Details Image size: 2953x2953 pixels Physical size: 53x53 cm (21x21") Printing resolution: 150 dpi Graphic Quality: Best (HP 5500 technology) Limiting star magnitude: V=6.5 Messier deepsky objects: most from Messier catalog Other deepsky objects: some important from NGC objects included too (in addition to Messier). All deepsky objects are plotted in six different symbols Star Names: the Bayer and Flamsteed names for bright and medium stars plus the common names for the brightest ones Boundaries and constellation figures are marked in concordance with IAU conventions. The boundaries were precessed to the epoch 2000 Milky Way was drawn in a different color to be easily distinguished The major Julian epoch 2000.0 has been chosen to frame exactly the positions of the celestial objects on the map. Nevertheless, the chart is precise and can be used to find the stars at different epochs about 50 years before and after the year 2000 The major coordinate grid have been marked, e.g. the right ascension each hour and the declination each 20 degrees. Also the Ecliptic circle, the Equator, and the Galactic North Pole have been included To help the orientation on the map as a function of the date, the months correspondent to the sky at 0h UT (Greenwich time midnight) have been marked on the margin