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Old 26-05-2014, 11:35 PM   #182
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Arrow Mother Bird To Mission Control

The Engraved Hourglass Nebula (also known as MyCn 18) is a young planetary nebula situated in the southern constellation Musca about 8,000 light-years away from Earth. It was discovered by Annie Jump Cannon and Margaret W. Mayall during their work on an extended Henry Draper Catalogue (the catalogue was built between 1918 and 1924). At the time, it was designated simply as a small faint planetary nebula. Much improved telescopes and imaging techniques allowed the hourglass shape of the nebula to be discovered by Raghvendra Sahai and John Trauger of the Jet Propulsion Laboratory on January 18, 1996. It is conjectured that MyCn 18's hourglass shape is produced by the expansion of a fast stellar wind within a slowly expanding cloud which is denser near its equator than its poles.. The formation of the shape of the inner "eye" is not yet fully understood...

When binary minor planets are similar in size, they may be called "binary companions" instead of referring to the smaller body as a satellite.. Good examples of true binary companions are the 90 Antiope and the 79360 Sila–Nunam systems..The 2 components are named after Inuit deities.. Sila "spirit" is the Inuit god of the sky, weather, and life force. Nunam "earth" is the Earth goddess, in some traditions Sila's wife. Nunam created the land animals and, in some traditions, the Inuit people (in other traditions Sila created the first people out of wet sand).. Sila breathed life into the Inuit... I shall put in telegram: "All postings cancelled.. Whole area covered with Bubonic plague, and put INto gelatine"..RIght lovely boys, let's have a look. Oehhhhh, very good. Very artistic...

Last edited by lightgiver; 27-05-2014 at 02:35 AM.
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