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Parallaxes of 16 Planetary Nebulae

Published online by Cambridge University Press:  15 December 2006

Hugh C. Harris
Hugh C. Harris
Affiliation:
U.S. Naval Observatory, 10391 W. Naval Obs. Rd., Flagstaff, AZ 86001, USA email: [email protected]
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Abstract

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Improved trigonometric parallaxes of 16 nearby planetary nebulae are presented. Continued observations now give reduced errors and additional nebulae since initial results were given in 1997. Twelve nebulae have parallax errors less than 20 percent. Comparisons with other distance estimates are discussed.

Keywords

astrometrystars: distancesplanetary nebulae: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S234: Planetary Nebulae in our Galaxy and Beyond , April 2006 , pp. 415 - 416
Copyright
© 2006 International Astronomical Union