Paper:	Astrometry of the Planetary-System Millisecond Pulsar B1257+12
Volume:	144, Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164
Page:	331
Authors:	Nunes, N. V.; Bartel, N.
Abstract:	We present the VLBI determined position of the millisecond pulsar PSR B1257+12 which has been shown to have a planetary system (Wolszczan & Frail 1992). The position determination for epoch June 20, 1992 is: alphaJ2000 = \ra[13 0 3.05005](5), deltaJ2000 = + \dec[12 40 56.7043] (34). We indicate how the combination of such pulsar observations along with timing observations can be used to directly tie the solar-system dynamic reference frames and the extragalactic reference frame.

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