caution when trying to make daytime observations of the Moon while the Sun is above the horizon.
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IC4665 (mag 4.2) is visible all night. It will become visible at around 21:52 (EDT), 37° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:43, 53° above your southern horizon. It will be lost to dawn twilight at around 03:36, 36° above your south-western horizon.
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Caldwell 14 (mag 4.3) is visible in the dawn sky, becoming accessible around 00:43 (EDT), when it reaches an altitude of 18° above your north-eastern horizon. It will then reach an altitude of 36° before fading from view as dawn breaks at 03:36.
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NGC6633 (mag 4.6) is visible all night. It will become visible at around 21:52 (EDT), 31° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 01:23, 54° above your southern horizon. It will be lost to dawn twilight at around 03:36, 43° above your south-western horizon.
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IC4756 (mag 4.6) is visible all night. It will become visible at around 21:52 (EDT), 29° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 01:35, 53° above your southern horizon. It will be lost to dawn twilight at around 03:36, 44° above your south-western horizon.
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Globular clusters
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M22 (mag 5.2) is visible between 00:00 and 03:05. It will become accessible at around 00:00, when it rises to an altitude of 20° above your south-eastern horizon. It will reach its highest point in the sky at 01:33, 23° above your southern horizon. It will become inaccessible at around 03:05 when it sinks below 20° above your southern horizon.
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M4 (mag 5.4) is visible between 22:48 and 23:44. It will become accessible at around 22:48, when it rises to an altitude of 20° above your southern horizon. It will reach its highest point in the sky at 23:16, 21° above your southern horizon. It will become inaccessible at around 23:44 when it sinks below 20° above your southern horizon.
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M5 (mag 5.7) is visible in the evening sky, becoming accessible around 21:52 (EDT), 49° above your southern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:11, 49° above your southern horizon. It will continue to be observable until around 02:21, when it sinks below 21° above your western horizon.
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M13 (mag 5.8) is visible all night. It will become visible at around 21:52 (EDT), 69° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:34, 84° above your southern horizon. It will be lost to dawn twilight at around 03:36, 44° above your western horizon.
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M12 (mag 6.1) is visible in the evening sky, becoming accessible around 21:52 (EDT), 39° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:40, 45° above your southern horizon. It will continue to be observable until around 03:29, when it sinks below 21° above your south-western horizon.
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M3 (mag 6.3) will become visible at around 21:52 (EDT), 69° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 04:37.
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M15 (mag 6.3) is visible in the dawn sky, rising at 21:37 (EDT) and reaching an altitude of 57° above the south-eastern horizon before fading from view as dawn breaks at around 03:36.
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M92 (mag 6.5) is visible all night. It will become visible at around 21:52 (EDT), 64° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:13, 89° above your northern horizon. It will be lost to dawn twilight at around 03:36, 53° above your western horizon.
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M2 (mag 6.6) is visible in the dawn sky, rising at 22:29 (EDT) and reaching an altitude of 45° above the southern horizon before fading from view as dawn breaks at around 03:36.
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M10 (mag 6.6) is visible in the evening sky, becoming accessible around 21:52 (EDT), 36° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:50, 43° above your southern horizon. It will continue to be observable until around 03:30, when it sinks below 21° 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 21:58 (EDT) and reaching an altitude of 45° above the eastern horizon before fading from view as dawn breaks at around 03:37.
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M33 (mag 5.8) is visible in the dawn sky, rising at 00:14 (EDT) and reaching an altitude of 31° above the eastern horizon before fading from view as dawn breaks at around 03:36.
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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 21:52 (EDT), 43° above your north-western horizon. It will be lost to dawn twilight at around 03:36, 22° above your northern horizon.
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M101 (mag 7.9) is visible all night. It will become visible at around 21:52 (EDT), 74° above your north-western horizon, as dusk fades to darkness. It will be lost to dawn twilight at around 03:36, 28° above your north-western horizon.
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M94 (mag 8.2) will become visible at around 21:52 (EDT), 66° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 05:22.
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M51 (mag 8.4) will become visible at around 21:52 (EDT), 73° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at --:--.
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M104 (mag 8.6) will become visible at around 21:52 (EDT), 27° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:53.
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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 21:52 (EDT), 30° above your north-western horizon. It will be lost to dawn twilight at around 03:36, 18° 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 07:05, until soon before it sets at 19:48. Always take extreme caution when trying to make daytime observations of the Moon while the Sun is above the horizon.
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M8 (mag 5.8) is visible between 23:55 and 02:04. It will become accessible at around 23:55, when it rises to an altitude of 21° above your southern horizon. It will reach its highest point in the sky at 01:00, 23° above your southern horizon. It will become inaccessible at around 02:04 when it sinks below 21° above your southern horizon.
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