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Glossary

Rising and Setting

Order of rising & setting of Moon

Since the Sun rises in the morning and sets in the evening, sunset always follows sunrise. But because the Moon moves eastward, moonrise and moonset gets late day by day.

So around Full Moon, for example, the Moon sets in the morning and reappears in the evening (Moonrise occurs after moonset!).

Rising and setting of Moon around 2006/09/30
 DateRise Azi.[°]Set Azi.[°]
New Moon2006/09/22 5:00 85.717:29 270.6
1st Quarter2006/09/30 12:55 126.522:09 233.9
Full Moon2006/10/07 17:15 79.9 5:24 275.7
Last Quarter2006/10/14 22:55 59.013:12 302.6

Days with no moonrise or moonset

As we explained in Order of rising & setting of Moon, the times of moonrise & moonset gets late day by day and eventually passes midnight. Let's look at moon rise and moonset on 2006/10/15, for example.

In Koyomi Station, days with no moonrise, transit or moonset are expressed as --:--.

Rising and setting of Moon around 2006/10/16
DateRise Azi.[°]Set Azi.[°]
2006/10/15 23:58 63.8 13:50 298.3
2006/10/16 --:-- ----- 14:21 292.9
2006/10/17 0:58 69.8 14:48 286.7

Days with rising / setting / transit happens twice

When you are at higher latitude, or in the case of outer planets, rising / setting / transit can happen twice a day.

Rising and setting of Saturn around 2008/12/04
DateRise Azi.[°]Set Azi.[°]
2008/12/04 0:02
23:58
83.0
83.1
12:36 277.0
2008/12/05 23:54 83.1 12:32 276.9