A star chart as near as your pocket for Windows Mobile Smartphone! Pocket Stars is an integrated, real-time star finder and ephemeris for Windows Mobile Smartphone. Pocket Stars is a portable guide to the heavens for casual stargazers, astronomers, and celestial navigators alike. Finalist 2004 Handango Best Education Application and Finalist 2004 Microsoft Mobile2Market Contest. Star Chart Features Simple and fast star, planet, constellation and Messier object identification. Single click on any body to get the name, designation, calculated altitude, azimuth, and magnitude. Drag the cursor to scroll the chart. Zoom in and out with a single click. Orbital paths of inner planets and sun. Black, white, and red star chart colors for normal, bright, and night viewing conditions, respectively. Chart can be rotated to any of the 16 compass points and also flipped along the North - South axis. User location set by clicking on map, city selection, or by entering Latitude and Longitude. Chart can be "live, realtime", or static for any user selected time. Core positional calculation routines based on "Novas" (Naval Observatory Vector Astrometry Subroutines Version 2.0.1) from the US Naval Observatory. Star data is from the Bright Star Catalog (5th Revised Edition), comprising the 9110 brightest stars using J2000 equatorial positions and the International Celestial Reference Frame (ICRF). Corrections are performed for proper motions and parallax. Planet ephemeris data from Jet Propulsion Laboratory using the DE405 database.