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 15:03, until soon before it sets at 02:43.
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Collinder 50 (mag 1.0) is visible in the evening sky, becoming accessible around 17:54 (PST), 59° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 19:45, 71° above your southern horizon. It will continue to be observable until around 01:30, 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 17:57 (PST), 72° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 19:06, 80° above your southern horizon. It will continue to be observable until around 01:09, when it sinks below 12° above your western horizon.
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NGC2451 (mag 2.8) is visible between 21:42 and 00:23. It will become accessible at around 21:42, when it rises to an altitude of 15° above your southern horizon. It will reach its highest point in the sky at 23:03, 17° above your southern horizon. It will become inaccessible at around 00:23 when it sinks below 15° above your southern horizon.
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M44 (mag 3.1) is visible between 18:28 and 05:35. It will become accessible at around 18:28, when it rises to an altitude of 16° above your eastern horizon. It will reach its highest point in the sky at 00:02, 75° above your southern horizon. It will become inaccessible at around 05:35 when it sinks below 16° above your western horizon.
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M42 (mag 4.0) is visible in the evening sky, becoming accessible around 18:19 (PST), 36° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 20:53, 50° above your southern horizon. It will continue to be observable until around 01:09, when it sinks below 17° above your western horizon.
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NGC2232 (mag 4.2) is visible in the evening sky, becoming accessible around 18:19 (PST), 27° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 21:46, 51° above your southern horizon. It will continue to be observable until around 02:01, 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 02:48 (PST) and reaching an altitude of 35° above the eastern horizon before fading from view as dawn breaks at around 05:48.
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Caldwell 14 (mag 4.3) will become visible at around 18:19 (PST), 65° above your northern horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 00:57 when it dips 18° above your north-western horizon.
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M47 (mag 4.4) is visible between 19:15 and 02:33. It will become accessible at around 19:15, when it rises to an altitude of 18° above your south-eastern horizon. It will reach its highest point in the sky at 22:54, 41° above your southern horizon. It will become inaccessible at around 02:33 when it sinks below 18° above your south-western horizon.
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M41 (mag 4.5) is visible between 18:54 and 01:13. It will become accessible at around 18:54, when it rises to an altitude of 18° above your south-eastern horizon. It will reach its highest point in the sky at 22:04, 35° above your southern horizon. It will become inaccessible at around 01:13 when it sinks below 18° above your south-western horizon.
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NGC6633 (mag 4.6) is visible in the dawn sky, rising at 03:26 (PST) – 3 hours and 23 minutes before the Sun – and reaching an altitude of 28° above the eastern horizon before fading from view as dawn breaks at around 05:48.
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IC4756 (mag 4.6) is visible in the dawn sky, rising at 03:41 (PST) – 3 hours and 8 minutes before the Sun – and reaching an altitude of 25° above the eastern horizon before fading from view as dawn breaks at around 05:48.
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Globular clusters
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M4 (mag 5.4) is visible in the dawn sky, rising at 02:59 (PST) – 3 hours and 50 minutes before the Sun – and reaching an altitude of 23° above the south-eastern horizon before fading from view as dawn breaks at around 05:48.
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M5 (mag 5.7) is visible in the dawn sky, rising at 00:30 (PST) and reaching an altitude of 55° above the south-eastern horizon before fading from view as dawn breaks at around 05:48.
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M13 (mag 5.8) is visible in the dawn sky, rising at 23:58 (PST) and reaching an altitude of 62° above the eastern horizon before fading from view as dawn breaks at around 05:48.
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M12 (mag 6.1) is visible in the dawn sky, rising at 02:10 (PST) and reaching an altitude of 41° above the south-eastern horizon before fading from view as dawn breaks at around 05:48.
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M3 (mag 6.3) is visible in the morning sky, becoming accessible around 23:37, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 05:03, 84° above your southern horizon. It will be lost to dawn twilight around 05:48, 78° above your south-western horizon.
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M92 (mag 6.5) is visible in the dawn sky, rising at 23:55 (PST) and reaching an altitude of 55° above the north-eastern horizon before fading from view as dawn breaks at around 05:48.
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M10 (mag 6.6) is visible in the dawn sky, rising at 02:25 (PST) and reaching an altitude of 38° above the south-eastern horizon before fading from view as dawn breaks at around 05:48.
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Galaxies
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M31 (mag 3.4) will become visible at around 18:19 (PST), 62° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:31.
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M33 (mag 5.8) will become visible at around 18:19 (PST), 71° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:30.
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M81 (mag 6.9) is visible all night because it is circumpolar. It will be highest in the sky at 01:17, 54° above your northern horizon. At dusk, it will become visible at around 18:19 (PST), 26° above your northern horizon. It will be lost to dawn twilight at around 05:48, 39° above your north-western horizon.
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NGC253 (mag 7.1) will become visible at around 18:19 (PST), 22° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 38 minutes after the Sun at 20:55.
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M83 (mag 7.2) is visible in the morning sky, becoming accessible around 03:19, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 04:57, 26° above your southern horizon. It will be lost to dawn twilight around 05:48, 24° above your southern horizon.
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M101 (mag 7.9) is visible in the morning sky, becoming accessible around 22:45, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 05:24, 69° above your northern horizon. It will be lost to dawn twilight around 05:48, 69° above your northern horizon.
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M94 (mag 8.2) is visible in the morning sky, becoming accessible around 22:14, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 04:11, 82° above your northern horizon. It will be lost to dawn twilight around 05:48, 69° above your north-western horizon.
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M51 (mag 8.4) is visible in the morning sky, becoming accessible around 22:36, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 04:50, 76° above your northern horizon. It will be lost to dawn twilight around 05:48, 73° above your north-western horizon.
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M104 (mag 8.6) is visible in the morning sky, becoming accessible around 00:28, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 04:01, 44° above your southern horizon. It will be lost to dawn twilight around 05:48, 37° above your south-western horizon.
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NGC2403 (mag 8.9) is visible all night. It will become visible at around 18:19 (PST), 39° above your north-eastern horizon, as dusk fades to darkness. It will be lost to dawn twilight at around 05:48, 25° 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 15:34, until soon before it sets at 04:06.
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