| filename
| Name of FITS or IRAF image file. This must be present.
|
| -a angle
| Set rotation angle to this constant in nominal WCS
|
| -b
| Output B1950 (FK4) coordinates, overriding equinox of image
|
| -c RA Dec
| Use this as the center at the image or specified equinox.
|
| -d name
| Use this DAOFIND output catalog as input instead of
searching for stars in the image, and output a table of image positions
and sky coordinates. The first three numbers on each line of the input
file are X, Y, and magnitude, separated by one or more blanks or a tab.
Lines beginning with # are ignored.
|
| -e number
| Number of pixels to ignore around image edge
|
| -f
| Write simple ASCII catalog file,
not tab table or DAOFIND file.
|
| -h
| Print heading to output table.
|
| -i peak value
| To be recorded, a star's peak brightness must be greater than
peak value counts. Setting this to reject all but 10-15 stars is
a good way to speed up the star-finding process. If peak value is
less than zero, the minimum peak is -peak value image pixel standard
deviations. Setting this number rejects faint stars early in the selection
process for a significant saving in computing time.
|
| -j
| Output J2000 (FK5) coordinates, overriding equinox of image
|
| -k
| Print each star as it is found, for debugging or to find the best
minimum intensity to use.
|
| -m magnitude offset
| Add this number to magnitudes from counts.
|
| -n number
| Number of brightest stars to print
|
| -p arcsec
| Plate scale in arcseconds per pixel, overriding value in header.
|
| -q osdv+x
| Write SAOimage region file with this shape, o=circle, s=square,
d=diamond, +=cross, and x=X, with the radius scaled with magnitude
unless specified with a -r command line entry. v will cause
stellar Guide Stars to plot with a + and nonstellar Guide Stars to
plot with an x.
(Added in version 2.5)
|
| -r number
| Reject all stars with radius greater than number pixels
|
| -s
| Sort output list by right ascension instead of flux.
|
| -t
| Print tab table (Starbase)
output format to standard output.
|
| -u
| Assume image is unsigned if 16-bit integers.
(Added in version 2.3)
|
| -v
| Print more information about process
|
| -w
| Write output file in DAOFIND format and create the name by adding
.dao to the image file name.
The first three numbers on each line of the output file are X, Y, and
magnitude, separated by one or more blanks or a tab. Lines beginning
with # are ignored.
|
| -z
| Use AIPS classic projection
code (for "-SIN", "-TAN", "-ARC", "-NCP", "-GLS", "-MER", "-AIT" and
"-STG" only) instead of
WCSLIB proposed standard projection code.
|
![[WCS Programs]](../wcspicon.gif)
![[imstar]](wcsimstar.gif)