A Photographic Survey of Bright Southern Planetary Nebulae
Open Access
- 1 October 1950
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 110 (5) , 429-439
- https://doi.org/10.1093/mnras/110.5.429
Abstract
Twenty-six objects believed to be planetary nebulae with diameters greater than 8 seconds of arc, south of declination –40° a, have been investigated. Descriptions, and photographs of those which definitely are planetary nebulae, are presented. Some comments on the classification of planetary nebulae are offered, and the proportions exhibiting various types of symmetrical form are tabulated.Keywords
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