Objektbeschreibungen

Sharpless Katalog (53)

Quellenangaben

309«A Catalogue of Emission Nebulae Near the Galactic Plane» Sharpless, Stewart; Astrophysical Journal, vol. 118, p.362, November 1953; DOI:10.1086/145765; Bibcode:1953ApJ...118..362S
310«A Catalogue of H II Regions» Stewart Sharpless, US Naval Observatory, 1959; DOI:10.1086/190049; Bibcode:1959ApJS....4..257S