Venus in culture the night sky, and follows a synodic cycle by which it seems to disappear for several says due to its proximity to the sun, then re-appear on the opposite side of the sun and on the other horizon. Depending on the point in its cycle, Venus may appear before sunrise in the morning, or after sunset in the evening, but it never appears to reach the apex of the sky. Therefore, many cultures have recognized it with two names, even if their astronomers realized that it was really one object. In old English, the planet was known as "morgensteorra" (morning
Deep-sky object objects". Since the definition is objects that are non-Solar System and non-stellar the list includes: Deep-sky object Deep-sky object (abbreviated as DSO) is a term designating any astronomical object that is not an individual star or Solar System object (such as Sun, Moon, planet, comet, etc.). The classification is used for the most part by amateur astronomers to denote visually observed faint naked eye and telescopic objects such as star clusters, nebulae and galaxies. This distinction is practical and technical, implying a variety of instruments and techniques appropriate to observation, and does not distinguish the nature of the object itself.