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 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 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 23:10–00:30
Libya 23:36–00:32
France 22:47–00:18
Spain 22:46–00:18
Mauritania 23:13–00:17
Morocco 23:02–00:21
Italy 23:06–00:29
Germany 22:55–00:16
Western Sahara 23:06–00:13
Mali 23:26–00:18
Tunisia 23:23–00:30
Great Britain 22:43–00:02
Portugal 22:49–00:10
Ireland 22:35–23:53
Netherlands 22:54–00:06
Switzerland 23:04–00:16
Belgium 22:54–00:08
Austria 23:07–00:18
Croatia 23:14–00:24
Slovenia 23:13–00:20
The Canary Islands 22:54–00:05
Corsica 23:13–00:22
Mallorca 23:10–00:20
Luxembourg 22:59–00:09
The Portuguese Azores 22:16–23:38
Northern Ireland 22:37–23:50
Menorca 23:11–00:20
Ibiza 23:09–00:19
Andorra 23:04–00:14
Malta 23:33–00:30
Jersey 22:50–00:01
Guernsey 22:49–00:01
Melilla 23:08–00:17
Gibraltar 23:02–00:13
Vatican 23:19–00:23
Liechtenstein 23:07–00:14
Monaco 23:10–00:17
San Marino 23:15–00:21
Madeira 22:48–23:58
The Savage Islands 22:55–00:00
Isla de Alborán 23:07–00:16
Islas Chafarinas 23:09–00:18

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
19 May 2076 15 Jun 2076 Occultations of Beta1 Scorpii (Acrab) 09 Aug 2076 22 Dec 2087
19 May 2076 27 Jun 2076 Occultations 14 Jul 2076 19 Feb 2077

The sky on 22 Nov 2024

The sky on 22 November 2024
Sunrise
06:41
Sunset
16:16
Twilight ends
17:55
Twilight begins
05:02


Waning Crescent

44%

21 days old

Planets
Rise Culm. Set
Mercury 08:36 12:57 17:19
Venus 10:09 14:31 18:53
Moon 22:03 05:23 12:29
Mars 20:40 04:06 11:33
Jupiter 17:14 00:45 08:16
Saturn 13:02 18:32 00:03
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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