Lunar occultation of Antares

Dominic Ford, Editor
From the Lunar Occultations feed


Objects: Antares

The Moon will pass in front of Antares (Alpha Scorpii), creating a lunar occultation visible from Africa and Southern and Western Asia. 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 Antares (Alpha Scorpii) 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 Antares (Alpha Scorpii) 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)
Sudan 21:54–23:16
Saudi Arabia 22:04–23:42
India 23:19–01:04
Libya 21:54–23:00
Chad 21:54–22:55
Ethiopia 22:01–23:37
Egypt 21:54–23:11
Turkey 22:08–23:01
Somalia 22:08–23:45
Iraq 22:18–23:15
Kenya 22:14–23:19
Yemen 22:06–23:51
Iran 22:37–23:34
Oman 22:25–23:49
Niger 21:55–22:49
Syria 22:13–23:06
Central African Republic 22:07–22:42
Eritrea 22:01–23:25
Uganda 22:16–22:58
Jordan 22:06–23:08
United Arab Emirates 22:31–23:37
Sri Lanka 23:37–01:13
Greece 22:02–23:00
Israel 22:06–23:07
Djibouti 22:07–23:26
Democratic Republic of the Congo 22:21–22:43
Kuwait 22:29–23:17
Qatar 22:31–23:28
Cyprus 22:11–23:02
Lebanon 22:13–23:05
Maldives 23:16–00:54
Palestinian Territory 22:08–23:06
Pakistan 23:14–23:43
Nigeria 22:12–22:28
Bahrain 22:32–23:24
Cameroon 22:16–22:25
Seychelles 22:45–23:55
British Indian Ocean Territory 23:22–00:46
RAF Akrotiri 22:12–23:02

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 Antares (Alpha Scorpii) at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Antares (Alpha Scorpii) 16h29m20s 26°25'S Scorpius 1.1 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
30 Jun 2061 27 Feb 2065 Occultations of Antares (Alpha Scorpii) 23 Apr 2065 23 Apr 2065
19 Sep 2064 18 Mar 2065 Occultations 23 Apr 2065 23 Apr 2065

The sky on 3 Jul 2024

The sky on 3 July 2024
Sunrise
05:22
Sunset
20:28
Twilight ends
22:35
Twilight begins
03:15


Waning Crescent

2%

27 days old

Planets
Rise Culm. Set
Mercury 06:57 14:20 21:44
Venus 06:00 13:30 21:00
Moon 02:47 10:46 18:54
Mars 02:04 09:06 16:08
Jupiter 03:09 10:31 17:53
Saturn 23:46 05:28 11:09
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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