The Moon and Saturn will share the same right ascension, with the Moon passing 3°04' to the north of Saturn. The Moon will be 17 days old.
From Seattle, the pair will be visible in the morning sky, becoming accessible around 00:16, when they reach an altitude of 7° above your south-eastern horizon. They will then reach their highest point in the sky at 03:29, 20° above your southern horizon. They will be lost to dawn twilight around 05:12, 16° above your south-western horizon.
The Moon will be at mag -12.4, and Saturn at mag 0.1, both in the constellation Sagittarius.
The pair will be too widely separated to fit within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.
A graph of the angular separation between the Moon and Saturn around the time of closest approach is available here.
The positions of the two objects at the moment of conjunction will be as follows:
|Object||Right Ascension||Declination||Constellation||Magnitude||Angular Size|
The coordinates above are given in J2000.0. The pair will be at an angular separation of 146° from the Sun, which is in Aries at this time of year.
|The sky on 13 May 2017|
17 days old
All times shown in PDT.
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.
|10 Dec 2016||– Saturn at solar conjunction|
|15 Jun 2017||– Saturn at opposition|
|21 Dec 2017||– Saturn at solar conjunction|
|17 Apr 2018||– Saturn at aphelion|
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.