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 and eastern Russia. 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)
China 22:33–01:02
India 22:27–23:51
Russia 23:35–01:36
Mongolia 23:16–00:29
Myanmar 22:27–23:51
Thailand 22:29–23:44
Japan 23:00–01:33
Vietnam 22:33–23:54
Laos 22:31–23:49
Cambodia 22:32–23:35
Nepal 22:40–23:42
North Korea 23:17–01:00
Bangladesh 22:32–23:43
South Korea 23:10–00:59
Philippines 22:57–00:11
Taiwan 22:52–00:24
Bhutan 22:40–23:45
Indonesia 22:36–23:09
Pakistan 23:01–23:30
Hawaii 02:02–03:12
Malaysia 22:43–23:05
Hong Kong 22:43–00:04
Kiribati 02:30–03:15
Midway Atoll 01:43–03:07
Kingman Reef 02:24–03:16
Palmyra Atoll 02:25–03:16
Paracel Islands 22:42–23:46
Macao 22:42–00:02
Marshall Islands 01:59–02:34
Johnston Atoll 02:02–03:14
Midway Islands 01:33–02:56
Wake Island 01:28–02:39

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 05h03m30s 21°07'N Taurus -0.5 0'06"

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
05 Jun 2065 25 May 2066 Occultations of Mercury 19 Aug 2069 10 May 2078
21 Apr 2068 14 Jun 2068 Occultations 08 Jul 2068 14 Mar 2069

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

46%

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

23 Jun 2068  –  Mercury at highest altitude in morning sky
15 Aug 2068  –  Mercury at highest altitude in evening sky
27 Aug 2068  –  Mercury at greatest elongation east
09 Oct 2068  –  Mercury at highest altitude in morning sky

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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