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 the Americas. 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 Cambridge, though it will be visible elsewhere in the Contiguous United States.

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)
Mexico 05:20–07:08
The Contiguous United States 05:41–07:22
Colombia 05:53–07:52
Brazil 06:23–08:08
Venezuela 06:10–08:12
Peru 06:05–07:20
Ecuador 05:36–07:19
Guyana 06:47–08:13
Suriname 07:00–08:13
Cuba 06:01–07:44
Nicaragua 05:42–07:18
Honduras 05:40–07:18
Guatemala 05:36–07:05
Panama 05:47–07:30
French Guiana 07:14–08:13
Costa Rica 05:43–07:17
Dominican Republic 06:23–08:01
Haiti 06:18–07:52
Bahamas 06:22–07:47
Belize 05:43–07:06
El Salvador 05:38–07:06
Jamaica 06:08–07:39
Puerto Rico 06:35–08:09
Trinidad and Tobago 06:44–08:16
Guadeloupe 06:47–08:19
Saint Vincent and the Grenadines 06:46–08:17
Turks and Caicos Islands 06:30–07:53
Barbados 06:51–08:20
British Virgin Islands 06:42–08:12
Cayman Islands 06:03–07:24
Martinique 06:48–08:19
Curacao 06:24–07:57
Saint Kitts and Nevis 06:46–08:16
Saint Lucia 06:47–08:18
U.S. Virgin Islands 06:41–08:12
Antigua and Barbuda 06:48–08:18
Dominica 06:47–08:18
Anguilla 06:45–08:16
Bonaire, Saint Eustatius and Saba 06:26–08:15
Grenada 06:45–08:16
Bermuda 07:09–08:00
Montserrat 06:46–08:17
Aruba 06:21–07:54
Sint Maarten 06:46–08:16
Saint Barthelemy 06:46–08:16
Saint Martin 06:45–08:15
Clipperton Island 05:17–06:22
Navassa Island 06:16–07:42

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 20h55m20s 18°01'S Capricornus 0.3 0'18"

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
31 Mar 1962 25 May 1962 Occultations of Saturn 18 Jul 1962 11 Sep 1962
12 May 1962 08 Jun 1962 Occultations 29 Jun 1962 11 Sep 1962

The sky on 26 Jun 2024

The sky on 26 June 2024
Sunrise
05:06
Sunset
20:25
Twilight ends
22:39
Twilight begins
02:51

20-day old moon
Waning Gibbous

73%

20 days old

Planets
Rise Culm. Set
Mercury 06:06 13:46 21:25
Venus 05:33 13:12 20:50
Moon 23:29 04:41 10:05
Mars 02:06 09:05 16:03
Jupiter 03:19 10:44 18:08
Saturn 00:06 05:47 11:27
All times shown in EDT.

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

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

21 May 1962  –  Saturn enters retrograde motion
31 Jul 1962  –  Saturn at opposition
09 Oct 1962  –  Saturn ends retrograde motion
03 Jun 1963  –  Saturn enters retrograde motion

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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