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 Africa and Europe. 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 Cambridge.

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)
Algeria 05:07–06:29
Libya 05:08–06:49
Niger 05:10–06:27
Chad 05:12–06:38
Mali 05:10–05:57
Italy 05:18–06:43
Germany 05:34–06:40
Serbia 05:38–06:49
France 05:20–06:33
Hungary 05:43–06:47
Greece 05:30–06:50
Poland 05:52–06:47
Switzerland 05:29–06:36
Bosnia and Herzegovina 05:36–06:45
Romania 05:47–06:49
Morocco 05:10–06:17
Nigeria 05:25–06:03
Albania 05:33–06:47
Slovakia 05:50–06:47
Macedonia 05:37–06:49
Croatia 05:34–06:44
Montenegro 05:36–06:45
Spain 05:18–06:28
Czechia 05:44–06:40
Austria 05:35–06:38
Corsica 05:23–06:34
Ukraine 05:56–06:47
Mallorca 05:15–06:26
Tunisia 05:11–06:30
Bulgaria 05:42–06:49
Menorca 05:16–06:27
Ibiza 05:14–06:24
Cameroon 05:28–06:01
Malta 05:19–06:37
Liechtenstein 05:35–06:36
Monaco 05:25–06:32

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 19h04m10s 22°09'S Sagittarius 0.5 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
21 Feb 2002 25 Oct 2014 Occultations of Saturn 01 Mar 2019 17 Sep 2024
10 Jul 2018 31 Jan 2019 Occultations 01 Mar 2019 18 Feb 2020

The sky on 2 Feb 2019

The sky on 2 February 2019
Sunrise
06:55
Sunset
16:58
Twilight ends
18:35
Twilight begins
05:19

27-day old moon
Waning Crescent

3%

27 days old

Planets
Rise Culm. Set
Mercury 07:15 12:09 17:04
Venus 04:05 08:47 13:29
Moon 05:36 10:15 14:55
Mars 09:37 16:13 22:48
Jupiter 03:25 08:01 12:37
Saturn 05:22 09:58 14:35
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

06 Sep 2018  –  Saturn ends retrograde motion
29 Apr 2019  –  Saturn enters retrograde motion
09 Jul 2019  –  Saturn at opposition
18 Sep 2019  –  Saturn 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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