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1990ApJ...353..200H - Astrophys. J., 353, 200-204 (1990/April-2)
CCD imagery of planetary nuclei : the properties of the central stars of NGC 2440 and NGC 7027.
HEAP S.R. and HINTZEN P.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Nebulae: Individual NGC Number: NGC 7027 - Nebulae: Individual NGC Number: NGC 2440 - Nebulae: Planetary - Spectrophotometry - Stars: Early-Type
Simbad objects: 2
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