18 hours Universal Time corresponds to noon in the Central time zone of the United States when standard time is in effect. During the spring and summer months, and part of autumn it corresponds to 1 PM Central Daylight Time.

The program that generated these coordinates uses algorithms taken from an article by Van Flandern and Pulkkinen (Ap. J. Suppl., vol. 41, Nov. 1979, pp. 391-411). The routines use coefficients of Chebyshev polynomials and will give positions good to one arc minute.


                    OBJECT =  Sun       (18.0H UT)
             DATE              RA              DEC

           JAN  1, 2021       18:50:12       -22:56: 8
           JAN  2, 2021       18:54:37       -22:50:37
           JAN  3, 2021       18:59: 1       -22:44:39
           JAN  4, 2021       19: 3:24       -22:38:14
           JAN  5, 2021       19: 7:47       -22:31:22
           JAN  6, 2021       19:12:11       -22:24: 2
           JAN  7, 2021       19:16:32       -22:16:19
           JAN  8, 2021       19:20:54       -22: 8: 6
           JAN  9, 2021       19:25:16       -21:59:28
           JAN 10, 2021       19:29:36       -21:50:26
           JAN 11, 2021       19:33:57       -21:40:57
           JAN 12, 2021       19:38:17       -21:31: 2
           JAN 13, 2021       19:42:35       -21:20:45
           JAN 14, 2021       19:46:54       -21:10: 0
           JAN 15, 2021       19:51:12       -20:58:51
           JAN 16, 2021       19:55:28       -20:47:21
           JAN 17, 2021       19:59:45       -20:35:24
           JAN 18, 2021       20: 4: 0       -20:23: 4
           JAN 19, 2021       20: 8:14       -20:10:24
           JAN 20, 2021       20:12:29       -19:57:18
           JAN 21, 2021       20:16:42       -19:43:49
           JAN 22, 2021       20:20:54       -19:30: 2
           JAN 23, 2021       20:25: 6       -19:15:50
           JAN 24, 2021       20:29:17       -19: 1:17
           JAN 25, 2021       20:33:27       -18:46:26
           JAN 26, 2021       20:37:36       -18:31:11
           JAN 27, 2021       20:41:45       -18:15:36
           JAN 28, 2021       20:45:52       -17:59:45
           JAN 29, 2021       20:49:59       -17:43:31
           JAN 30, 2021       20:54: 6       -17:26:57
           JAN 31, 2021       20:58:10       -17:10:10

           FEB  1, 2021       21: 2:15       -16:53: 0
           FEB  2, 2021       21: 6:19       -16:35:32
           FEB  3, 2021       21:10:21       -16:17:51
           FEB  4, 2021       21:14:23       -15:59:49
           FEB  5, 2021       21:18:25       -15:41:30
           FEB  6, 2021       21:22:25       -15:23: 0
           FEB  7, 2021       21:26:25       -15: 4: 9
           FEB  8, 2021       21:30:24       -14:45: 3
           FEB  9, 2021       21:34:21       -14:25:47
           FEB 10, 2021       21:38:19       -14: 6:12
           FEB 11, 2021       21:42:16       -13:46:22
           FEB 12, 2021       21:46:11       -13:26:25
           FEB 13, 2021       21:50: 6       -13: 6: 8
           FEB 14, 2021       21:54: 1       -12:45:39
           FEB 15, 2021       21:57:54       -12:25: 3
           FEB 16, 2021       22: 1:47       -12: 4:10
           FEB 17, 2021       22: 5:40       -11:43: 5
           FEB 18, 2021       22: 9:30       -11:21:54
           FEB 19, 2021       22:13:21       -11: 0:28
           FEB 20, 2021       22:17:12       -10:38:50
           FEB 21, 2021       22:21: 1       -10:17: 9
           FEB 22, 2021       22:24:50        -9:55:13
           FEB 23, 2021       22:28:38        -9:33: 7
           FEB 24, 2021       22:32:25        -9:10:58
           FEB 25, 2021       22:36:12        -8:48:36
           FEB 26, 2021       22:39:59        -8:26: 5
           FEB 27, 2021       22:43:44        -8: 3:33
           FEB 28, 2021       22:47:30        -7:40:48

           MAR  1, 2021       22:51:15        -7:17:57
           MAR  2, 2021       22:54:58        -6:55: 5
           MAR  3, 2021       22:58:42        -6:32: 1
           MAR  4, 2021       23: 2:26        -6: 8:52
           MAR  5, 2021       23: 6: 9        -5:45:44
           MAR  6, 2021       23: 9:51        -5:22:25
           MAR  7, 2021       23:13:34        -4:59: 1
           MAR  8, 2021       23:17:15        -4:35:40
           MAR  9, 2021       23:20:57        -4:12: 9
           MAR 10, 2021       23:24:38        -3:48:35
           MAR 11, 2021       23:28:19        -3:25: 5
           MAR 12, 2021       23:32: 0        -3: 1:26
           MAR 13, 2021       23:35:40        -2:37:44
           MAR 14, 2021       23:39:20        -2:14: 8
           MAR 15, 2021       23:43: 0        -1:50:24
           MAR 16, 2021       23:46:39        -1:26:39
           MAR 17, 2021       23:50:18        -1: 2:59
           MAR 18, 2021       23:53:58        -0:39:13
           MAR 19, 2021       23:57:37        -0:15:28
           MAR 20, 2021        0: 1:15         0: 8:11
           MAR 21, 2021        0: 4:54         0:31:55
           MAR 22, 2021        0: 8:33         0:55:38
           MAR 23, 2021        0:12:11         1:19:13
           MAR 24, 2021        0:15:50         1:42:52
           MAR 25, 2021        0:19:28         2: 6:28
           MAR 26, 2021        0:23: 6         2:29:56
           MAR 27, 2021        0:26:45         2:53:27
           MAR 28, 2021        0:30:23         3:16:55
           MAR 29, 2021        0:34: 1         3:40:12
           MAR 30, 2021        0:37:40         4: 3:32
           MAR 31, 2021        0:41:19         4:26:47

           APR  1, 2021        0:44:57         4:49:51
           APR  2, 2021        0:48:36         5:12:56
           APR  3, 2021        0:52:15         5:35:55
           APR  4, 2021        0:55:54         5:58:43
           APR  5, 2021        0:59:34         6:21:30
           APR  6, 2021        1: 3:14         6:44:11
           APR  7, 2021        1: 6:53         7: 6:39
           APR  8, 2021        1:10:33         7:29: 6
           APR  9, 2021        1:14:14         7:51:25
           APR 10, 2021        1:17:54         8:13:30
           APR 11, 2021        1:21:35         8:35:33
           APR 12, 2021        1:25:16         8:57:27
           APR 13, 2021        1:28:57         9:19: 6
           APR 14, 2021        1:32:39         9:40:42
           APR 15, 2021        1:36:22        10: 2: 8
           APR 16, 2021        1:40: 4        10:23:19
           APR 17, 2021        1:43:47        10:44:25
           APR 18, 2021        1:47:31        11: 5:20
           APR 19, 2021        1:51:14        11:25:59
           APR 20, 2021        1:54:58        11:46:32
           APR 21, 2021        1:58:43        12: 6:53
           APR 22, 2021        2: 2:27        12:26:58
           APR 23, 2021        2: 6:13        12:46:55
           APR 24, 2021        2: 9:59        13: 6:39
           APR 25, 2021        2:13:45        13:26: 5
           APR 26, 2021        2:17:32        13:45:23
           APR 27, 2021        2:21:19        14: 4:28
           APR 28, 2021        2:25: 6        14:23:14
           APR 29, 2021        2:28:55        14:41:50
           APR 30, 2021        2:32:44        15: 0:12

           MAY  1, 2021        2:36:33        15:18:14
           MAY  2, 2021        2:40:23        15:36: 5
           MAY  3, 2021        2:44:14        15:53:41
           MAY  4, 2021        2:48: 5        16:10:57
           MAY  5, 2021        2:51:57        16:28: 1
           MAY  6, 2021        2:55:49        16:44:49
           MAY  7, 2021        2:59:41        17: 1:15
           MAY  8, 2021        3: 3:35        17:17:29
           MAY  9, 2021        3: 7:29        17:33:25
           MAY 10, 2021        3:11:23        17:49: 0
           MAY 11, 2021        3:15:19        18: 4:21
           MAY 12, 2021        3:19:15        18:19:23
           MAY 13, 2021        3:23:10        18:34: 3
           MAY 14, 2021        3:27: 8        18:48:28
           MAY 15, 2021        3:31: 5        19: 2:34
           MAY 16, 2021        3:35: 3        19:16:17
           MAY 17, 2021        3:39: 1        19:29:44
           MAY 18, 2021        3:43: 1        19:42:52
           MAY 19, 2021        3:47: 0        19:55:35
           MAY 20, 2021        3:51: 0        20: 8: 2
           MAY 21, 2021        3:55: 1        20:20: 7
           MAY 22, 2021        3:59: 2        20:31:49
           MAY 23, 2021        4: 3: 3        20:43:13
           MAY 24, 2021        4: 7: 6        20:54:15
           MAY 25, 2021        4:11: 8        21: 4:53
           MAY 26, 2021        4:15:11        21:15:12
           MAY 27, 2021        4:19:15        21:25: 9
           MAY 28, 2021        4:23:18        21:34:41
           MAY 29, 2021        4:27:23        21:43:53
           MAY 30, 2021        4:31:29        21:52:42
           MAY 31, 2021        4:35:33        22: 1: 6

           JUN  1, 2021        4:39:39        22: 9: 9
           JUN  2, 2021        4:43:46        22:16:49
           JUN  3, 2021        4:47:52        22:24: 4
           JUN  4, 2021        4:51:59        22:30:58
           JUN  5, 2021        4:56: 7        22:37:27
           JUN  6, 2021        5: 0:14        22:43:31
           JUN  7, 2021        5: 4:22        22:49:13
           JUN  8, 2021        5: 8:30        22:54:30
           JUN  9, 2021        5:12:38        22:59:22
           JUN 10, 2021        5:16:47        23: 3:52
           JUN 11, 2021        5:20:56        23: 7:56
           JUN 12, 2021        5:25: 5        23:11:35
           JUN 13, 2021        5:29:14        23:14:51
           JUN 14, 2021        5:33:24        23:17:42
           JUN 15, 2021        5:37:33        23:20: 8
           JUN 16, 2021        5:41:42        23:22: 9
           JUN 17, 2021        5:45:52        23:23:46
           JUN 18, 2021        5:50: 1        23:24:58
           JUN 19, 2021        5:54:11        23:25:45
           JUN 20, 2021        5:58:21        23:26: 7
           JUN 21, 2021        6: 2:31        23:26: 4
           JUN 22, 2021        6: 6:40        23:25:37
           JUN 23, 2021        6:10:50        23:24:45
           JUN 24, 2021        6:14:59        23:23:28
           JUN 25, 2021        6:19: 8        23:21:47
           JUN 26, 2021        6:23:17        23:19:40
           JUN 27, 2021        6:27:26        23:17: 9
           JUN 28, 2021        6:31:34        23:14:14
           JUN 29, 2021        6:35:43        23:10:54
           JUN 30, 2021        6:39:52        23: 7:10

           JUL  1, 2021        6:43:59        23: 3: 2
           JUL  2, 2021        6:48: 7        22:58:29
           JUL  3, 2021        6:52:15        22:53:32
           JUL  4, 2021        6:56:22        22:48:12
           JUL  5, 2021        7: 0:29        22:42:28
           JUL  6, 2021        7: 4:36        22:36:19
           JUL  7, 2021        7: 8:42        22:29:49
           JUL  8, 2021        7:12:48        22:22:53
           JUL  9, 2021        7:16:54        22:15:35
           JUL 10, 2021        7:20:58        22: 7:55
           JUL 11, 2021        7:25: 3        21:59:51
           JUL 12, 2021        7:29: 7        21:51:24
           JUL 13, 2021        7:33:10        21:42:36
           JUL 14, 2021        7:37:14        21:33:24
           JUL 15, 2021        7:41:17        21:23:50
           JUL 16, 2021        7:45:18        21:13:57
           JUL 17, 2021        7:49:20        21: 3:40
           JUL 18, 2021        7:53:21        20:53: 1
           JUL 19, 2021        7:57:21        20:42: 4
           JUL 20, 2021        8: 1:21        20:30:43
           JUL 21, 2021        8: 5:21        20:19: 2
           JUL 22, 2021        8: 9:19        20: 7: 3
           JUL 23, 2021        8:13:17        19:54:41
           JUL 24, 2021        8:17:15        19:41:59
           JUL 25, 2021        8:21:11        19:29: 0
           JUL 26, 2021        8:25: 8        19:15:39
           JUL 27, 2021        8:29: 4        19: 1:59
           JUL 28, 2021        8:32:58        18:48: 3
           JUL 29, 2021        8:36:53        18:33:46
           JUL 30, 2021        8:40:47        18:19:10
           JUL 31, 2021        8:44:40        18: 4:20

           AUG  1, 2021        8:48:33        17:49: 8
           AUG  2, 2021        8:52:26        17:33:39
           AUG  3, 2021        8:56:16        17:17:57
           AUG  4, 2021        9: 0: 8        17: 1:54
           AUG  5, 2021        9: 3:59        16:45:34
           AUG  6, 2021        9: 7:48        16:29: 3
           AUG  7, 2021        9:11:37        16:12:11
           AUG  8, 2021        9:15:26        15:55: 4
           AUG  9, 2021        9:19:14        15:37:45
           AUG 10, 2021        9:23: 2        15:20: 8
           AUG 11, 2021        9:26:49        15: 2:15
           AUG 12, 2021        9:30:34        14:44:13
           AUG 13, 2021        9:34:21        14:25:52
           AUG 14, 2021        9:38: 6        14: 7:17
           AUG 15, 2021        9:41:50        13:48:34
           AUG 16, 2021        9:45:35        13:29:32
           AUG 17, 2021        9:49:18        13:10:18
           AUG 18, 2021        9:53: 1        12:50:56
           AUG 19, 2021        9:56:44        12:31:17
           AUG 20, 2021       10: 0:26        12:11:26
           AUG 21, 2021       10: 4: 7        11:51:29
           AUG 22, 2021       10: 7:48        11:31:15
           AUG 23, 2021       10:11:29        11:10:50
           AUG 24, 2021       10:15: 9        10:50:21
           AUG 25, 2021       10:18:49        10:29:35
           AUG 26, 2021       10:22:29        10: 8:39
           AUG 27, 2021       10:26: 8         9:47:39
           AUG 28, 2021       10:29:47         9:26:25
           AUG 29, 2021       10:33:25         9: 5: 1
           AUG 30, 2021       10:37: 3         8:43:34
           AUG 31, 2021       10:40:41         8:21:54

           SEP  1, 2021       10:44:19         8: 0: 5
           SEP  2, 2021       10:47:55         7:38:14
           SEP  3, 2021       10:51:33         7:16:10
           SEP  4, 2021       10:55:10         6:53:59
           SEP  5, 2021       10:58:46         6:31:47
           SEP  6, 2021       11: 2:22         6: 9:23
           SEP  7, 2021       11: 5:59         5:46:52
           SEP  8, 2021       11: 9:34         5:24:22
           SEP  9, 2021       11:13:10         5: 1:41
           SEP 10, 2021       11:16:46         4:38:54
           SEP 11, 2021       11:20:21         4:16: 8
           SEP 12, 2021       11:23:56         3:53:12
           SEP 13, 2021       11:27:32         3:30:12
           SEP 14, 2021       11:31: 7         3: 7:14
           SEP 15, 2021       11:34:42         2:44: 6
           SEP 16, 2021       11:38:17         2:20:56
           SEP 17, 2021       11:41:52         1:57:48
           SEP 18, 2021       11:45:27         1:34:32
           SEP 19, 2021       11:49: 3         1:11:14
           SEP 20, 2021       11:52:37         0:48: 0
           SEP 21, 2021       11:56:13         0:24:39
           SEP 22, 2021       11:59:48         0: 1:16
           SEP 23, 2021       12: 3:23        -0:22: 1
           SEP 24, 2021       12: 6:59        -0:45:25
           SEP 25, 2021       12:10:35        -1: 8:49
           SEP 26, 2021       12:14:10        -1:32: 6
           SEP 27, 2021       12:17:47        -1:55:29
           SEP 28, 2021       12:21:24        -2:18:52
           SEP 29, 2021       12:25: 0        -2:42: 7
           SEP 30, 2021       12:28:37        -3: 5:26

           OCT  1, 2021       12:32:14        -3:28:43
           OCT  2, 2021       12:35:51        -3:51:52
           OCT  3, 2021       12:39:30        -4:15: 5
           OCT  4, 2021       12:43: 8        -4:38:14
           OCT  5, 2021       12:46:46        -5: 1:14
           OCT  6, 2021       12:50:25        -5:24:16
           OCT  7, 2021       12:54: 5        -5:47:14
           OCT  8, 2021       12:57:44        -6:10: 2
           OCT  9, 2021       13: 1:25        -6:32:51
           OCT 10, 2021       13: 5: 6        -6:55:34
           OCT 11, 2021       13: 8:46        -7:18: 6
           OCT 12, 2021       13:12:28        -7:40:38
           OCT 13, 2021       13:16:11        -8: 3: 4
           OCT 14, 2021       13:19:53        -8:25:17
           OCT 15, 2021       13:23:36        -8:47:29
           OCT 16, 2021       13:27:21        -9: 9:33
           OCT 17, 2021       13:31: 4        -9:31:24
           OCT 18, 2021       13:34:49        -9:53:12
           OCT 19, 2021       13:38:35       -10:14:51
           OCT 20, 2021       13:42:21       -10:36:16
           OCT 21, 2021       13:46: 8       -10:57:37
           OCT 22, 2021       13:49:56       -11:18:48
           OCT 23, 2021       13:53:43       -11:39:44
           OCT 24, 2021       13:57:33       -12: 0:34
           OCT 25, 2021       14: 1:23       -12:21:14
           OCT 26, 2021       14: 5:12       -12:41:36
           OCT 27, 2021       14: 9: 4       -13: 1:53
           OCT 28, 2021       14:12:56       -13:21:57
           OCT 29, 2021       14:16:48       -13:41:43
           OCT 30, 2021       14:20:42       -14: 1:21
           OCT 31, 2021       14:24:36       -14:20:46

           NOV  1, 2021       14:28:31       -14:39:52
           NOV  2, 2021       14:32:27       -14:58:49
           NOV  3, 2021       14:36:24       -15:17:31
           NOV  4, 2021       14:40:21       -15:35:53
           NOV  5, 2021       14:44:20       -15:54: 5
           NOV  6, 2021       14:48:19       -16:12: 1
           NOV  7, 2021       14:52:19       -16:29:36
           NOV  8, 2021       14:56:20       -16:46:59
           NOV  9, 2021       15: 0:22       -17: 4: 5
           NOV 10, 2021       15: 4:24       -17:20:49
           NOV 11, 2021       15: 8:28       -17:37:19
           NOV 12, 2021       15:12:32       -17:53:31
           NOV 13, 2021       15:16:36       -18: 9:21
           NOV 14, 2021       15:20:43       -18:24:55
           NOV 15, 2021       15:24:50       -18:40:10
           NOV 16, 2021       15:28:56       -18:55: 2
           NOV 17, 2021       15:33: 5       -19: 9:37
           NOV 18, 2021       15:37:15       -19:23:51
           NOV 19, 2021       15:41:24       -19:37:41
           NOV 20, 2021       15:45:35       -19:51:13
           NOV 21, 2021       15:49:47       -20: 4:23
           NOV 22, 2021       15:53:59       -20:17: 8
           NOV 23, 2021       15:58:12       -20:29:34
           NOV 24, 2021       16: 2:27       -20:41:37
           NOV 25, 2021       16: 6:41       -20:53:14
           NOV 26, 2021       16:10:57       -21: 4:30
           NOV 27, 2021       16:15:13       -21:15:23
           NOV 28, 2021       16:19:30       -21:25:49
           NOV 29, 2021       16:23:48       -21:35:53
           NOV 30, 2021       16:28: 7       -21:45:33

           DEC  1, 2021       16:32:25       -21:54:45
           DEC  2, 2021       16:36:45       -22: 3:34
           DEC  3, 2021       16:41: 6       -22:11:58
           DEC  4, 2021       16:45:26       -22:19:54
           DEC  5, 2021       16:49:48       -22:27:26
           DEC  6, 2021       16:54:10       -22:34:32
           DEC  7, 2021       16:58:32       -22:41: 9
           DEC  8, 2021       17: 2:55       -22:47:22
           DEC  9, 2021       17: 7:19       -22:53: 7
           DEC 10, 2021       17:11:42       -22:58:24
           DEC 11, 2021       17:16: 7       -23: 3:15
           DEC 12, 2021       17:20:32       -23: 7:39
           DEC 13, 2021       17:24:56       -23:11:34
           DEC 14, 2021       17:29:21       -23:15: 3
           DEC 15, 2021       17:33:47       -23:18: 3
           DEC 16, 2021       17:38:12       -23:20:35
           DEC 17, 2021       17:42:38       -23:22:39
           DEC 18, 2021       17:47: 4       -23:24:16
           DEC 19, 2021       17:51:30       -23:25:24
           DEC 20, 2021       17:55:56       -23:26: 4
           DEC 21, 2021       18: 0:23       -23:26:15
           DEC 22, 2021       18: 4:48       -23:25:59
           DEC 23, 2021       18: 9:15       -23:25:14
           DEC 24, 2021       18:13:42       -23:24: 1
           DEC 25, 2021       18:18: 7       -23:22:20
           DEC 26, 2021       18:22:34       -23:20:10
           DEC 27, 2021       18:27: 0       -23:17:32
           DEC 28, 2021       18:31:25       -23:14:27
           DEC 29, 2021       18:35:52       -23:10:53
           DEC 30, 2021       18:40:17       -23: 6:51
           DEC 31, 2021       18:44:42       -23: 2:23

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