Imagens - Lugares lindos do Porto - Torre dos Clérigos

Torre dos Clérigos, a torre mais alta de Portugal, construída pelo famoso arquiteto Nicolau Nasoni. Subir os aproximadamente 240 degraus da torre e ver toda a cidade lá do alto, vale mesmo a pena!

Astronomy picture of the day - 2017 May 24 - NGC 4565: Galaxy on Edge

NGC 4565: Galaxy on Edge 
Image Credit & Copyright: Lóránd Fényes

Explanation: Is our Galaxy this thin? We believe so. Magnificent spiral galaxy NGC 4565 is viewed edge-on from planet Earth. Also known as the Needle Galaxy for its narrow profile, bright NGC 4565 is a stop on many telescopic tours of the northern sky, in the faint but well-groomed constellation Coma Berenices. This sharp, colorful image reveals the galaxy's bulging central core cut by obscuring dust lanes that lace NGC 4565's thin galactic plane. An assortment of other background galaxies is included in the pretty field of view, with neighboring galaxy NGC 4562 at the upper left. NGC 4565 itself lies about 40 million light-years distant and spans some 100,000 light-years. Easily spotted with small telescopes, sky enthusiasts consider NGC 4565 to be a prominent celestial masterpiece Messier missed.