Astronomical objects discovered in 1781

Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which astronomy calls "ice" or volatiles. The planet's atmosphere has a complex layered cloud structure and has the lowest minimum temperature () of all the Solar System's planets. It has a marked axial tilt of 82.23° with a retrograde rotation period of 17 hours and 14 minutes. This means that in an 84-Earth-year orbital period around the Sun, its poles get around 42 years of continuous sunlight, followed by 42 years

Unbarred spiral galaxy in the constellation Virgo

spiral galaxy in the constellation Ursa Major

galaxy in the Virgo Galactic Cluster

Spiral galaxy in the constellation Canes Venatici

planetary nebula in the constellation Ursa Major

elliptical or lenticular galaxy in the constellation Virgo

Spiral galaxy in the constellation Coma Berenicies

Spiral galaxy in the constellation Canes Venatici

galaxy in the constellation Coma Berenices

Spiral galaxy in the constellation Virgo

Barred spiral galaxy in the constellation Leo

galaxy

galaxy

galaxy in the constellation Virgo

Galaxy

open cluster in the constellation Cassiopeia

Galaxy

elliptical or lenticular galaxy in the constellation Coma Berenices

globular star cluster

galaxy

open cluster

spiral galaxy in the constellation Ursa Major

Galaxy

spiral galaxy in the constellation Ursa Major

galaxy in the constellation Canes Venatici

barred spiral galaxy in the constellation of Ursa Major

lenticular galaxy in the constellation Draco