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

Lunar occultation of Uranus

Dominic Ford, Editor
From the Lunar Occultations feed

Objects: Uranus

The Moon will pass in front of Uranus, creating a lunar occultation visible from Africa and South America. 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 Uranus 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 Uranus 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 Uranus.

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)
Democratic Republic of the Congo 01:10–02:19
Angola 00:59–02:11
Nigeria 01:23–02:17
Zambia 01:11–02:05
Chad 01:30–02:19
Namibia 00:59–01:49
Central African Republic 01:22–02:20
Cameroon 01:20–02:18
Republic of the Congo 01:11–02:19
Sudan 01:27–02:20
Zimbabwe 01:15–01:48
Gabon 01:11–02:17
Botswana 01:11–01:44
Tanzania 01:18–02:11
Ghana 01:25–02:08
Ivory Coast 01:26–02:02
Uruguay 23:09–23:49
Benin 01:28–02:10
Argentina 22:56–23:47
Mozambique 01:18–01:51
Niger 01:46–02:10
Togo 01:28–02:09
Brazil 23:14–23:49
Uganda 01:22–02:09
Burundi 01:20–02:12
Equatorial Guinea 01:18–02:16
Rwanda 01:21–02:13
Liberia 01:28–01:52
Malawi 01:19–01:57
South Georgia and the South Sandwich Islands 23:09–00:07
Sao Tome and Principe 01:15–02:14
Saint Helena 00:01–01:45

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 Uranus at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Uranus 22h53m00s 7°58'S Aquarius 5.8 0'03"

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
19 Oct 1999 07 Sep 2006 Occultations of Uranus 01 Nov 2006 11 Sep 2014
14 Sep 2006 28 Sep 2006 Occultations 11 Oct 2006 08 Nov 2006

The sky on 18 May 2024

The sky on 18 May 2024
Sunrise
05:29
Sunset
20:07
Twilight ends
22:03
Twilight begins
03:33

10-day old moon
Waxing Gibbous

83%

10 days old

Planets
Rise Culm. Set
Mercury 04:37 11:15 17:53
Venus 05:21 12:29 19:38
Moon 15:23 21:31 03:28
Mars 03:39 09:57 16:15
Jupiter 05:35 12:49 20:02
Saturn 02:43 08:23 14:03
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

05 Sep 2006  –  Uranus at opposition
20 Nov 2006  –  Uranus ends retrograde motion
23 Jun 2007  –  Uranus enters retrograde motion
09 Sep 2007  –  Uranus at opposition

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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