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 07:56, until soon before it sets at 19:35. Always take extreme caution when trying to make daytime observations of the Moon while the Sun is above the horizon.
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M44 (mag 3.1) will become visible at around 21:03 (PDT), 32° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 52 minutes after the Sun at 23:49.
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M7 (mag 3.3) is visible between 00:17 and 03:55. It will become accessible at around 00:17, when it rises to an altitude of 16° above your south-eastern horizon. It will reach its highest point in the sky at 02:06, 21° above your southern horizon. It will become inaccessible at around 03:55 when it sinks below 16° above your south-western horizon.
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M6 (mag 4.2) is visible between 23:58 and 03:47. It will become accessible at around 23:58, when it rises to an altitude of 18° above your south-eastern horizon. It will reach its highest point in the sky at 01:53, 23° above your southern horizon. It will become inaccessible at around 03:47 when it sinks below 18° above your south-western horizon.
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IC4665 (mag 4.2) is visible in the morning sky, becoming accessible around 21:12, when it reaches an altitude of 18° above your eastern horizon. It will then reach its highest point in the sky at 01:59, 61° above your southern horizon. It will be lost to dawn twilight around 04:29, 45° above your south-western horizon.
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Caldwell 14 (mag 4.3) is visible in the dawn sky, becoming accessible around 03:12 (PDT), when it reaches an altitude of 18° above your north-eastern horizon. It will then reach an altitude of 27° before fading from view as dawn breaks at 04:29.
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NGC6633 (mag 4.6) is visible in the morning sky, becoming accessible around 21:55, when it reaches an altitude of 19° above your eastern horizon. It will then reach its highest point in the sky at 02:39, 62° above your southern horizon. It will be lost to dawn twilight around 04:29, 52° above your south-western horizon.
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IC4756 (mag 4.6) is visible in the morning sky, becoming accessible around 22:09, when it reaches an altitude of 19° above your eastern horizon. It will then reach its highest point in the sky at 02:51, 61° above your southern horizon. It will be lost to dawn twilight around 04:29, 53° above your south-western horizon.
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Globular clusters
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M22 (mag 5.2) is visible in the morning sky, becoming accessible around 00:06, when it reaches an altitude of 20° above your south-eastern horizon. It will then reach its highest point in the sky at 02:49, 32° above your southern horizon. It will be lost to dawn twilight around 04:29, 27° above your south-western horizon.
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M4 (mag 5.4) is visible between 22:15 and 02:57. It will become accessible at around 22:15, when it rises to an altitude of 20° above your south-eastern horizon. It will reach its highest point in the sky at 00:36, 29° above your southern horizon. It will become inaccessible at around 02:57 when it sinks below 20° above your south-western horizon.
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M5 (mag 5.7) is visible in the evening sky, becoming accessible around 21:08 (PDT), 44° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:27, 58° above your southern horizon. It will continue to be observable until around 03:49, 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 21:08 (PDT), 45° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:54, 87° above your northern horizon. It will be lost to dawn twilight at around 04:29, 46° above your western horizon.
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M12 (mag 6.1) is visible all night. It will become visible at around 21:08 (PDT), 25° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 01:00, 54° above your southern horizon. It will be lost to dawn twilight at around 04:29, 29° above your south-western horizon.
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M3 (mag 6.3) is visible in the evening sky, becoming accessible around 21:08 (PDT), 79° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 21:51, 84° above your southern horizon. It will continue to be observable until around 03:17, when it sinks below 21° above your western horizon.
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M15 (mag 6.3) is visible in the dawn sky, rising at 23:05 (PDT) and reaching an altitude of 62° above the south-eastern horizon before fading from view as dawn breaks at around 04:29.
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M55 (mag 6.3) is visible in the morning sky, becoming accessible around 02:27, when it reaches an altitude of 21° above your southern horizon. It will then reach its highest point in the sky at 03:52, 24° above your southern horizon. It will be lost to dawn twilight around 04:29, 24° above your southern horizon.
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M62 (mag 6.4) is visible between 23:38 and 02:49. It will become accessible at around 23:38, when it rises to an altitude of 21° above your south-eastern horizon. It will reach its highest point in the sky at 01:14, 25° above your southern horizon. It will become inaccessible at around 02:49 when it sinks below 21° above your southern horizon.
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M92 (mag 6.5) is visible all night. It will become visible at around 21:08 (PDT), 39° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 01:29, 80° above your northern horizon. It will be lost to dawn twilight at around 04:29, 54° above your north-western horizon.
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M2 (mag 6.6) is visible in the dawn sky, rising at 23:45 (PDT) and reaching an altitude of 50° above the south-eastern horizon before fading from view as dawn breaks at around 04:29.
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M10 (mag 6.6) is visible all night. It will become visible at around 21:08 (PDT), 22° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 01:10, 51° above your southern horizon. It will be lost to dawn twilight at around 04:29, 29° 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 00:24 (PDT) and reaching an altitude of 38° above the north-eastern horizon before fading from view as dawn breaks at around 04:29.
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M33 (mag 5.8) is visible in the dawn sky, rising at 02:07 (PDT) – 3 hours and 32 minutes before the Sun – and reaching an altitude of 24° above the 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 21:08 (PDT), 46° above your northern horizon. It will be lost to dawn twilight at around 04:29, 14° above your northern horizon.
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M83 (mag 7.2) is visible in the evening sky, becoming accessible around 21:08 (PDT), 25° above your southern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 21:46, 26° above your southern horizon. It will continue to be observable until around 23:24, 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 21:08 (PDT), 66° above your north-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:12, 69° above your northern horizon. It will be lost to dawn twilight at around 04:29, 25° above your north-western horizon.
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M94 (mag 8.2) will become visible at around 21:08 (PDT), 82° above your northern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 05:29.
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M51 (mag 8.4) is visible in the evening sky, becoming accessible around 21:08 (PDT), 75° above your northern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 21:39, 76° above your northern horizon. It will continue to be observable until around 03:54, when it sinks below 21° above your north-western horizon.
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M104 (mag 8.6) will become visible at around 21:08 (PDT), 44° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 02:20.
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NGC2403 (mag 8.9) will become visible at around 21:08 (PDT), 34° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 23:20 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 08:26, until soon before it sets at 20:59. 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 in the morning sky, becoming accessible around 23:46, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 02:16, 31° above your southern horizon. It will be lost to dawn twilight around 04:29, 23° above your south-western horizon.
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