Jupiter reaches opposition, the point in its orbit where the planet is opposite the sun in our sky. This brings the gas giant to its closest of the year, making it bright and easy to spot in the evening eastern sky,.
That also means, like the full moon, Jupiter rises at sunset and will be visible all night, the brightest object in the sky behind the Sun, Moon, and Venus.
Astronomers measure brightness in magnitude. Smaller numbers are brighter. The magnitude scale is logarithmic with a magnitude 0 object being about 2.5 brighter than a magnitude 1 object.
Jupiter shines at magnitude -2.67 this week, the brightest it will be until October 2034. It will be easy to spot in the eastern evening sky throughout the month,
