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

Lunar occultation of Jupiter

Dominic Ford, Editor
From the Lunar Occultations feed

Objects: Jupiter
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The sky at

The Moon will pass in front of Jupiter, creating a lunar occultation visible from the Americas, Africa and Southern 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.

The occultation will be visible from Fairfield. It will begin with the disappearance of Jupiter behind the Moon at 07:42 EDT, though in daylight. Its reappearance will be visible at 08:50 EDT, though in daylight.

Extreme caution is necessary when pointing binoculars or telescopes at the sky when the Sun is above the horizon, as even a momentary glance at the Sun through such an instrument can cause permanent blindness.

The map below shows the visibility of the occultation across the world. Separate contours show where the disappearance of Jupiter 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 Jupiter 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 Jupiter.

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)
Canada 11:29–13:27
The Contiguous United States 11:17–13:03
Algeria 13:43–15:09
Libya 14:06–14:59
Chad 14:14–15:21
Mali 13:51–15:15
Niger 14:09–15:18
Mauritania 13:43–15:11
Nigeria 14:16–15:23
Mexico 11:17–12:06
Spain 13:28–14:33
Greenland 12:27–13:18
Sudan 14:21–15:15
Morocco 13:37–14:52
Central African Republic 14:24–15:24
Cameroon 14:21–15:24
Ivory Coast 14:17–15:18
Republic of the Congo 14:30–15:25
Western Sahara 13:38–14:59
Burkina Faso 14:11–15:18
Gabon 14:32–15:25
Guinea 14:11–15:13
Ghana 14:17–15:21
Senegal 14:00–15:08
Tunisia 14:03–14:43
Egypt 14:22–14:52
Democratic Republic of the Congo 14:28–15:23
Portugal 13:29–14:31
Benin 14:17–15:21
Alaska 11:49–12:18
Liberia 14:23–15:13
Sierra Leone 14:19–15:10
Togo 14:18–15:21
France 13:46–14:09
Guinea-Bissau 14:11–15:05
Equatorial Guinea 14:31–15:25
The Canary Islands 13:30–14:48
Gambia 14:08–15:04
Cape Verde 13:58–14:46
Angola 14:44–15:23
Mallorca 13:54–14:20
The Portuguese Azores 12:50–14:20
Sao Tome and Principe 14:35–15:24
Menorca 13:58–14:14
Ibiza 13:51–14:23
Andorra 13:55–14:06
Saint Pierre and Miquelon 12:04–13:22
Melilla 13:44–14:35
Gibraltar 13:39–14:33
Madeira 13:25–14:37
The Savage Islands 13:30–14:43
Isla de Alborán 13:43–14:34
Islas Chafarinas 13:45–14:35

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.

At the time of the occultation, the Moon will be 6 days past new moon and will be 5% illuminated. Jupiter will disappear behind the illuminated side of the Moon and reappear from behind the unilluminated side of the Moon.

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

Object Right Ascension Declination Constellation Magnitude Angular Size
Jupiter 08h09m40s 20°23'N Cancer -1.8 0'31"

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
02 Apr 1983 01 Mar 1987 Occultations of Jupiter 15 Sep 1990 26 Mar 1998
14 May 1990 01 Aug 1990 Occultations 22 Aug 1990 08 Feb 1991

The sky on 9 May 2024

The sky on 9 May 2024
Sunrise
05:38
Sunset
19:58
Twilight ends
21:49
Twilight begins
03:47

1-day old moon
Waxing Crescent

6%

1 day old

Planets
Rise Culm. Set
Mercury 04:46 11:11 17:35
Venus 05:25 12:21 19:17
Moon 06:17 14:14 22:20
Mars 03:59 10:07 16:15
Jupiter 06:04 13:15 20:26
Saturn 03:17 08:56 14:35
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

24 Feb 1990  –  Jupiter ends retrograde motion
29 Nov 1990  –  Jupiter enters retrograde motion
28 Jan 1991  –  Jupiter at opposition
30 Mar 1991  –  Jupiter 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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