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The first edition was published in 1953 with 142 objects (Sh1), and the second and final version was published by US astronomer Stewart Sharpless in 1959 with 312 objects. Sharpless also includes some planetary nebulae and supernova remnants , in addition to H II regions.
Simeis 147, also known as the Spaghetti Nebula, SNR G180.0-01.7 or Sharpless 2-240, is a supernova remnant (SNR) in the Milky Way, straddling the border between the constellations Auriga and Taurus. It was discovered in 1952 at the Crimean Astrophysical Observatory by Grigory Shajn and his team using a Schmidt camera and a narrowband filter ...
Sh 2-155 is an ionized H II region with ongoing star formation activity, [1] at an estimated distance of 725 parsecs (2400 light-years) from Earth. [2] [3] Sh 2-155 [4] was first noted as a galactic emission nebula in 1959 in the extended second edition of the Sharpless catalogue, [5] being a part of the much larger Cep OB3 Association. [5]
Karl Barry Sharpless (born April 28, 1941) is an American stereochemist.He is a two-time Nobel laureate in Chemistry known for his work on stereoselective reactions and click chemistry.
In addition Corey reasoned that steric repulsions in the octahedral intermediate would disfavor the [2+2] pathway. Osmium tetroxide dihydroxylation proposed and correct mechanism. The next ten years saw numerous publications by both Corey and Sharpless, each supporting their own version of the mechanism.
Sharples also fended off 23 intellectual property infringement lawsuits from DeLaval between 1890 and 1919. With his wealth, he built a mansion called Greystone Hall. He was a long-time trustee of Swarthmore College and co-founded the Farmers and Mechanics' Trust Company in West Chester. [1] [3] [2] Sharples retired in 1925.
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