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

Lunar occultation of Delta Scorpii

Dominic Ford, Editor
From the Lunar Occultations feed

Objects: Dschubba

The Moon will pass in front of Delta Scorpii (Dschubba), creating a lunar occultation visible from Sub-Saharan Africa and South America. 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 Delta Scorpii (Dschubba) 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 Delta Scorpii (Dschubba) 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)
Brazil 23:26–00:45
South Africa 01:32–03:09
Angola 01:17–02:56
Namibia 01:17–02:59
Mozambique 01:59–03:17
Zambia 01:45–03:06
Botswana 01:36–03:07
Zimbabwe 01:50–03:11
Tanzania 02:16–03:11
Madagascar 02:15–03:21
Democratic Republic of the Congo 01:56–03:00
Venezuela 23:23–00:11
Guyana 23:24–00:12
Suriname 23:25–00:15
Malawi 02:08–03:12
French Guiana 23:25–00:17
Swaziland 01:57–03:08
Trinidad and Tobago 23:21–00:12
Comoros 02:22–03:17
Saint Vincent and the Grenadines 23:22–00:12
Barbados 23:19–00:12
Martinique 23:24–00:12
Saint Lucia 23:23–00:12
Saint Helena 00:03–01:53
Grenada 23:22–00:11
Lesotho 01:53–03:01

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 Delta Scorpii (Dschubba) at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Delta Scorpii (Dschubba) 16h00m20s 22°37'S Scorpius 2.3 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
12 Mar 2004 08 Apr 2004 Occultations of Delta Scorpii (Dschubba) 02 Jun 2004 04 Sep 2011
12 Mar 2004 11 Apr 2004 Occultations 08 May 2004 09 Nov 2004

The sky on 2 Jun 2024

The sky on 2 June 2024
Sunrise
05:06
Sunset
20:15
Twilight ends
22:25
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02:57

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Planets
Rise Culm. Set
Mercury 04:28 11:43 18:58
Venus 05:08 12:38 20:09
Moon 02:33 09:09 16:01
Mars 02:57 09:31 16:06
Jupiter 04:36 11:55 19:15
Saturn 01:39 07:19 12:59
All times shown in EDT.

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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Cambridge

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42.38°N
71.11°W
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