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The Henry Draper catalogue Extension is an extension to the famous Henry Draper Catalogue, a collection of positional and spectroscopic data about hundreds of thousands of stars.

It can be recognized by the prefix HDE, followed by a number indicating the star's position in the catalogue.

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Complete Soundtrack Discography of American Graffiti

... You're Sixteen— You're Beautiful[?] (and You're Mine) by Johnny Burnette Love Potion No. 9[?] by The Clovers[?] Since I Don't Have You[?] by The ...