This is a unique opportunity to buy an apartment with private terrace in a central Barcelona location. This fantastic apartment for sale in Barcelona Old Town is ideally located near the Ramblas and Christopher Columbus statue.The apartment is on the first floor of a building with a lift and measures 57 sqm plus another 45sqm of private terrace, ideal for enjoying a drink in the sunshine.he apartment is on the first floor of a building with a lift and measures 57 sqm plus another 45sqm of private terrace, ideal for enjoying a drink in the sunshine.
The composition of Uranus's atmosphere is different from its bulk, consisting mainly of molecular hydrogen and helium. The helium molar fraction, i.e. the number of helium atoms per molecule of gas, is 0.15 Â± 0.03 in the upper troposphere, which corresponds to a mass fraction 0.26 Â± 0.05.
Internal structure. Uranusâs mass is roughly 14.5 times that of the Earth, making it the least massive of the giant planets. Its diameter is slightly larger than Neptuneâs at roughly four times Earthâs.A resulting density of 1.27 g/cm3 makes Uranus the second least dense planet, after Saturn. This value indicates that it is made primarily of various ices, such as water, ammonia, and methane.The total mass of ice in Uranusâs interior is not precisely known, as different figures emerge depending on the model chosen; it must be between 9.3 and 13.5 Earth masses.Hydrogen and helium constitute only a small part of the total, with between 0.5 and 1.5 Earth masses.he remainder of the non-ice mass (0.5 to 3.7 Earth masses) is accounted for by rocky material. The standard model of Uranusâs structure is that it consists of three layers: a rocky (silicate/iron-nickel) core in the center, an icy mantle in the middle and an outer gaseous hydrogen/helium envelope.