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The rise/set search based on hour angles is complicated, and doesn't handle oddities that happen close to the poles. I'm starting to rework rise/set as a more brute force solution that iterates through finite time steps. I also added a series of Moon data for the arctic circle, which includes some of the more painful special cases. For example: Moon 130 80 2034-05-16T13:21Z s Moon 130 80 2034-05-16T13:51Z r Here the Moon sets, then rises 30 minutes later. So now I'm trying to figure out how to discover arbitrarily brief intervals like this. I want the time increments to scale intelligently so that we don't waste time during long periods of inactivity (body above or below the horizon continuously), but without missing examples like the one above.
49 lines
6.1 KiB
HTML
49 lines
6.1 KiB
HTML
o , o , Astronomical Applications Dept.
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Location: E105 00, N83 00 Rise and Set for the Moon for 2030 U. S. Naval Observatory
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Washington, DC 20392-5420
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Universal Time
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Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.
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Day Rise Set Rise Set Rise Set Rise Set Rise Set Rise Set Rise Set Rise Set Rise Set Rise Set Rise Set Rise Set
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h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m h m
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01 ---- ---- ---- ---- ---- ---- 1939 1124 **** **** **** **** **** **** 2309 1529 ---- ---- ---- ---- ---- ---- 0826 1333
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02 ---- ---- ---- ---- ---- ---- **** **** **** **** **** **** **** **** 1325 ---- ---- ---- ---- ---- ---- 0602 1754
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03 ---- ---- ---- ---- ---- ---- **** **** **** **** **** **** **** **** 0325 1121 ---- ---- ---- ---- ---- ---- 0414 2245
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04 ---- ---- 0359 0950 0041 1036 **** **** **** **** **** **** **** **** ---- ---- ---- ---- ---- ---- 0916 1653 0114
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04 2245
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05 ---- ---- 0135 1411 2024 1452 **** **** **** **** **** **** 1629 ---- ---- ---- ---- ---- ---- 0717 2053 **** ****
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05 2338
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06 ---- ---- **** **** **** **** **** **** **** **** **** **** 0221 1434 ---- ---- ---- ---- ---- ---- 0525 **** ****
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07 ---- ---- **** **** **** **** **** **** **** **** 2008 0649 1206 ---- ---- ---- ---- ---- ---- **** **** **** ****
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08 0425 1352 **** **** **** **** **** **** **** **** 0058 1737 ---- ---- ---- ---- ---- ---- 1026 1954 **** **** **** ****
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09 0227 1804 **** **** **** **** **** **** **** **** 0529 1540 ---- ---- ---- ---- ---- ---- 0834 **** **** **** ****
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10 0011 **** **** **** **** **** **** **** **** ---- ---- ---- ---- ---- ---- 1411 1833 0627 0002 **** **** **** ****
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11 **** **** **** **** **** **** **** **** 2049 ---- ---- ---- ---- ---- ---- 1133 2310 **** **** **** **** **** ****
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12 **** **** **** **** **** **** **** **** 0435 1842 ---- ---- ---- ---- ---- ---- 0940 **** **** **** **** **** ****
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13 **** **** **** **** **** **** **** **** 0904 1628 ---- ---- ---- ---- ---- ---- 0628 0417 **** **** **** **** **** ****
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14 **** **** **** **** **** **** 2138 ---- ---- ---- ---- ---- ---- 1433 2238 **** **** **** **** **** **** **** ****
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15 **** **** **** **** **** **** 0823 1935 ---- ---- ---- ---- ---- ---- 1229 **** **** **** **** **** **** **** ****
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16 **** **** **** **** **** **** 1425 1542 ---- ---- ---- ---- ---- ---- 1025 0254 **** **** **** **** **** **** 1343 0639
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17 **** **** **** **** **** **** ---- ---- ---- ---- ---- ---- 1811 2136 **** **** **** **** **** **** **** **** 1741 0440
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18 **** **** **** **** 0747 0046 ---- ---- ---- ---- ---- ---- 1514 **** **** **** **** **** **** **** **** 0249
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18 2227
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19 **** **** 1152 0121 1234 2008 ---- ---- ---- ---- ---- ---- 1320 0231 **** **** **** **** **** **** 1706 0735 ---- ----
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19 2315
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20 **** **** 1734 1941 ---- ---- ---- ---- ---- ---- 1811 1024 0721 **** **** **** **** **** **** 2122 0544 ---- ----
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21 **** **** ---- ---- ---- ---- ---- ---- ---- ---- 1608 0204 **** **** **** **** **** **** **** **** 0329 ---- ----
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22 1048 0443 ---- ---- ---- ---- ---- ---- ---- ---- 1409 0610 **** **** **** **** **** **** 1624 1051 ---- ---- ---- ----
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23 1527 0216 ---- ---- ---- ---- ---- ---- 2235 **** **** **** **** **** **** **** **** 2047 0833 ---- ---- ---- ----
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24 0006 ---- ---- ---- ---- ---- ---- 1905 0008 **** **** **** **** **** **** **** **** 0638 ---- ---- ---- ----
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25 ---- ---- ---- ---- ---- ---- ---- ---- 1714 0527 **** **** **** **** **** **** 2023 1127 ---- ---- ---- ---- ---- ----
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26 ---- ---- ---- ---- ---- ---- 2237 1456 0938 **** **** **** **** **** **** 0929 ---- ---- ---- ---- ---- ----
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27 ---- ---- ---- ---- ---- ---- 2019 0415 **** **** **** **** **** **** **** **** 0049 0712 ---- ---- ---- ---- ---- ----
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28 ---- ---- ---- ---- ---- ---- 1829 0825 **** **** **** **** **** **** 1923 1458 ---- ---- ---- ---- ---- ---- ---- ----
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29 ---- ---- ---- ---- 1502 1338 **** **** **** **** **** **** 1221 ---- ---- ---- ---- ---- ---- 0505 1429
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30 ---- ---- 2339 **** **** **** **** **** **** **** **** 0002 1025 ---- ---- ---- ---- ---- ---- 0311 1842
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31 ---- ---- 2137 0722 **** **** **** **** ---- ---- ---- ---- 0102
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Note: Blank spaces in the table indicate that a rising or a setting did not occur during that 24 hr interval.
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(**** object continuously above horizon) (---- object continuously below horizon)
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Add one hour for daylight time, if and when in use. |