PMM Catalogs USNO-A2.0 contains entries for over a half billion stars (526, 230, 881, to be exact!) which were detected in the digitized images of three photographic sky surveys. For the entire northern sky and the southern sky down to declinations of -30&deg, all the photographic plates were part of the original Palomar Optical Sky Survey (POSS-I). Photographs were taken on blue- and ...

How to use this form General advice Notes on the catalogue Hipparcos information: ESA's pages CASU at IoA: group pages departmental pages Hipparchos catalogue: query form This form gives access to the catalogue of results from the Hipparcos mission. Queries return astrometric and photometric data for individual objects. Some objects also have finding charts and light curves. Positional and ...

The Online HST Guide Star Catalogue The Online HST Guide Star Catalogue (GSC) Server at the ESO/ST-ECF Archive provides access to the all-sky astrometric and photometric catalogue from the set of two CD-ROMs produced by the Space Telescope Science Institute through its Catalogs and Surveys Branch. Please read the Guide Star Catalogue Information page to find out more about GSC. Enter a position ...

THE 50 NEAREST STARS :This table contains all the 50 known stars within 4.9 parsecs of the Sun. For each star, this list contains the trigonometric parallax, distance to the Sun ( in light years and in parsecs ), visual and absolute magnitude, proper motion, spectral type, coordinates and constellation..