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    Articles > July 2021
 
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YEAR BOOKS

Guide to the Night Sky 2021
2021 Guide to the Night Sky

A monthly guide to the night sky in 2021 with star charts, sky calendar, planet data, moon phases, and meteor showers.
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PLANISPHERES

All sky watchers need a planisphere to quickly show the location of stars and constellations for any date and time. Note: Planispheres are designed for specific latitudes so be sure to select one for your latitude.


Guide to the Stars

(5th Edition, Jan. 2013)
A very large 16-inch diameter information-rich planisphere (plastic) for use anywhere between latitude 30° & 60° North. Also available in a Southern Hemisphere edition.
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200+ Customer Reviews

More Planispheres



The Night Sky Planisphere

A very popular 8-inch diameter, two-sided planisphere (plastic) designed to depict the night sky with less distortion than regular planispheres. Available for several latitudes, and in a smaller 5-inch edition.
More info | Buy now
• Only $11.95 •

150+ Customer Reviews

Night Sky Editions
Latitude 20° to 30° North
Latitude 30° to 40° North
Latitude 40° to 50° North
Latitude 50° to 60° North
Southern Hemisphere
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  Sky Calendar -- July 2021
1 Last Quarter Moon at 21:11 UT.
3 Venus 0.35° NNE of Beehive cluster M44 (26° from Sun, evening sky) at 12h UT. Mag. −3.9.
4 Mercury at greatest elongation west (22° from Sun, morning sky) at 20h UT. Mag. 0.5.
5 Moon at apogee (farthest from Earth) at 15h UT (distance 405,341 km; angular size 29.5').
5 Earth at Aphelion (farthest from Sun) at 22h UT. The Sun- Earth distance is 1.016729 a.u. or about 152.1 million km.
Earth at Aphelion (SpaceWeather.com)
Photographic Size Comparison (Anthony Ayiomamitis)
6 Moon near the Pleiades (morning sky) at 4h UT.
The Pleiades (Wikipedia)
6 Moon near Aldebaran at 22h UT (morning sky).
Aldebaran (Wikipedia)
10 New Moon at 1:17 UT. Start of lunation 1219.
10 Moon near Castor at 8h UT (evening sky).
10 Moon near Pollux at 13h UT (evening sky).
11 Moon near Beehive cluster M44 (18° from Sun, evening sky) at 15h UT. The Beehive is a lovely sight in binoculars.
Beehive Cluster (Wikipedia)
M44: The Beehive Cluster (APOD)
12 Moon, Venus and Mars within a circle of diameter 3.6° (evening sky) at 12h UT. Mags. −3.9 and 1.8.
12 Moon near Mars (29° from Sun, evening sky) at 13h UT. Mag. 1.8.
Mars (Wikipedia)
13 Moon near Regulus at 9h UT (evening sky).
Regulus (Wikipedia)
13 Venus 0.47° NNE of Mars (28° from Sun, evening sky) at 14h UT. Mags. −3.9 and 1.8.
13 Mercury 2.2° S of star cluster M35 (19° from Sun, morning sky) at 15h UT. Mag. −0.5.
17 Moon near Spica at 10h UT (evening sky).
Spica (Wikipedia)
17 First Quarter Moon at 10:10 UT.
20 Moon near Antares at 15h UT (evening sky).
Antares (Wikipedia)
21 Moon at perigee (closest to Earth) at 10:24 UT (distance 364,521 km; angular size 32.8').
22 Venus 1.1° NNE of Regulus (31° from Sun, evening sky) at 4h UT. Mags. −3.9 and 1.4.
24 Full Moon at 2:36 UT.
24 Moon near Saturn (midnight sky) at 19h UT. Mag. 0.2.
Saturn (Wikipedia)
26 Moon near Jupiter (morning sky) at 5h UT. Mag. −2.8.
Jupiter (Wikipedia)
30 Mars 0.63° NNE of Regulus (23° from Sun, evening sky) at 2h UT. Mags. 1.8 and 1.4.
31 Last Quarter Moon at 13:17 UT.
All times Universal Time (UT).
  • US Eastern Daylight Time = UT − 4 hours.
  • US Pacific Daylight Time = UT − 7 hours.
  • Australian Eastern Standard Time = UT + 10 hours
  • Singapore Standard Time = UT + 8 hours.

Clear skies till next month!

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