Lunar occultation of Beta1 Scorpii

Dominic Ford, Editor
From the Lunar Occultations feed


Objects: Acrab

The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Africa, Western Asia, Europe and western Iran. 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 Beta1 Scorpii (Acrab) 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 Beta1 Scorpii (Acrab) 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.

A complete list of the countries and territories where the occultation will be visible is as follows:

Country Time span
(UTC)
Algeria 22:23–00:29
Sudan 23:42–01:17
Saudi Arabia 23:57–01:21
Libya 23:04–00:57
Chad 23:20–01:03
Mali 22:28–00:22
Niger 22:51–00:46
Democratic Republic of the Congo 23:50–01:11
Ethiopia 00:10–01:21
Mauritania 22:17–23:58
Egypt 23:41–01:07
Turkey 23:47–00:47
Nigeria 23:01–00:49
France 22:43–23:40
Spain 22:27–23:43
Somalia 00:22–01:22
Central African Republic 23:37–01:09
Iraq 00:02–01:06
Morocco 22:16–23:51
Cameroon 23:25–00:52
Yemen 00:15–01:22
Kenya 00:21–01:16
Iran 00:06–01:09
Italy 23:06–00:06
Ivory Coast 22:49–00:05
Western Sahara 22:15–23:43
Burkina Faso 22:46–00:20
Republic of the Congo 23:46–00:55
Gabon 23:41–00:45
Guinea 22:39–23:47
Uganda 00:17–01:13
Ghana 22:53–00:15
Syria 23:58–00:50
Senegal 22:27–23:38
Greece 23:36–00:28
Tunisia 23:01–00:13
Great Britain 22:42–23:21
Eritrea 00:08–01:21
Portugal 22:24–23:34
Benin 22:59–00:24
Jordan 23:58–00:56
Liberia 22:55–23:41
Sierra Leone 22:49–23:36
Oman 00:22–01:21
Togo 22:57–00:18
Tanzania 00:32–01:01
Guinea-Bissau 22:39–23:29
Switzerland 23:11–23:32
Albania 23:37–00:03
Macedonia 23:41–00:00
United Arab Emirates 00:17–01:14
Ireland 22:36–23:17
Equatorial Guinea 23:31–00:39
Israel 23:57–00:54
Djibouti 00:20–01:21
Rwanda 00:32–01:00
Kuwait 00:10–01:08
Armenia 00:06–00:44
Qatar 00:15–01:16
The Canary Islands 22:09–23:32
Cyprus 23:54–00:39
Corsica 23:10–23:47
Gambia 22:35–23:30
Bulgaria 23:48–00:02
Lebanon 23:58–00:46
Georgia 00:06–00:33
Montenegro 23:40–23:53
Mallorca 22:51–23:45
Palestinian Territory 23:57–00:50
Azerbaijan 00:06–00:44
Cape Verde 22:27–23:01
Croatia 23:34–23:47
The Portuguese Azores 21:56–23:10
Sao Tome and Principe 23:37–00:28
Menorca 22:55–23:45
Bahrain 00:14–01:13
Burundi 00:42–00:50
Serbia 23:44–23:54
Ibiza 22:48–23:44
Andorra 22:51–23:37
Malta 23:19–00:07
Jersey 22:50–23:22
Guernsey 22:50–23:22
Melilla 22:35–23:44
RAF Akrotiri 23:55–00:39
Bosnia and Herzegovina 23:42–23:45
Gibraltar 22:30–23:39
Vatican 23:21–23:47
Monaco 23:08–23:39
San Marino 23:25–23:39
Madeira 22:10–23:24
The Savage Islands 22:11–23:26
Isla de Alborán 22:35–23:42
Islas Chafarinas 22:36–23:44

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 Beta1 Scorpii (Acrab) at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Beta1 Scorpii (Acrab) 16h05m20s 19°48'S Scorpius 2.6 0'00"

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
31 Mar 2032 09 May 2039 Occultations of Beta1 Scorpii (Acrab) 03 Jul 2039 21 Sep 2050
24 Dec 2038 27 May 2039 Occultations 03 Jul 2039 25 Sep 2039

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


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.

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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