Simulated image courtesy of Tom Ruen.

Full Moon

Dominic Ford, Editor
From the Moon feed

Objects: The Moon
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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 second to fall in spring 2017 – the Milk Moon.

Over the nights following 10 May, 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 -13°01' in the constellation Libra , and so will appear highest in the southern hemisphere. It will be visible from all latitudes north of 66°N. Its distance from the Earth will be 404,000 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 15h16m20s -13°01' Libra 29'29"

The coordinates above are given in J2000.0.

The sky on 10 May 2017
Twilight ends
Twilight begins

14-day old moon
Waxing Gibbous


14 days old

Rise Culm. Set
Mercury 05:10 11:36 18:03
Venus 04:10 10:21 16:32
Moon 20:07 00:40 06:09
Mars 07:17 14:42 22:06
Jupiter 17:00 22:49 04:42
Saturn 22:52 03:43 08:30
All times shown in EDT.


The circumstances of this event were computed using the DE430 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

10 May 2017  –  Full Moon
12 May 2017  –  The Moon at apogee
13 May 2017  –  The Moon at aphelion
18 May 2017  –  Moon at Last Quarter

Image credit

Simulated image courtesy of Tom Ruen.






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