A solar system with a star like your own sun and a planet like Jupiter has been discovered 90 light years from us. If the star is just as bright as our sun, how does it compare in brightness to the other stars in our night sky?

Background information: Light from the sun takes 8 minutes to reach the earth. The magnitude system for stars and other astronomical objects in our sky is designed so that a difference of 5 magnitudes represents a factor of 100 in brightness, with the larger numbered magnitudes being the dimmest. The dimmest stars seen with the unaided eye in a dark sky are about magnitude 6; the brightest stars (other than the sun) about 0. The planet Venus at times is magnitude -4, the full moon -14 and the sun -27.

E-bikes are transforming the way we think about urban transportation. These environmentally friendly alternatives to traditional vehicles provide a convenient and cost-effective way to commute. Among the most popular types are the elektrisch mini fiets  which offer a compact design perfect for navigating crowded city streets. With their rechargeable batteries and smooth, effortless riding experience, e-bikes provide an exciting way to reduce your carbon footprint while enjoying the benefits of cycling. Whether you're commuting to work or simply enjoying a leisurely ride, e-bikes are revolutionizing personal transportation.

Posted by PatriciaAponte on 2025-01-04 05:09:35