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    Articles > September 2017
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50 Things to see with a Small Telescope
2017 Guide to the Night Sky

A monthly guide to the night sky in 2017 with star charts, sky calendar, planet data, moon phases, and meteor showers.
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Latitude 20° to 30° North
Latitude 30° to 40° North
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The Evening Sky Map

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  Sky Calendar -- September 2017
1 Venus 1.2° SSW of Beehive cluster (morning sky) at 13h UT. Mag. −4.0.
Beehive Cluster (Wikipedia)
M44: The Beehive Cluster (APOD)
6 Moon near SSE of Neptune (178° from Sun, midnight sky) at 5h UT. Mag. +7.8.
6 Full Moon at 7:04 UT.
10 Mercury 0.6° S of Regulus (18° from Sun, morning sky) at 12h UT. Mags. 0.2 and 1.3.
11 Moon near the Pleiades (morning sky) at 20h UT.
The Pleiades (Wikipedia)
12 Jupiter 3.1° NNE of Spica (35° from Sun, evening sky) at 1h UT. Mags. −1.7 and 1.0.
12 Mercury at greatest elongation west (18° from Sun, morning sky) at 10h UT. Mag. 0.6.
12 Moon near Aldebaran (100° from Sun, morning sky) at 12h UT. Occultation visible from Hawaii & western USA.
Occultation of Aldebaran (IOTA)
13 Last Quarter Moon at 6:26 UT.
13 Moon at perigee (closest to Earth) at 16:11 UT (369,800 km; angular size 32.3').
14 Mercury 10.9° ESE of Venus (29° from Sun, morning sky) at 12h UT. Mags. −0.6 and −3.9.
16 Moon near Beehive cluster (morning sky) at 15h UT.
16 Mercury 0.06° NNE of Mars (17° from Sun, morning sky) at 19h UT. Mags. −0.7 and 1.8.
18 Moon, Venus and Regulus within 2.4° circle (25° from Sun, morning sky) at 5h UT. Mags. −3.9 and 1.3. Occultation of Venus visible from Indian Ocean.
Occultation of Venus (IOTA)
18 Moon, Mercury and Mars within 1.8° circle (17° from Sun, morning sky) at 21h UT. Mags. −0.9 and 1.8.
20 Venus 0.5° NNE of Regulus (27° from Sun, morning sky) at 2h UT. Mag. −3.9.
20 New Moon at 5:30 UT. Start of lunation 1172.
Lunation Number (Wikipedia)
22 Moon near Spica (evening sky) at 6h UT.
Spica (Wikipedia)
22 Moon near Jupiter (evening sky) at 10h UT. Mag. −1.7.
Jupiter (Wikipedia)
22 September equinox at 20:02 UT. The time when the Sun reaches the point along the ecliptic where it crosses into the southern celestial hemisphere marking the start of autumn in the Northern Hemisphere and spring in the Southern Hemisphere.
Equinox (Wikipedia)
26 Moon near Antares (evening sky) at 1h UT.
Antares (Wikipedia)
27 Moon near Saturn (evening sky) at 1h UT. Mag. 0.5.
Saturn (Wikipedia)
27 Moon at apogee (farthest from Earth) at 7h UT (distance 404,348 km; angular size 29.6').
28 First Quarter Moon at 2:54 UT.
All times Universal Time (UT).
  • USA Eastern Summer Time = UT − 4 hours.
  • Australian Eastern Standard Time = UT + 10 hours
  • Singapore Standard Time = UT + 8 hours.

Clear skies till next month!

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