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 09:50, until soon before it sets at 21:29.
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Collinder 50 (mag 1.0) will become visible at around 20:14 (PDT), 12° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 1 hour and 42 minutes after the Sun at 21:19.
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M44 (mag 3.1) will become visible at around 20:37 (PDT), 61° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 01:43.
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M7 (mag 3.3) is visible in the morning sky, becoming accessible around 02:11, when it reaches an altitude of 16° above your south-eastern horizon. It will then reach its highest point in the sky at 04:00, 21° above your southern horizon. It will be lost to dawn twilight around 04:56, 19° above your southern horizon.
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M6 (mag 4.2) is visible in the morning sky, becoming accessible around 01:52, when it reaches an altitude of 18° above your south-eastern horizon. It will then reach its highest point in the sky at 03:47, 23° above your southern horizon. It will be lost to dawn twilight around 04:53, 21° above your southern horizon.
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NGC2232 (mag 4.2) will become visible at around 20:41 (PDT), 19° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 2 hours and 45 minutes after the Sun at 22:22.
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IC4665 (mag 4.2) is visible in the morning sky, becoming accessible around 23:06, when it reaches an altitude of 18° above your eastern horizon. It will then reach its highest point in the sky at 03:53, 61° above your southern horizon. It will be lost to dawn twilight around 04:53, 58° above your south-western horizon.
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M47 (mag 4.4) will become visible at around 20:41 (PDT), 25° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 26 minutes after the Sun at 23:03.
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NGC6633 (mag 4.6) is visible in the morning sky, becoming accessible around 23:49, when it reaches an altitude of 19° above your eastern horizon. It will then reach its highest point in the sky at 04:33, 62° above your southern horizon. It will be lost to dawn twilight around 04:53, 62° above your southern horizon.
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IC4756 (mag 4.6) is visible in the morning sky, becoming accessible around 00:03, when it reaches an altitude of 19° above your eastern horizon. It will then reach its highest point in the sky at 04:45, 61° above your southern horizon. It will be lost to dawn twilight around 04:53, 61° above your southern horizon.
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Globular clusters
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M22 (mag 5.2) is visible in the morning sky, becoming accessible around 02:00, when it reaches an altitude of 20° above your south-eastern horizon. It will then reach its highest point in the sky at 04:43, 32° above your southern horizon. It will be lost to dawn twilight around 04:53, 31° above your southern horizon.
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M4 (mag 5.4) is visible between 00:09 and 04:51. It will become accessible at around 00:09, when it rises to an altitude of 20° above your south-eastern horizon. It will reach its highest point in the sky at 02:30, 29° above your southern horizon. It will become inaccessible at around 04:51 when it sinks below 20° above your south-western horizon.
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M5 (mag 5.7) is visible in the morning sky, becoming accessible around 21:04, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 01:25, 58° above your southern horizon. It will be lost to dawn twilight around 04:53, 31° above your western horizon.
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M13 (mag 5.8) is visible in the morning sky, becoming accessible around 21:00, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 02:48, 87° above your northern horizon. It will be lost to dawn twilight around 04:53, 64° above your western horizon.
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M12 (mag 6.1) is visible in the morning sky, becoming accessible around 22:47, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 02:54, 54° above your southern horizon. It will be lost to dawn twilight around 04:53, 44° above your south-western horizon.
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M3 (mag 6.3) is visible all night. It will become visible at around 20:41 (PDT), 50° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:45, 84° above your southern horizon. It will be lost to dawn twilight at around 04:53, 26° above your western horizon.
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M15 (mag 6.3) is visible in the dawn sky, rising at 00:59 (PDT) and reaching an altitude of 47° above the eastern horizon before fading from view as dawn breaks at around 04:53.
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M55 (mag 6.3) is visible in the dawn sky, rising at 01:18 (PDT) and reaching an altitude of 23° above the southern horizon before fading from view as dawn breaks at around 04:53.
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M62 (mag 6.4) is visible between 01:32 and 04:43. It will become accessible at around 01:32, when it rises to an altitude of 21° above your south-eastern horizon. It will reach its highest point in the sky at 03:08, 25° above your southern horizon. It will become inaccessible at around 04:43 when it sinks below 21° above your southern horizon.
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M92 (mag 6.5) is visible in the morning sky, becoming accessible around 21:20, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 03:23, 80° above your northern horizon. It will be lost to dawn twilight around 04:53, 70° above your north-western horizon.
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M2 (mag 6.6) is visible in the dawn sky, rising at 01:39 (PDT) and reaching an altitude of 37° above the south-eastern horizon before fading from view as dawn breaks at around 04:53.
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M10 (mag 6.6) is visible in the morning sky, becoming accessible around 23:04, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 03:04, 51° above your southern horizon. It will be lost to dawn twilight around 04:53, 43° 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 02:18 (PDT) – 3 hours and 40 minutes before the Sun – and reaching an altitude of 22° above the north-eastern horizon before fading from view as dawn breaks at around 04:54.
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M81 (mag 6.9) is visible all night because it is circumpolar. It will be highest in the sky at dusk, becoming accessible at around 20:41 (PDT), 54° above your northern horizon. It will be lost to dawn twilight at around 04:53, 18° above your northern horizon.
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M83 (mag 7.2) is visible between 22:02 and 01:18. It will become accessible at around 22:02, when it rises to an altitude of 21° above your south-eastern horizon. It will reach its highest point in the sky at 23:40, 26° above your southern horizon. It will become inaccessible at around 01:18 when it sinks below 21° above your southern horizon.
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M101 (mag 7.9) is visible all night. It will become visible at around 20:41 (PDT), 49° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:10, 69° above your northern horizon. It will be lost to dawn twilight at around 04:53, 37° above your north-western horizon.
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M94 (mag 8.2) is visible all night. It will become visible at around 20:41 (PDT), 62° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:54, 82° above your northern horizon. It will be lost to dawn twilight at around 04:53, 22° above your north-western horizon.
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M51 (mag 8.4) is visible all night. It will become visible at around 20:41 (PDT), 55° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:33, 76° above your northern horizon. It will be lost to dawn twilight at around 04:53, 30° above your north-western horizon.
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M104 (mag 8.6) is visible in the evening sky, becoming accessible around 20:41 (PDT), 35° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:43, 44° above your southern horizon. It will continue to be observable until around 02:15, when it sinks below 21° above your south-western horizon.
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NGC2403 (mag 8.9) will become visible at around 20:41 (PDT), 48° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 01:14 when it dips 21° above your north-western horizon.
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Nebulae
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Caldwell 49 (mag 0.0) is visible from soon after it rises, at 10:20, until soon before it sets at 22:53.
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M8 (mag 5.8) is visible in the morning sky, becoming accessible around 01:40, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 04:10, 31° above your southern horizon. It will be lost to dawn twilight around 04:53, 30° above your southern horizon.
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