Enter approximate RA Dec of center of image
Enter the Right Ascension (RA) and Declination (Dec) coordinates of the
center of the image. Only approximate coordinates are necessary. The
program uses these coordinates during it's intermediate steps; the
resulting RA and Dec for the object (e.g., asteroid) is not strongly
dependent upon the exact values of these coordinates.
For all entries stick with coordinates for one "epoch" --- "2000"
coordinates, for example. Then the resulting coordinates for the object
will be in that coordinate system.
Note the format: hh mm ss.sss... ±dd mm ss.sss..., and the example
entry. The hh mm ss.sss... values are the RA, where hh is the number of
hours (e.g., 23, or 04), mm is the number of minutes (e.g, 31), and
ss.sss... is the number of seconds, including any decimal fraction of a
second (e.g., 34.44, or 42.56345). The ±dd mm ss.sss... values are
the Dec, where ±dd is the number of degrees, including a sign (e.g,
+14, or -23), mm is the number or arcseconds (e.g., 35, or 12), and
ss.sss... is the number of arcseconds, including any decimal fraction of
an arcsecond (e.g, 23.45). The only rule in entering these values is
that each value must be separated from the others by one or more spaces.
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