XUV spectrum of C I observed from SKYLAB during a solar flare

XV NSO/Sac Peak Solar workshop

XVIII ASI Meeting, Ahmedabad (India), 28 Nov - 1 Dec 1997. Proceedings.

Xvoigt - an Interactive Absorption Line Fitting Program for the X-Window System

XWAS: XMM-2dF Wide Angle Survey

XX Andromedae

XX Cygni

XX Lyrae

XX Pyxidis: the Mummy returns

XX Virgins an RR Lyrae-type variable with interesting period

XXIInd National Australian Convention of Amateur Astronomers

XXIV IAU General Assembly, IAU Symposium S202 ``Planetary Systems in the Universe''

XXM-Newton Observations of Compact Stars

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XZ Catalog of Zodiacal Stars (XZ80N) (Dunham+ 1995)

XZ Cygnus is Good!. (Slovenian Title: XZ Laboda je dobra!)

XZ Tau resolved as double infrared source