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HD 11660


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Planetary nebulae with close binary central stars
The observational record concerning planetary nebulae with close binarynuclei is surveyed, in light of a model for the formation of suchnebulae which predicts a characteristic, nonspherical morphology.Although agreement is found between the morphological prediction of themodel and the observed shapes of M2-9, NGC 6164-5, and MZ 3, cases arefound in which different observations yield different results withrespect to central star variability.

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观测天体数据

星座:白羊座
右阿森松:01h54m46.57s
赤纬:+17°33'08.9"
视星:8.474
距离:413.223 天文距离
右阿森松适当运动:-2.4
赤纬适当运动:6.4
B-T magnitude:8.816
V-T magnitude:8.503

目录:
适当名称   (Edit)
HD 1989HD 11660
TYCHO-2 2000TYC 1209-1404-1
USNO-A2.0USNO-A2 1050-00522942
HIPHIP 8915

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