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

Lunar occultation of Saturn

Dominic Ford, Editor
From the Lunar Occultations feed

Objects: Saturn

The Moon will pass in front of Saturn, creating a lunar occultation visible from Oceania, Hawaii and Midway Atoll. 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 Saturn 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 Saturn 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 Saturn.

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)
Solomon Islands 06:06–07:58
Hawaii 08:36–10:03
New Caledonia 06:25–07:22
Vanuatu 06:24–07:50
Kiribati 06:52–09:33
Papua New Guinea 06:06–07:36
Fiji 07:13–07:39
Marshall Islands 06:58–08:36
Midway Atoll 08:33–09:46
Tuvalu 06:59–08:29
Wallis and Futuna 07:33–08:00
Federated States of Micronesia 06:47–07:37
Kingman Reef 08:11–09:38
Palmyra Atoll 08:12–09:37
Nauru 06:36–08:13
Baker Island 07:20–09:00
Howland Island 07:20–09:02
Jarvis Island 08:26–09:15
Johnston Atoll 08:09–09:37
Tokelau 07:38–08:32

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

Object Right Ascension Declination Constellation Magnitude Angular Size
Saturn 23h25m20s 6°15'S Aquarius 0.7 0'18"

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
14 Oct 2054 14 Oct 2054 Occultations of Saturn 07 Dec 2054 01 Nov 2058
20 Oct 2054 26 Oct 2054 Occultations 16 Nov 2054 22 Nov 2054

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 Gibbous

50%

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

09 Oct 2054  –  Equinox on Saturn
23 Nov 2054  –  Saturn ends retrograde motion
01 Feb 2055  –  Saturn ring plane crossing
21 Jul 2055  –  Saturn enters 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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