Each object in the Catalogue has a two-line entry giving positional and
descriptive data as follows:
The first line of the first column contains the Catalogue name of
the object. In accordance with the Parkes identification procedure the
name is made up from the hours and minutes of the right ascension
(1950.0), followed by a minus sign and the truncated three most
significant digits of the declination. An asterisk preceding the
Catalogue name indicates that the object is illustrated in Volume II.
Occasionally an object is part of a pair, a triple or a larger
association of objects which are also listed and described in the
Catalogue as separate entries; to find the other members of such
associations the second line of the first column gives, in square
brackets, the abbreviated right ascension and declination of the
member immediately preceding the current object in order of right
ascension. If the current object is the first object in the group, in
order of right ascension, then the reference is to the last member of
group. Accordingly, all members of a group can be recovered by
sequentially following the referenced coordinates.
The second column contains the 1950.0 right ascension in hours,
minutes and seconds of time, followed in the second line by the
declination in degrees, minutes and tenths of minutes of arc.
The third column gives the annual precession in seconds of time
(first line) for the right ascension, and in minutes of arc (second
line) for the declination. (Note: In the few rare instances where the
declination was further south than -85 degrees the precession in right
ascension is given in minutes of time per year, rather than seconds).
The fourth column contains the galactic longitude and galactic
latitude in the first and second lines, respectively.
The fifth column contains the supergalactic longitude and
supergalactic latitude in the first and second lines, respectively.
The sixth column contains, in the first line, a brief description of
the object. Abbreviations used in the description are explained on
page 2. Below the description, in the second line, are
cross-identifications to other catalogues, as listed in the section
entitled Previous Identifications. Occasionally, when many
cross-identifications were found, additional catalogue references were
put at the end of the first line.
The seventh column gives the numerical coding of the description as
listed and explained in
Table 1. Below is an S or D,
indicating that
the following number (given in arc minutes) is a measure of either the
separation of major components, or a characteristic diameter of the
system as a whole, respectively.
Finally the eighth column gives the ESO/SERC field number, followed
by the number of the actual SERC J plate scanned by the authors. In
the second line, are the cartesian co-ordinates of the object,
measured in millimeters from the lower left-hand (south-east) corner
of the original SERC plate.
FORMATTING OF THE CATALOGUED DATA