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.

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 15.1° west 21:20 0.2 Leo
Jupiter 22.4° west 21:53 -1.8 Leo
Venus 26.8° west 22:14 -4.2 Leo
Mars 34.9° south 01:35 -1.0 Scorpius
Saturn 29.8° south-east 03:14 0.1 Sagittarius

Celestial coordinates

The positions of each of the planets will be:

Object Right Ascension Declination Constellation Magnitude Angular Size
Venus 11h18m 4°52'N Leo -4.2 19"2
Jupiter 11h05m 6°57'N Leo -1.8 31"2
Mars 16h08m 24°18'S Scorpius -1.0 14"0
Saturn 17h44m 22°21'S Sagittarius 0.1 17"8
Mercury 11h06m 3°49'N Leo 0.2 7"4

The coordinates above are given in J2000.0.

Next/previous occurrences

« Previous Objects simultaneously visible Next »
25 Apr 2163 All seven planets
09 Sep 2245 All five planets that are
visible to the unaided eye
22 Mar 2257

The sky on 20 Jul 2024

The sky on 20 July 2024
Sunrise
06:35
Sunset
20:27
Twilight ends
22:00
Twilight begins
05:02


Waxing Gibbous

99%

15 days old

Planets
Rise Culm. Set
Mercury 08:45 15:18 21:51
Venus 07:35 14:24 21:13
Moon 19:24 00:23 05:23
Mars 02:31 09:21 16:11
Jupiter 03:17 10:13 17:09
Saturn 23:06 04:53 10:41
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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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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