This page, updated monthly, will let you know some of the things that you can look out for in the night sky.
20 july of Amateur week astronomy
Was Muslim Astronomy the Harbinger of Copernicanism? The first major Arabic work of astronomy is the Zij al-Sindh by al-Khwarizimi. At first glance, the NEB might appear dark gray to your eye, but if you examine it closely at medium to high magnification you'll notice that it's actually a dark rust or even brick red.
Al-Farghani gave revised values for the obliquity of the ecliptic, the precessional movement of the apogees of the Sun and the Moon, and the circumference of the Earth. Note that as it is in low-earth orbit the sighting details vary quite considerably across the UK.