Filaments of the Helix Nebula

• 1 January 1968
• book chapter
• Published by Springer Nature
• p. 256-258
• https://doi.org/10.1007/978-94-010-3473-9_36

Abstract

Keywords

• THIRTY YEARS
• HELIX NEBULA
• INCH TELESCOPE
• NEBULA THIRTY
• NEBULA EXTREMELY
• RADIAL FILAMENTS