The dog days of summer will end on August 11. The dog days of summer (July 3 to August 11) are named after the brightest star, Sirius being in the same part of the sky as the sun. The last supermoon for the rest of the year will also occur on August 11. The annual Perseids meteor shower will peak on August 11. However, the supermoon will make them harder to see. Later on August 14, Saturn will reach its opposition. In the predawn sky on August 19, Mars and Jupiter will converge in the southeast. Also, observe Orion, entirely up over the horizon, below the planet Mars.