XV International Conference on Gravitational Microlensing: Conference Book
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 Cam -The Inactive R CrB Star
XX Cygni
XX Lyrae
XX Pyxidis: the Mummy returns
XX Virgins an RR Lyrae-type variable with interesting period
XX. CoRoT-20b: A very high density, high eccentricity transiting giant planet
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
XXVII International Workshop on High Energy Physics and Field Theory
xxxxx
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