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

Lunar occultation of Saturn

Dominic Ford, Editor
From the Lunar Occultations feed

Objects: Saturn

The Moon will pass in front of Saturn, creating a lunar occultation visible from Africa, South America and Asia. Although the occultation will only be visible across part of the world – because the Moon is so close to the Earth that its position in the sky varies by as much as two degrees across the world – a close conjunction between the pair will be more widely visible.

Unfortunately the occultation will not be visible from Fairfield.

The map below shows the visibility of the occultation across the world. Separate contours show where the disappearance of Saturn is visible (shown in red), and where its reappearance is visible (shown in blue). Solid contours show where each event is likely to be visible through binoculars at a reasonable altitude in the sky. Dotted contours indicate where each event occurs above the horizon, but may not be visible due to the sky being too bright or the Moon being very close to the horizon.

Map showing where the occultation is visible

Outside the contours, the Moon will not pass in front of Saturn at any time, or is below the horizon at the time of the occultation. However, a close conjunction between the pair will be visible across much of the world.

The map can be downloaded in PNG , PDF or SVG format. A KMZ file , is also available, which can be opened in Google Earth to provide a higher resolution map.

The animation below shows the path of the occultation across the Earth's globe. The red circle shows where the Moon appears in front of Saturn.

You can download this video in MP4 or OGG format.

A complete list of the countries and territories where the occultation will be visible is as follows:

Country Time span
(UTC)
Brazil 21:33–23:06
Sudan 00:15–01:59
Saudi Arabia 00:46–02:04
Libya 00:08–01:49
Iran 00:58–02:05
Chad 23:51–01:47
Niger 23:22–01:35
Mali 22:56–01:07
Algeria 23:43–01:26
Egypt 00:27–01:59
Nigeria 23:13–01:26
Turkey 00:54–01:53
Central African Republic 23:51–01:33
Iraq 00:53–02:03
Ethiopia 00:50–01:50
Cameroon 23:29–01:27
Yemen 00:58–01:59
Mauritania 23:09–00:35
Oman 01:03–02:05
Ivory Coast 22:43–00:43
Democratic Republic of the Congo 00:08–01:13
Burkina Faso 23:01–01:00
Gabon 23:29–00:58
Republic of the Congo 23:47–01:06
Guinea 22:44–00:26
Ghana 22:55–00:53
Syria 00:51–01:55
Senegal 22:54–00:12
Turkmenistan 01:04–01:56
Suriname 21:45–22:34
Bolivia 21:36–22:31
Guyana 21:43–22:33
Eritrea 00:48–01:56
Paraguay 21:40–22:24
Azerbaijan 01:04–01:52
Benin 23:10–01:02
Jordan 00:47–01:58
Liberia 22:40–00:25
United Arab Emirates 01:01–02:05
French Guiana 21:46–22:35
Georgia 01:09–01:43
Kazakhstan 01:09–01:47
Sierra Leone 22:40–00:17
Russia 01:09–01:43
Togo 23:07–00:55
Greece 00:49–01:37
Guinea-Bissau 22:48–00:03
Armenia 01:04–01:50
Equatorial Guinea 23:28–00:59
Israel 00:47–01:56
Djibouti 01:06–01:44
Tunisia 00:32–01:06
Somalia 01:11–01:39
Kuwait 00:57–02:04
Qatar 01:00–02:05
Cyprus 00:52–01:48
Gambia 22:59–23:59
Lebanon 00:51–01:53
Palestinian Territory 00:49–01:55
Sao Tome and Principe 23:20–00:50
Bahrain 01:00–02:04
Saint Helena 22:12–23:41
RAF Akrotiri 00:52–01:48
Uzbekistan 01:09–01:47

Lunar occultations are only ever visible from a small fraction of the Earth's surface. Since the Moon is much closer to the Earth than other celestial objects, its exact position in the sky differs depending on your exact location on Earth due to its large parallax. The position of the Moon as seen from two points on opposite sides of the Earth varies by up to two degrees, or four times the diameter of the full moon.

This means that if the Moon is aligned to pass in front of a particular object for an observer on one side of the Earth, it will appear up to two degrees away from that object on the other side of the Earth.

The position of Saturn at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Saturn 23h37m00s 5°05'S Aquarius 0.7 0'19"

The coordinates above are given in J2000.0.

Next/previous occultations

« Previous Next »
Visible from the Contiguous United States Worldwide Worldwide Visible from the Contiguous United States
20 Aug 2048 20 Aug 2054 Occultations of Saturn 14 Oct 2054 14 Oct 2054
30 Jul 2054 26 Aug 2054 Occultations 23 Sep 2054 14 Oct 2054

The sky on 4 Jul 2024

The sky on 4 July 2024
Sunrise
05:23
Sunset
20:28
Twilight ends
22:34
Twilight begins
03:16

28-day old moon
Waning Crescent

1%

28 days old

Planets
Rise Culm. Set
Mercury 07:01 14:23 21:45
Venus 06:02 13:31 21:01
Moon 03:35 11:45 19:58
Mars 02:02 09:05 16:07
Jupiter 03:06 10:28 17:50
Saturn 23:43 05:24 11:05
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.

Related news

16 Sep 2054  –  Saturn at opposition
09 Oct 2054  –  Equinox on Saturn
23 Nov 2054  –  Saturn ends retrograde motion
01 Feb 2055  –  Saturn ring plane crossing

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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