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The Engraved Hourglass Nebula (also known as MyCn 18) is a young planetary nebula in the southern constellation Musca about 8,000 light-years 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).
From our unique collection of Rings, this piece is offered for sale online by Owl's Roost Antiques. Global shipping is available. Finely made ring with clean classic lines featuring a South Sea Pearl center with interchanging diamond and onyx stripes mounted in 18k yellow gold.he edgy design of this dome ring from the Superstud collection by Stephen Webster will put a little punk into your style. The piece is created in polished sterling silver with the spiky look of triangle-shaped studs.