CDS.headStuff2ASU Extensions for CDS-VizieR
This page contains the definitions of the extensions to ASU.home adopted at CDS, essentially for the Ala.home usage; and for the data-mining project.
Summary of ASU Extensions at CDS:
||* ||indicates all default columns; || ||** ||indicates all columns (not only the default ones) || ||*mime(type) ||indicates the columns with a link to the specified mime type || ||*ucd ||indicates the columns corresponding to the specifed UCD || ||_V ||a column with just the letter V as a link to the full record|| ||_r ||the distance from the center || ||_x ||the distance from the center projected toward East || ||_y ||the distance from the center projected toward North || ||_RA(Equinox,Epoch) ||the right ascension in another coordinate frame || ||_DE(Equinox,Epoch) ||the declination in another coordinate frame || ||_Glon ||the galactic longitude || ||_Glat ||the galactic latitude ||
i.e. the first line contains the delimiter or sentinel placed immediately after the << sign. This sentinel indicates the end of the list; to be recognized, it has to be placed at the left margin.
As an example, the following is a list of targets:
-c=<<======EndListOfTargets=== 3C 273 NGC 4321 ======EndListOfTargets===