The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

It is a matter of common knowledge that in processes of genesis and evolution of many solar phenomena participate magnetic fields of sunspots. ... As a basis for formation of the database we take data on magnetic fields, collected by set of observatories during many years of observations. ... Section "Magnetic field data" contains data of magnetic field observation for separate sunspots, presented in standard text format (ASCII). ... Description of structure of these files is presented here . ...

Catalogue of designations . HyperLeda home | Documentation | Search by name | ... Search the designations of an object . This catalogue (table a101 in the database) presents the compilation of the designations of objects. ... A given object may have several names. ... The colon behing a galaxy designation means that this name is given to 2 (or more) objects. ... The pair keeps the name given in the catalogue and the 2 objects members of the pair have the same name + the colon. code . ...

... 238, Astronomical Data Analysis Software and Systems X, eds. F. R. Harnden, Jr., ... Web-based access to the data will provide a powerful, convenient tool for data searching and solar physics. ... The system will be generated by PHP and MySQL. ... Given the large amount of data, and that the data is not only plain text but also image file, visual file, we select a relational database--MySQL--to build the database management system, and use PHP to build the database engine and user query interface. ...

... every new catalog of objects has to be contained in the UNIX directory having the same name as the catalog of objects; . ... the programs for local operations (programs of low level) with the catalog of objects are also in the same directory; . brief characteristics and names of the programs and file with the description of the catalog are stored in the file cats_descr ; . ... All astronomical catalogs have a different format and list different observables. ...

... Initially SAI Supernova Catalogue was presented in the form of filebased system. ... The current version of SAI Supernova Catalogue presents data on supernovae together with data on their parent galaxies. ... The main source of data for the galaxies was LEDA database. ... In some cases our data were compared with the ones from the Asiago Supernova Catalogue and from List of Supernovae at Harvard-Smithsonian Center for Astrophysics, but the compilation of our Catalogue is carried out independently. ...

. There are several different shells available for Unix; the most popular are described here. You can use any one of these shells if they are available on your system. And you can switch between the different shells once you have found out if they are available. Bourne shell (sh) . C shell (csh) . TC shell (tcsh) . Korn shell (ksh) . Bourne Again SHell (bash) .