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

Lunar occultation of Mercury

Dominic Ford, Editor
From the Lunar Occultations feed

Objects: Mercury

The Moon will pass in front of Mercury, creating a lunar occultation visible from Asia, Australia, Africa, western Russia and Papua New Guinea. 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 Mercury 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 Mercury 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 Mercury.

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)
Australia 07:48–09:09
China 05:01–07:40
India 04:54–07:43
Saudi Arabia 04:32–05:46
Indonesia 06:25–08:56
Iran 04:35–06:04
Kazakhstan 04:48–06:02
Pakistan 04:43–06:24
Turkey 04:35–05:41
Afghanistan 04:43–06:14
Myanmar 05:40–07:51
Egypt 04:32–05:35
Russia 04:44–05:41
Turkmenistan 04:41–06:04
Uzbekistan 04:48–06:05
Thailand 05:56–08:05
Iraq 04:33–05:44
Papua New Guinea 08:01–08:57
Sudan 04:34–05:30
Vietnam 06:06–08:07
Malaysia 06:29–08:30
Oman 04:42–05:54
Kyrgyzstan 04:58–06:08
Laos 06:01–07:52
Syria 04:33–05:39
Philippines 07:06–08:24
Tajikistan 04:53–06:14
Cambodia 06:18–08:00
Nepal 05:08–06:56
Yemen 04:51–05:33
Ukraine 04:53–05:27
Bangladesh 05:26–07:15
Azerbaijan 04:40–05:44
Jordan 04:32–05:38
Georgia 04:43–05:40
United Arab Emirates 04:41–05:52
Eritrea 04:46–05:20
Bhutan 05:27–07:01
Romania 04:53–05:25
Bulgaria 04:48–05:28
Armenia 04:40–05:41
Israel 04:32–05:36
Sri Lanka 06:06–06:41
Kuwait 04:34–05:44
East Timor 07:39–08:56
Qatar 04:38–05:46
Cyprus 04:34–05:35
Lebanon 04:33–05:36
Greece 04:37–05:32
Moldova 05:01–05:20
Brunei 07:02–08:24
Palestinian Territory 04:32–05:36
Bahrain 04:37–05:44
Singapore 06:49–08:17
RAF Akrotiri 04:34–05:35
Paracel Islands 06:45–07:45
Christmas Island 07:27–08:28
Spratly Islands 06:57–08:04

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

Object Right Ascension Declination Constellation Magnitude Angular Size
Mercury 10h12m20s 12°20'N Leo -0.5 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
10 May 2078 08 Mar 2081 Occultations of Mercury 05 Sep 2081 17 Jun 2088
18 Mar 2081 01 Aug 2081 Occultations 13 Aug 2081 17 Jan 2082

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

21-day old moon
Waning Crescent

44%

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

26 Jun 2081  –  Mercury at highest altitude in morning sky
18 Aug 2081  –  Mercury at highest altitude in evening sky
30 Aug 2081  –  Mercury at greatest elongation east
11 Oct 2081  –  Mercury at greatest elongation west

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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