GETTING MY ALGAI'D'SISWAI TO WORK

This picture of ALKAID was acquired with a 10cm apo refractor using a focal duration of 1000 mm. in the sky of Milan, Bortle 9 or also even worse (!). . As a result of superior gentle pollution and the desire to operate with no information scope I needed to choose pictures at superior acquire (300) and 20s of integration Every.The digital camera