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Full Moon

Dominic Ford, Editor
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The sky at

The Moon will reach full phase. At this time in its monthly cycle of phases, the Moon lies almost directly opposite the Sun in the sky, placing it high above the horizon for much of the night.

The sequence of full moons through the year are often assigned names according to the seasons in which they fall. This month's will be the first to fall in winter 2015 – the Old Moon.

Over the nights following 4 January, the Moon will rise around an hour later each day, becoming prominent later in the night. Within a few days, it will only be visible in the pre-dawn and early-morning sky. By the time it reaches last quarter, a week after full moon, it will rise at around midnight and set at around noon.

At the exact moment when the Moon reaches full phase, it will lie at a declination of +17°42' in the constellation Gemini , and so will appear highest in the northern hemisphere. It will be visible from all latitudes south of 62°S. Its distance from the Earth will be 397,000 km.

The exact position of the Moon at the time it reaches full phase will be:

Object Right Ascension Declination Constellation Angular Size
The Moon 06h59m50s +17°42' Gemini 30'03"

The coordinates above are given in J2000.0.

The sky on 04 January 2015
Twilight ends
Twilight begins

13-day old moon
Waxing Gibbous


13 days old

Rise Culm. Set
Mercury 08:24 13:04 17:44
Venus 08:28 13:12 17:55
Moon 16:46 23:54 06:16
Mars 09:32 14:42 19:53
Jupiter 19:31 02:34 09:32
Saturn 03:59 08:54 13:50
All times shown in EST.


The circumstances of this event were computed using the DE405 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

Related news

04 Jan 2015  –  Full Moon
13 Jan 2015  –  Moon at Last Quarter
20 Jan 2015  –  New Moon
26 Jan 2015  –  Moon at First Quarter

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