Tonight's Sky, Highlights of the June Sky

Your guide to constellations, deep-sky objects, planets and 
events, Tonight’s Sky, Highlights of the June Sky 
 
 

Evening Planets 
As the Sun slips out of sight, Jupiter appears above the 
western horizon. Your best views of it will be in early June. 
The planet will sink lower and lower as the month 
progresses. 

Turn to the west to find  Jupiter

Turn to the south to find Saturn and Mars. 
 
Use a telescope to get a better look. 
 

Constellations and Deep-Sky Objects 
Turn your gaze upward to find four distinctive constellations. 
 
High overhead lies Boötes, the Herdsman. Find it by looking 
for its prominent kite shape, which was noted by many 
ancient cultures. 

Arcturus is the fourth-brightest star in the night sky. 
 
The star Epsilon Boötis is also known as Izar. In binoculars, 
Izar resolves into one of the finest double stars in the sky. 
The color contrast between the stars is striking.

Just to the left of Boötes lies the Northern Crown, Corona 
Borealis. This lovely circlet of stars represents the wedding 
crown of Ariadne, the daughter of King Minos of Crete. 
 
While the stars are not very bright, their pattern is easy to 
pick out. 

The mythical strongman Hercules is also found high in the 
summer night sky, wielding his mighty weapons. 
 
The constellation is rather dim. Look for its lopsided square 
of four stars, called the Keystone. 
 
The Keystone in Hercules is the “key” to finding one of the 
brightest globular star clusters in the summer night sky. The 
wonderful Hercules Cluster, also known as M13, contains 
about a million stars. 
 
Outside the Keystone lies another magnificent globular 
cluster of stars, M92. 
 
Globular clusters are collections of closely packed, 
gravitationally bound stars. 

Draco, the Dragon, winds his way through the northern sky. 
 
The Dragon’s head is a skewed square of stars. Look for the 
dimmest of the corner stars. In binoculars it resolves into two 
stars, which look like a bright pair of headlights.

Morning Planets 
Venus appears in the early morning sky, peeking over the 
eastern horizon just before sunrise. 
 
A telescope will reveal the planet’s phase. 

Before dawn on June 24th, Venus and the very thin crescent 
Moon make a lovely pair as they rise together into the 
brightening eastern sky. 

http://hubblesite.org/

Ending 
The night sky is always a celestial showcase. Explore its 
wonders from your own backyard. 
 
 
Credits 
Produced by the Space Telescope Science Institute, Office 
of Public Outreach 
Starfield images created with Stellarium 
Mythological constellation forms from Firmamentum 
Sobiescianum sive Uranographia by Johannes Hevelius, 
courtesy of the United States Naval Observatory 
Jupiter image courtesy of Todd Gross 
Saturn image courtesy of John Endreson