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Conjunction of the Moon and Venus

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

The Moon and Venus will share the same right ascension, with the Moon passing 1°58' to the north of Venus. The Moon will be 28 days old.

From Ashburn, the pair will be difficult to observe as they will appear no higher than 15° above the horizon. They will be visible in the dawn sky, rising at 05:40 (EST) – 1 hour and 43 minutes before the Sun – and reaching an altitude of 15° above the eastern horizon before fading from view as dawn breaks around 07:05.

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The Moon will be at mag -9.0, and Venus at mag -3.9, both in the constellation Virgo.

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 12h17m50s +01°42' Virgo -9.0 30'49"9
Venus 12h17m50s -00°16' Virgo -3.9 10"6

The coordinates above are given in J2000.0. The pair will be at an angular separation of 21° from the Sun, which is in Virgo at this time of year.

The sky on 17 October 2017
Twilight ends
Twilight begins

27-day old moon
Waning Crescent


27 days old

Rise Culm. Set
Mercury 07:52 13:17 18:43
Venus 05:38 11:40 17:43
Moon 05:09 11:23 17:37
Mars 05:02 11:13 17:24
Jupiter 07:55 13:22 18:49
Saturn 12:08 16:54 21:40
All times shown in EDT.


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.

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05 Aug 2017  –  Venus reaches highest point in morning sky
09 Jun 2018  –  Venus reaches highest point in evening sky
17 Aug 2018  –  Venus at greatest elongation east
14 Dec 2018  –  Venus reaches highest point in morning sky

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