Lunar occultation of Venus

Dominic Ford, Editor
From the Lunar Occultations feed


Objects: Venus

The Moon will pass in front of Venus, creating a lunar occultation visible from Central America, South America, Polynesia and Micronesia. 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 Venus 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 Venus 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 Venus.

[Unable to display this video because your browser does not support HTML5]
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)
Mexico 20:42–21:39
Ecuador 20:32–21:47
Peru 20:47–21:37
Nicaragua 20:40–21:47
Honduras 20:41–21:45
Guatemala 20:41–21:42
Panama 20:40–21:40
Costa Rica 20:39–21:48
Colombia 20:42–21:34
Belize 20:44–21:39
French Polynesia 17:45–20:14
El Salvador 20:41–21:44
Kiribati 16:55–18:50
Samoa 17:30–18:06
Marshall Islands 16:51–17:59
American Samoa 17:31–18:13
Cook Islands 17:19–19:00
Tuvalu 17:12–17:57
Kingman Reef 17:06–18:29
Palmyra Atoll 17:06–18:31
Nauru 17:03–17:50
Pitcairn 19:18–20:02
Wallis and Futuna 17:42–17:44
Baker Island 16:55–18:12
Clipperton Island 20:27–21:19
Howland Island 16:54–18:12
Jarvis Island 17:08–18:46
Johnston Atoll 17:15–17:55
Tokelau 17:11–18:16

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 Venus at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Venus 16h47m00s 21°18'S Ophiuchus -4.0 0'11"

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
07 Feb 1951 01 Sep 1956 Occultations of Venus 21 Jan 1958 11 Mar 1959
03 Mar 1956 25 Dec 1956 Occultations 22 Jan 1957 01 Sep 1957

The sky on 17 Jul 2024

The sky on 17 July 2024
Sunrise
05:32
Sunset
20:22
Twilight ends
22:22
Twilight begins
03:31


Waxing Gibbous

84%

12 days old

Planets
Rise Culm. Set
Mercury 07:50 14:44 21:39
Venus 06:31 13:47 21:04
Moon 17:22 21:50 02:13
Mars 01:38 08:51 16:03
Jupiter 02:25 09:49 17:12
Saturn 22:51 04:32 10:13
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.

Related news

13 Sep 1956  –  Venus at highest altitude in morning sky
18 Nov 1957  –  Venus at greatest elongation east
24 Dec 1957  –  Venus at highest altitude in evening sky
08 Apr 1958  –  Venus at greatest elongation west

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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