Analemmatic Sundial computed by Richard Koolish

Lat: 42.413, Lon: -75.0, Semi-Major: 3.0, Semi-Minor: 02.023, Focus: 02.215

Zone: -75.0, Correction: 00.000 deg = 00.000 min

Hour points as x and y, azimuth and radius 
or focus distances.

Dials not on the time zone meridian are adjusted 
for longitude and are not symmetrical.

Hour: 4,   x: -02.598, y: -01.012,   az: 248.724, z: 02.788,   f1: 04.918, f2: 01.082
Hour: 5,   x: -02.898, y: -00.524,   az: 259.756, z: 02.945,   f1: 05.139, f2: 00.861
Hour: 6,   x: -03.000, y: 00.000,   az: -90.000, z: 03.000,   f1: 05.215, f2: 00.785
Hour: 7,   x: -02.898, y: 00.524,   az: -79.756, z: 02.945,   f1: 05.139, f2: 00.861
Hour: 8,   x: -02.598, y: 01.012,   az: -68.724, z: 02.788,   f1: 04.918, f2: 01.082
Hour: 9,   x: -02.121, y: 01.431,   az: -56.002, z: 02.559,   f1: 04.566, f2: 01.434
Hour: 10,   x: -01.500, y: 01.752,   az: -40.564, z: 02.307,   f1: 04.107, f2: 01.893
Hour: 11,   x: -00.776, y: 01.954,   az: -21.667, z: 02.103,   f1: 03.573, f2: 02.427
Hour: 12,   x: 00.000, y: 02.023,   az: 00.000, z: 02.023,   f1: 03.000, f2: 03.000
Hour: 13,   x: 00.776, y: 01.954,   az: 21.667, z: 02.103,   f1: 02.427, f2: 03.573
Hour: 14,   x: 01.500, y: 01.752,   az: 40.564, z: 02.307,   f1: 01.893, f2: 04.107
Hour: 15,   x: 02.121, y: 01.431,   az: 56.002, z: 02.559,   f1: 01.434, f2: 04.566
Hour: 16,   x: 02.598, y: 01.012,   az: 68.724, z: 02.788,   f1: 01.082, f2: 04.918
Hour: 17,   x: 02.898, y: 00.524,   az: 79.756, z: 02.945,   f1: 00.861, f2: 05.139
Hour: 18,   x: 03.000, y: 00.000,   az: 90.000, z: 03.000,   f1: 00.785, f2: 05.215
Hour: 19,   x: 02.898, y: -00.524,   az: 100.244, z: 02.945,   f1: 00.861, f2: 05.139
Hour: 20,   x: 02.598, y: -01.012,   az: 111.276, z: 02.788,   f1: 01.082, f2: 04.918

Date offsets along the Y axis.

Dec: -23.440,  Y Offset: -00.960
Dec: -18.000,  Y Offset: -00.720
Dec: -12.000,  Y Offset: -00.471
Dec: -06.000,  Y Offset: -00.233
Dec: 00.000,  Y Offset: 00.000
Dec: 06.000,  Y Offset: 00.233
Dec: 12.000,  Y Offset: 00.471
Dec: 18.000,  Y Offset: 00.720
Dec: 23.440,  Y Offset: 00.960


Jan 1,  Dec: -23.010,  Y Offset: -00.941
Feb 1,  Dec: -17.330,  Y Offset: -00.691
Mar 1,  Dec: -07.820,  Y Offset: -00.304
Apr 1,  Dec: 04.300,  Y Offset: 00.167
May 1,  Dec: 14.900,  Y Offset: 00.589
Jun 1,  Dec: 21.970,  Y Offset: 00.894
Jul 1,  Dec: 23.150,  Y Offset: 00.947
Aug 1,  Dec: 18.160,  Y Offset: 00.727
Sep 1,  Dec: 08.500,  Y Offset: 00.331
Oct 1,  Dec: -02.950,  Y Offset: -00.114
Nov 1,  Dec: -14.230,  Y Offset: -00.562
Dec 1,  Dec: -21.710,  Y Offset: -00.882


Jun 21,  Dec: 23.440,  Y Offset: 00.960
Dec 21,  Dec: -23.440,  Y Offset: -00.960