imstar
Example 3

Find the 10 brightest stars in image test.fts, which has no WCS, so that a WCS can be fit to them by imwcs.: imstar -n 10 -i 5000 -w test.fts
produces the following in the file test.fts.dao: #IMAGE test.fts #EQUINOX 2000.0 #Stars extracted by IMSTAR 2.3, 15 June 1998, Doug Mink, SAO 617.49 59.96 0.00 29596 617.42 87.23 0.01 30191 749.42 123.43 0.24 30985 979.66 209.95 0.44 29970 629.52 87.02 0.56 30005 630.51 64.87 0.68 30132 467.68 68.95 1.28 30725 620.53 74.02 1.29 30382 294.08 163.51 2.12 7713 255.31 88.94 2.31 5216: #IMAGE test.fts; #EQUINOX 2000.0; #Stars extracted by IMSTAR 2.3, 15 June 1998, Doug Mink, SAO; 617.49 59.96 0.00 29596; 617.42 87.23 0.01 30191; 749.42 123.43 0.24 30985; 979.66 209.95 0.44 29970; 629.52 87.02 0.56 30005; 630.51 64.87 0.68 30132; 467.68 68.95 1.28 30725; 620.53 74.02 1.29 30382; 294.08 163.51 2.12 7713; 255.31 88.94 2.31 5216