The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

Conjunction of Venus and Neptune

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

Venus and Neptune will share the same right ascension, with Venus passing 0°01' to the south of Neptune.

From Fairfield however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 6° above the horizon at dawn.

Begin typing the name of a town near to you, and then select the town from the list of options which appear below.

Venus will be at mag -3.9, and Neptune at mag 7.9, both in the constellation Pisces.

The pair will be close enough to fit within the field of view of a telescope, but will also be visible through a pair of binoculars.

A graph of the angular separation between Venus and Neptune 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
Venus 01h25m40s +07°14' Pisces -3.9 11"0
Neptune 01h25m40s +07°16' Pisces 7.9 2"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 24° from the Sun, which is in Aries at this time of year.

The sky on 18 October 2021
Sunrise
07:08
Sunset
18:08
Twilight ends
19:40
Twilight begins
05:36

12-day old moon
Waxing Gibbous

96%

12 days old

Planets
Rise Culm. Set
Mercury 05:48 11:41 17:33
Venus 11:18 15:44 20:09
Moon 17:36 23:41 05:57
Mars 06:53 12:28 18:03
Jupiter 15:36 20:44 01:52
Saturn 14:48 19:39 00:31
All times shown in EDT.

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.

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20 Oct 2037  –  Neptune at opposition

Image credit

The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

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