# Sun and moon at the tent site (generated by astro.py; PyEphem 4.2.1)

Site 61.75854 N 59.42943 E, 898 m; all times local UTC+5 (Sverdlovsk decree time 1959, tzdata Asia/Yekaterinburg).

| date | astr. dawn | naut. dawn | civil dawn | sunrise | solar noon | sunset | civil dusk | naut. dusk | astr. dusk | day length |
|---|---|---|---|---|---|---|---|---|---|---|
| 1959-02-01 | 06:52 | 07:43 | 08:37 | 09:28 | 13:15 | 17:03 | 17:54 | 18:49 | 19:40 | 7.58 h |
| 1959-02-02 | 06:50 | 07:41 | 08:35 | 09:26 | 13:15 | 17:06 | 17:57 | 18:51 | 19:42 | 7.67 h |
| 1959-02-26 | 05:49 | 06:41 | 07:32 | 08:16 | 13:15 | 18:15 | 19:00 | 19:50 | 20:42 | 9.97 h |
| 1959-03-05 | 05:27 | 06:20 | 07:10 | 07:54 | 13:14 | 18:34 | 19:18 | 20:09 | 21:02 | 10.66 h |

| date | moonrise | moonset | illuminated at local noon | previous new moon | next new moon | previous full moon |
|---|---|---|---|---|---|---|
| 1959-02-01 | 1959-02-01 02:52 | 1959-02-01 11:27 | 44.5 % | 1959-01-09 10:33 | 1959-02-08 00:22 | 1959-01-25 00:32 |
| 1959-02-02 | 1959-02-02 04:15 | 1959-02-02 11:59 | 33.4 % | 1959-01-09 10:33 | 1959-02-08 00:22 | 1959-01-25 00:32 |
| 1959-02-26 | 1959-02-26 23:06 | 1959-02-26 08:50 | 88.9 % | 1959-02-08 00:22 | 1959-03-09 15:51 | 1959-02-23 13:53 |
| 1959-03-05 | 1959-03-05 05:58 | 1959-03-05 13:46 | 17.8 % | 1959-02-08 00:22 | 1959-03-09 15:51 | 1959-02-23 13:53 |

## Sun and moon altitude at selected hours (local UTC+5)

| local time | sun alt (ephem) | sun alt (NOAA check) | sun az | moon alt | moon az | moon illum |
|---|---|---|---|---|---|---|
| 1959-02-01 15:00 | 8.3 | 8.3 | 205 | -24.4 | 282 | 43.1 % |
| 1959-02-01 17:00 | -0.5 | -0.5 | 232 | -36.6 | 311 | 42.1 % |
| 1959-02-01 18:00 | -6.5 | -6.5 | 245 | -41.0 | 328 | 41.7 % |
| 1959-02-01 19:00 | -13.3 | -13.3 | 258 | -43.8 | 346 | 41.2 % |
| 1959-02-01 21:00 | -27.3 | -27.3 | 285 | -42.7 | 24 | 40.3 % |
| 1959-02-01 23:00 | -39.4 | -39.4 | 316 | -34.0 | 58 | 39.3 % |
| 1959-02-02 00:00 | -43.4 | -43.4 | 335 | -27.9 | 72 | 38.9 % |
| 1959-02-02 01:00 | -45.3 | -45.3 | 355 | -21.4 | 86 | 38.4 % |
| 1959-02-02 03:00 | -41.7 | -41.7 | 34 | -8.2 | 111 | 37.5 % |
| 1959-02-02 05:00 | -30.8 | -30.8 | 67 | 2.9 | 136 | 36.6 % |
| 1959-02-02 06:00 | -23.9 | -23.9 | 82 | 6.9 | 150 | 36.1 % |
| 1959-02-02 07:00 | -16.9 | -16.9 | 95 | 9.6 | 163 | 35.7 % |
| 1959-02-02 08:00 | -9.9 | -9.9 | 108 | 10.6 | 178 | 35.2 % |
| 1959-02-02 09:00 | -3.4 | -3.4 | 121 | 10.0 | 192 | 34.8 % |
| 1959-02-26 12:00 | 17.8 | 17.8 | 160 | -22.2 | 299 | 88.9 % |
| 1959-02-26 18:00 | 0.9 | 0.9 | 249 | -31.4 | 37 | 87.0 % |
| 1959-03-05 12:00 | 20.4 | 20.4 | 160 | 7.2 | 210 | 17.8 % |
| 1959-03-05 18:00 | 3.1 | 3.1 | 251 | -27.8 | 288 | 15.8 % |

## Darkness on the night of 1-2 Feb 1959 (sun/moon geometry only; cloud not included)

- 1959-02-01 17:00: daylight (sun alt -0.5 deg); moon below horizon
- 1959-02-01 18:00: nautical twilight (sun alt -6.5 deg); moon below horizon
- 1959-02-01 21:00: night (sun alt -27.3 deg); moon below horizon
- 1959-02-02 01:00: night (sun alt -45.3 deg); moon below horizon
- 1959-02-02 06:00: night (sun alt -23.9 deg); moon above horizon (alt 7 deg, 36 % lit)
- 1959-02-02 08:00: nautical twilight (sun alt -9.9 deg); moon above horizon (alt 11 deg, 35 % lit)
- 1959-02-02 09:00: civil twilight (sun alt -3.4 deg); moon above horizon (alt 10 deg, 35 % lit)