Zisa Corona [SEP] located on astronomical body
Zisa Corona
Zisa Corona is a corona found on the planet Venus at Latitude 12° North, Longitude 221° East. It has a diameter of 850 kilometers, and is the 3rd largest corona on Venus.
It is named for Zisa a German/Nordic harvest goddess and consort of Tyr.
studied Mars extensively.
His most famous astronomical discovery was that the ice caps on Mars are not exactly on the rotational poles of that body. He also recognized (in May 1724) that the corona visible during a solar eclipse belongs to the Sun not to the Moon, and he discovered R Hydrae as a variable star. He also helped with the survey based on the Paris Meridian.
He is also credited for the first observation (1723) of what is usually referred to as Poisson's spot, an observation