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 countries and territories including Venezuela, Colombia, northern Guyana and eastern Cuba amongst others. 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 Columbus, though it will be visible from eastern parts of the Contiguous United States.

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)
Venezuela 21:46–23:28
Colombia 21:37–23:25
Guyana 22:34–23:20
Cuba 21:31–23:22
Dominican Republic 21:48–23:31
Haiti 21:40–23:26
Bahamas 21:35–23:23
Canada 22:24–22:46
Jamaica 21:30–23:19
Puerto Rico 22:00–23:33
Brazil 22:31–23:05
Trinidad and Tobago 22:22–23:28
Guadeloupe 22:13–23:35
Saint Vincent and the Grenadines 22:19–23:32
Turks and Caicos Islands 21:49–23:26
The Contiguous United States 22:00–22:45
Barbados 22:23–23:32
British Virgin Islands 22:05–23:34
Martinique 22:17–23:34
Curacao 21:58–23:27
Saint Kitts and Nevis 22:10–23:35
Saint Lucia 22:17–23:33
U.S. Virgin Islands 22:05–23:34
Antigua and Barbuda 22:12–23:35
Dominica 22:15–23:34
Anguilla 22:09–23:35
Bonaire, Saint Eustatius and Saba 22:01–23:35
Grenada 22:19–23:31
Bermuda 22:06–23:21
Montserrat 22:12–23:35
Aruba 21:54–23:27
Sint Maarten 22:10–23:35
Saint Barthelemy 22:10–23:35
Saint Martin 22:09–23:35
Navassa Island 21:38–23:21

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 19h03m40s 24°01'S Sagittarius 1.0 0'05"

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
01 Mar 1974 24 Sep 1981 Occultations of Mars 22 Feb 1984 08 Dec 1985
01 Nov 1980 18 Nov 1982 Occultations 08 Feb 1983 02 Apr 1983

The sky on 22 Nov 2024

The sky on 22 November 2024
Sunrise
07:23
Sunset
17:10
Twilight ends
18:45
Twilight begins
05:47


Waning Gibbous

52%

21 days old

Planets
Rise Culm. Set
Mercury 09:15 13:45 18:15
Venus 10:48 15:18 19:49
Moon 22:59 06:12 13:13
Mars 21:34 04:54 12:13
Jupiter 18:09 01:32 08:56
Saturn 13:47 19:20 00:53
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

11 May 1982  –  Mars ends retrograde motion
05 Apr 1984  –  Mars enters retrograde motion
11 May 1984  –  Mars at opposition
19 May 1984  –  Mars at perigee

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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