Observations and Models of the ‘Helix’ Nebula NGC 7293

• 1 January 1989
• book chapter
• Published by Springer Nature
• p. 223
• https://doi.org/10.1007/978-94-009-0865-9_94

Abstract

Keywords

• MODELS
• STRUCTURE
• SPECTRA
• NEBULA
• IPCS
• RADIAL
• MILLER
• NEUTRAL
• NGC
• Λ6300