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 and Europe. 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.

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.

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.

[Unable to display this video because your browser does not support HTML5]
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)
Mauritania 05:50–07:22
Mali 06:01–07:24
Algeria 06:01–07:48
Morocco 05:56–07:46
Spain 06:15–07:55
Western Sahara 05:50–07:19
Senegal 05:56–06:36
Portugal 06:12–07:47
Ireland 06:36–08:00
The Canary Islands 05:51–07:14
Great Britain 06:37–08:00
Cape Verde 05:55–06:19
France 06:36–07:58
Northern Ireland 06:44–08:01
Burkina Faso 06:19–06:46
The Portuguese Azores 05:57–07:11
Melilla 06:18–07:45
Gibraltar 06:16–07:41
Madeira 05:58–07:16
The Savage Islands 05:55–07:11
Isla de Alborán 06:19–07:46
Islas Chafarinas 06:19–07:46

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 20h24m00s 19°33'S Capricornus 0.5 0'15"

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
29 Dec 1983 12 Feb 1991 Occultations of Saturn 04 May 1997 18 Sep 1997
08 Feb 1991 10 Mar 1991 Occultations 22 Mar 1991 17 Jun 1992

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

45%

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.

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

23 Sep 1990  –  Saturn ends retrograde motion
16 May 1991  –  Saturn enters retrograde motion
26 Jul 1991  –  Saturn at opposition
04 Oct 1991  –  Saturn ends 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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