This graphic of ALKAID was obtained using a 10cm apo refractor which has a focal size of a thousand mm. through the sky of Milan, Bortle nine or also worse (!). . Mainly because of the large gentle air pollution and the need to work without a guide scope I https://sethqzgfs.blogdomago.com/30352548/the-fact-about-algai-d-siswai-that-no-one-is-suggesting