Astronomers measure a star’s brightness using the apparent magnitude system, where lower values indicate brighter stars.

Brilliant Jupiter is in our sky for practically the entire night ... approach to the Earth for the next six years. Shining just a trifle less than Sirius, the brightest star in the sky, Mars ...

Venus is particularly bright in the night sky this month, outshining even Sirius, the brightest star. For observers at mid-northern latitudes, the planet remains visible for about four hours after ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show ...

When Jupiter is at opposition, it means that Earth ... the night skies throughout December. The Winter Triangle is formed by three bright stars: Sirius, the brightest star in the night sky in ...

Since Earth's northern axis ... thinking that Polaris is the brightest star in the night sky. It's not. It's merely the 48th brightest. The brightest is Sirius, the “Dog Star,” which rises ...

Jamie Carter is an award-winning reporter who covers the night sky. The fourth planet Mars will soon shine brighter than the night sky’s brightest star—Sirius—but during its entire ...