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50 Things to see with a Small Telescope
2018 Guide to the Night Sky

A monthly guide to the night sky in 2018 with star charts, sky calendar, planet data, moon phases, and meteor showers.
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  Sky Calendar -- July 2018
4 Mercury 0.4° SSW of Beehive cluster M44 (25° from Sun, evening sky) at 13h UT. Mag. 0.1.
Beehive Cluster (Wikipedia)
M44: The Beehive Cluster (APOD)
6 Last Quarter Moon at 7:52 UT.
6 Earth at Aphelion (farthest from Sun) at 17h UT. The Sun-Earth distance is 1.016696 a.u. or about 152.1 million km.
Earth at Aphelion (SpaceWeather.com)
Photographic Size Comparison (Anthony Ayiomamitis)
10 Venus 1.0° NNE of Regulus (42° from Sun, evening sky) at 5h UT. Mags. −4.1 and 1.4.
10 Moon near Aldebaran (morning sky) at 9h UT.
Aldebaran (Wikipedia)
12 Mercury at greatest elongation east (26° from Sun, evening sky) at 5h UT. Mag. 0.5.
13 New Moon at 2:48 UT. Start of lunation 1182.
13 Partial Eclipse of the Sun at 3:01 UT (greatest). Minor event. Visible from southern Australia and Tasmania. Begins at 1:48, ends at 4:14 UT.
Solar Eclipses: 2011 - 2030 (Mr Eclipse)
Partial Solar Eclipse of 2018 July 13 (GIF)
13 Moon at perigee (closest to Earth) at 8:27 UT (357,341 km; angular size 33.4').
14 Moon near Mercury (26° from Sun, evening sky) at 23h UT. Mag. 0.6.
15 Moon near Regulus (evening sky) at 17h UT.
Regulus (Wikipedia)
16 Moon near Venus (43° from Sun, evening sky) at 4h UT. Mag. −4.1.
19 Moon near Spica (evening sky) at 14h UT.
Spica (Wikipedia)
19 First Quarter Moon at 19:53 UT.
21 Moon near Jupiter (evening sky) at 3h UT. Mag. −2.2.
23 Moon near Antares (evening sky) at 7h UT.
Antares (Wikipedia)
25 Moon near Saturn (evening sky) at 6h UT. Mag. 0.2.
27 Moon at apogee (farthest from Earth) at 6h UT (distance 406,223 km; angular size 29.4').
27 Mars at opposition at 5h UT. Mag. −2.8. At its brightest.
The 2018 Perihelic Appartition of Mars (ALPO)
27 Moon near Mars (evening sky) at 20h UT. Mag. −2.8.
27 Total Eclipse of the Moon begins at 18:24 UT and ends at 22:19 UT. Mid-eclipse at 20:23 UT. Partial phases begin at 17:15 UT and end at 23:29 UT. Moon appears red-orange in color during totality (the color of Earth's sunsets). Visible from South America, Europe, Africa, India, Asia, and Australia. Mars nearby.
Lunar Eclipses: 2011 - 2030 (NASA)
Total Lunar Eclipse of 2018 July 27 (PDF) (NASA)
27 Full Moon at 20:21 UT.
Full Moon Names (Wikipedia)
31 Mars nearest to Earth at 8h UT. Mag. −2.8.
All times Universal Time (UT).
  • USA Eastern Daylight 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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