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Caelum: Difference between revisions
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Caelum is bordered by [[Dorado]] and [[Pictor]] to the south, [[Horologium]] and [[Eridanus]] to the east,[[Lepus]] to the north, and [[Columba]] to the west. Covering 125 square degrees, it ranks 81st of the 88 modern constellations in size. It appears prominently in the southern sky during the Southern Hemisphere's summer, and the whole constellation is visible for at least part of the year to observers south of latitude 41°N. | Caelum is bordered by [[Dorado]] and [[Pictor]] to the south, [[Horologium]] and [[Eridanus]] to the east,[[Lepus]] to the north, and [[Columba]] to the west. Covering 125 square degrees, it ranks 81st of the 88 modern constellations in size. It appears prominently in the southern sky during the Southern Hemisphere's summer, and the whole constellation is visible for at least part of the year to observers south of latitude 41°N. | ||
==Deep-sky objects== | |||
Due to its small size and location away from the plane of the Milky Way, Caelum is rather devoid of deep-sky objects, and contains no Messier objects. The only deep-sky object in Caelum to receive much attention is HE0450-2958, an unusual Seyfert galaxy. Originally, the jet's host galaxy proved elusive to find, and this jet appeared to be emanating from nothing.[28] Although it has been suggested that the object is an ejected supermassive black hole,[29] the host is now agreed to be a small galaxy that is difficult to see due to light from the jet and a nearby starburst galaxy.<ref>[http://en.wikipedia.org/wiki/Caelum Caelum]</ref> | |||