A parade of 5 planets in the evening sky

Dominic Ford, Editor
From the Inner Planets feed


All five of the planets that are visible to the unaided eye planets will be above the horizon at the same time, shortly after sunset. However, Mercury will be quite tricky to see since it will set very shortly after the Sun. To see it you will need to have a flat western horizon, clear of obstructions such as buildings or trees. At sunset, it will have an altitude of 9.2°.

It is relatively rare for all of the planets to be aligned in one hemisphere so as to all be above the horizon at the same moment. Such an alignment between the five planets which are visible to the unaided eye happens roughly once every 6 years, while an alignment that also includes Uranus and Neptune, which require binoculars or a telescope to be seen, happens around once every 70 years.

However, since the planets in the outer solar system – especially Saturn, Uranus and Neptune – move quite slowly through the constellations, such alignments can occur multiple times in quick succession, or not at all for over 100 years.

The positions of all the planets at sunset will be as follows:

Planet Altitude
at sunset
Direction
at sunset
Planet
sets at
Mag Constellation
Mercury 9.2° south-west 17:23 -0.4 Sagittarius
Mars 18.6° south-west 18:44 1.1 Sagittarius
Venus 20.3° south 19:09 -4.4 Sagittarius
Jupiter 31.0° south 21:15 -2.4 Capricornus
Saturn 27.5° south-east 02:04 0.3 Pisces

Celestial coordinates

The positions of each of the planets will be:

Object Right Ascension Declination Constellation Magnitude Angular Size
Venus 18h03m 27°00'S Sagittarius -4.4 25"0
Jupiter 21h05m 17°37'S Capricornus -2.4 38"7
Mercury 17h51m 25°46'S Sagittarius -0.4 6"6
Saturn 00h57m 3°14'N Pisces 0.3 19"4
Mars 18h36m 24°26'S Sagittarius 1.1 4"6

The coordinates above are given in J2000.0.

Next/previous occurrences

« Previous Objects simultaneously visible Next »
22 Jan 1984 All seven planets 16 Jun 2022
21 Oct 1986 All five planets that are
visible to the unaided eye
31 Aug 1998

The sky on 22 Nov 2024

The sky on 22 November 2024
Sunrise
06:41
Sunset
16:16
Twilight ends
17:55
Twilight begins
05:02


Waning Crescent

49%

21 days old

Planets
Rise Culm. Set
Mercury 08:36 12:57 17:19
Venus 10:09 14:31 18:53
Moon 22:03 05:23 12:29
Mars 20:40 04:06 11:33
Jupiter 17:14 00:45 08:16
Saturn 13:02 18:32 00:03
All times shown in EST.

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

02 Dec 1997  –  Mercury at highest altitude in evening sky
02 Jan 1998  –  Mercury at highest altitude in morning sky
06 Jan 1998  –  Mercury at greatest elongation west
19 Mar 1998  –  Mercury at greatest elongation east

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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