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 16:26, until soon before it sets at 04:05.
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Collinder 50 (mag 1.0) is visible in the evening sky, becoming accessible around 17:36 (PST), 39° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 21:08, 71° above your southern horizon. It will continue to be observable until around 02:52, when it sinks below 11° above your western horizon.
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M45 (mag 1.3) is visible in the evening sky, becoming accessible around 17:39 (PST), 51° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 20:28, 80° above your southern horizon. It will continue to be observable until around 02:31, when it sinks below 12° above your western horizon.
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NGC2451 (mag 2.8) is visible between 23:09 and 01:50. It will become accessible at around 23:09, when it rises to an altitude of 15° above your southern horizon. It will reach its highest point in the sky at 00:29, 17° above your southern horizon. It will become inaccessible at around 01:50 when it sinks below 15° above your southern horizon.
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M44 (mag 3.1) is visible in the morning sky, becoming accessible around 19:51, when it reaches an altitude of 16° above your eastern horizon. It will then reach its highest point in the sky at 01:24, 75° above your southern horizon. It will be lost to dawn twilight around 05:56, 28° above your western horizon.
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M42 (mag 4.0) is visible in the evening sky, becoming accessible around 18:01 (PST), 18° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:16, 50° above your southern horizon. It will continue to be observable until around 02:32, when it sinks below 17° above your western horizon.
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NGC2232 (mag 4.2) is visible between 18:53 and 03:24. It will become accessible at around 18:53, when it rises to an altitude of 18° above your eastern horizon. It will reach its highest point in the sky at 23:08, 51° above your southern horizon. It will become inaccessible at around 03:24 when it sinks below 18° above your western horizon.
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IC4665 (mag 4.2) is visible in the dawn sky, rising at 04:11 (PST) – 2 hours and 45 minutes before the Sun – and reaching an altitude of 20° above the eastern horizon before fading from view as dawn breaks at around 05:52.
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Caldwell 14 (mag 4.3) is visible all night. It will become visible at around 18:01 (PST), 64° above your northern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 19:01, 66° above your northern horizon. It will continue to be observable until around 02:20, when it sinks below 18° above your north-western horizon.
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M47 (mag 4.4) is visible between 20:41 and 04:00. It will become accessible at around 20:41, when it rises to an altitude of 18° above your south-eastern horizon. It will reach its highest point in the sky at 00:21, 41° above your southern horizon. It will become inaccessible at around 04:00 when it sinks below 18° above your south-western horizon.
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M41 (mag 4.5) is visible between 20:16 and 02:36. It will become accessible at around 20:16, when it rises to an altitude of 18° above your south-eastern horizon. It will reach its highest point in the sky at 23:26, 35° above your southern horizon. It will become inaccessible at around 02:36 when it sinks below 18° above your south-western horizon.
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Globular clusters
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M5 (mag 5.7) is visible in the dawn sky, rising at 01:53 (PST) and reaching an altitude of 45° above the south-eastern horizon before fading from view as dawn breaks at around 05:52.
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M13 (mag 5.8) is visible in the dawn sky, rising at 01:20 (PST) and reaching an altitude of 47° above the eastern horizon before fading from view as dawn breaks at around 05:52.
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M12 (mag 6.1) is visible in the dawn sky, rising at 03:32 (PST) – 3 hours and 24 minutes before the Sun – and reaching an altitude of 27° above the south-eastern horizon before fading from view as dawn breaks at around 05:52.
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M3 (mag 6.3) is visible in the dawn sky, rising at 22:56 (PST) and reaching an altitude of 80° above the south-eastern horizon before fading from view as dawn breaks at around 05:52.
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M15 (mag 6.3) will become visible at around 18:01 (PST), 33° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 50 minutes after the Sun at 20:48.
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M92 (mag 6.5) is visible in the dawn sky, rising at 01:17 (PST) and reaching an altitude of 41° above the north-eastern horizon before fading from view as dawn breaks at around 05:52.
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M2 (mag 6.6) will become visible at around 18:01 (PST), 26° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 18 minutes after the Sun at 20:16.
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M10 (mag 6.6) is visible in the dawn sky, rising at 03:48 (PST) – 3 hours and 8 minutes before the Sun – and reaching an altitude of 24° above the south-eastern horizon before fading from view as dawn breaks at around 05:52.
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Galaxies
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M31 (mag 3.4) will become visible at around 18:01 (PST), 79° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 01:54.
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M33 (mag 5.8) is visible in the evening sky, becoming accessible around 18:01 (PST), 85° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 18:15, 86° above your southern horizon. It will continue to be observable until around 23:48, when it sinks below 21° above your north-western horizon.
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M81 (mag 6.9) is visible all night because it is circumpolar. It will be highest in the sky at 02:39, 54° above your northern horizon. At dusk, it will become visible at around 18:01 (PST), 19° above your northern horizon. It will be lost to dawn twilight at around 05:52, 46° above your north-western horizon.
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NGC253 (mag 7.1) will become visible at around 18:01 (PST), 30° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 22:17.
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M83 (mag 7.2) is visible in the dawn sky, rising at 01:48 (PST) and reaching an altitude of 25° above the southern horizon before fading from view as dawn breaks at around 05:52.
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M101 (mag 7.9) is visible in the dawn sky, rising at 19:49 (PST) and reaching an altitude of 67° above the northern horizon before fading from view as dawn breaks at around 05:52.
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M94 (mag 8.2) is visible in the morning sky, becoming accessible around 23:36, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 05:34, 82° above your northern horizon. It will be lost to dawn twilight around 05:52, 82° above your north-western horizon.
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M51 (mag 8.4) is visible in the dawn sky, rising at 20:59 (PST) and reaching an altitude of 76° above the northern horizon before fading from view as dawn breaks at around 05:52.
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M104 (mag 8.6) is visible in the morning sky, becoming accessible around 01:51, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 05:23, 44° above your southern horizon. It will be lost to dawn twilight around 05:52, 43° above your southern horizon.
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NGC2403 (mag 8.9) is visible all night. It will become visible at around 18:01 (PST), 29° above your north-eastern horizon, as dusk fades to darkness. It will be lost to dawn twilight at around 05:52, 33° 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 16:56, until soon before it sets at 05:29.
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