The Moon and Venus will share the same right ascension, with the Moon passing 4°03' to the south of Venus. The Moon will be 3 days old.
At around the same time, the two objects will also make a close approach, technically called an appulse.
From Cambridge , the pair will become visible at around 17:15 (EST), 36° above your south-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 3 hours and 54 minutes after the Sun at 20:51.
The Moon will be at mag -10.6 in the constellation Aquarius, and Venus at mag -4.6 in the neighbouring constellation of Pisces.
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 Venus 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 Moon | 23h47m10s | 3°34'S | Aquarius | -10.6 | 31'36"2 |
| Venus | 23h47m10s | 0°29'N | Pisces | -4.6 | 30"6 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 44° from the Sun, which is in Capricornus at this time of year.
The sky on 31 Jan 2017
| The sky on 31 January 2017 | ||||||||||||||||||||||||||||||||||
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18% 3 days old |
All times shown in EST.
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Source
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
| 12 Jan 2017 | – Venus at greatest elongation east |
| 03 Feb 2017 | – Venus at highest altitude in evening sky |
| 03 Jun 2017 | – Venus at greatest elongation west |
| 02 Aug 2017 | – Venus at highest altitude in morning sky |
Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.