This Month, Red Mars and Blue Regulus
The night sky in the month of June will be a beautiful sight for astronomers, as well as ordinary citizens. The red planet Mars, and the blue star Regulus in the position closest this month will appear as a double star that shines brightly in the western sky.
Between June 2rd to 10th, Mars and Regulus is 2.5 degrees to one another. Conjunctions (closest distance between two celestial bodies) will occur on June 6, when Mars is only 0.8 degrees from Regulus. On the night after that, the distance will be 0.9 degrees.
Mars will shine at magnitude 1.2, which means a little brighter than Regulus at 1.34 magnitude (the greater the score the less bright).
Earlier this month, Mars moves into the direction of the constellation Leo, where Regulus-star 250 million years old and is 79 light years from Earth-located. In late July, Mars will be in the southern tail of the Lion (Leo), near the location of Denebola star. Then in September, Mars will miss his brilliance up to magnitude 1.5 when the distance is 322 million kilometers away from Earth.
With the naked eye and with binoculars, you can easily distinguish the Planet Mars and the star Regulus. Mars, although called the red planet, will appear orange-gold, while the bluish-white star Regulus shine due to fusion of hydrogen into helium in its core.
If you want to measure distances in space you can use our fists as a sextant. You are faced with a fist to the sky to show a distance of about 10 degrees arc in the sky.

