Lunar occultation of Mars

Dominic Ford, Editor
From the Lunar Occultations feed


Objects: Mars

The Moon will pass in front of Mars, creating a lunar occultation visible from Africa. 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 Mars 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 Mars 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 Mars.

[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)
Democratic Republic of the Congo 21:29–23:26
Algeria 21:14–22:08
Mali 21:09–22:12
Angola 21:35–23:11
Niger 21:11–22:20
Mauritania 21:08–22:08
Chad 21:22–22:33
Tanzania 21:52–23:47
Sudan 21:37–22:54
Nigeria 21:13–22:29
Mozambique 22:10–23:56
Zambia 21:55–23:35
Madagascar 22:39–00:20
Central African Republic 21:23–22:47
Kenya 22:01–23:29
Botswana 22:13–23:28
Cameroon 21:19–22:40
Zimbabwe 22:10–23:40
South Africa 22:29–23:36
Republic of the Congo 21:26–22:46
Ivory Coast 21:12–22:13
Burkina Faso 21:10–22:15
Gabon 21:24–22:42
Guinea 21:11–22:08
Uganda 21:50–23:11
Ghana 21:12–22:17
Namibia 22:12–23:16
Senegal 21:09–22:06
Malawi 22:05–23:45
Benin 21:12–22:19
Liberia 21:15–22:08
Western Sahara 21:10–22:03
Sierra Leone 21:14–22:06
Somalia 22:27–23:21
Ethiopia 22:12–22:50
Togo 21:12–22:18
Morocco 21:15–21:57
Guinea-Bissau 21:12–22:05
Burundi 21:50–23:13
Equatorial Guinea 21:21–22:34
Rwanda 21:50–23:10
Swaziland 22:43–23:33
Indonesia 00:32–01:12
Gambia 21:11–22:05
Mauritius 23:14–00:39
Reunion 23:10–00:36
Sao Tome and Principe 21:23–22:28
Comoros 22:31–23:58
Seychelles 22:40–00:04
Mayotte 22:37–00:02
Christmas Island 00:27–01:16
Cocos Islands 00:23–01:18
British Indian Ocean Territory 00:18–00:29

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

Object Right Ascension Declination Constellation Magnitude Angular Size
Mars 15h42m00s 18°49'S Libra -1.3 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
19 Nov 1982 21 Mar 1984 Occultations of Mars 01 Oct 1984 08 Dec 1985
29 Dec 1983 25 Mar 1984 Occultations 19 Apr 1984 21 Apr 1984

The sky on 22 Nov 2024

The sky on 22 November 2024
Sunrise
06:47
Sunset
16:28
Twilight ends
18:05
Twilight begins
05:10


Waning Crescent

47%

21 days old

Planets
Rise Culm. Set
Mercury 08:40 13:06 17:32
Venus 10:13 14:39 19:06
Moon 22:16 05:32 12:36
Mars 20:52 04:15 11:38
Jupiter 17:26 00:53 08:20
Saturn 13:09 18:41 00:13
All times shown in EST.

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 Apr 1984  –  Mars enters retrograde motion
11 May 1984  –  Mars at opposition
19 May 1984  –  Mars at perigee
19 Jun 1984  –  Mars 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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