A parade of 5 planets in the morning 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 before sunrise. However, Mercury will be quite tricky to see since it will rise very shortly before the Sun. To see it you will need to have a flat eastern horizon, clear of obstructions such as buildings or trees. At sunrise, it will have an altitude of 13.1°.

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 sunrise will be as follows:

Planet Altitude
at sunrise
Direction
at sunrise
Planet
rises at
Mag Constellation
Mercury 13.1° south-east 05:34 -0.1 Sagittarius
Venus 15.6° south-east 05:11 -4.0 Sagittarius
Saturn 26.5° south 03:17 0.3 Ophiuchus
Mars 32.3° south 00:51 0.7 Libra
Jupiter 21.9° west 20:28 -2.4 Leo

Celestial coordinates

The positions of each of the planets will be:

Object Right Ascension Declination Constellation Magnitude Angular Size
Venus 19h12m 21°58'S Sagittarius -4.0 12"0
Jupiter 11h31m 4°36'N Leo -2.4 42"1
Mercury 19h34m 20°58'S Sagittarius -0.1 6"7
Saturn 16h52m 20°51'S Ophiuchus 0.3 15"9
Mars 15h02m 15°42'S Libra 0.7 7"1

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
30 Dec 2004 All five planets that are
visible to the unaided eye
16 Aug 2016

The sky on 21 Nov 2024

The sky on 21 November 2024
Sunrise
06:45
Sunset
16:28
Twilight ends
18:05
Twilight begins
05:09


Waning Gibbous

55%

20 days old

Planets
Rise Culm. Set
Mercury 08:42 13:07 17:33
Venus 10:12 14:38 19:04
Moon 21:08 04:45 12:10
Mars 20:55 04:18 11:41
Jupiter 17:31 00:58 08:25
Saturn 13:13 18:45 00:17
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

31 Jan 2016  –  Mercury at highest altitude in morning sky
06 Feb 2016  –  Mercury at greatest elongation west
18 Apr 2016  –  Mercury at highest altitude in evening sky
18 Apr 2016  –  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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