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

Lunar occultation of Uranus

Dominic Ford, Editor
From the Lunar Occultations feed

Objects: Uranus
Please wait
Loading 0/4
Click and drag to rotate
Mouse wheel to zoom in/out
Touch with mouse to dismiss
The sky at

The Moon will pass in front of Uranus, creating a lunar occultation visible from Canada, the Contiguous United States and Bermuda. 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.

The occultation will be visible from Cambridge. It will begin with the disappearance of Uranus behind the Moon at 03:58 EST in the southern sky at an altitude of 30.8 degrees. Its reappearance will be visible at 05:13 EST at an altitude of 32.5 degrees.

The map below shows the visibility of the occultation across the world. Separate contours show where the disappearance of Uranus 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 Uranus 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 Uranus.

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)
Canada 08:31–10:33
The Contiguous United States 08:34–10:20
Bermuda 09:21–10:27

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.

At the time of the occultation, the Moon will be 6 days past new moon and will be 59% illuminated. Uranus will disappear behind the illuminated side of the Moon and reappear from behind the unilluminated side of the Moon.

The position of Uranus at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Uranus 14h39m10s 15°02'S Libra 5.5 0'03"

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
16 Nov 1968 14 Jan 1977 Occultations of Uranus 09 Mar 1977 03 May 1977
28 Aug 1976 14 Jan 1977 Occultations 09 Mar 1977 03 May 1977

The sky on 24 May 2024

The sky on 24 May 2024
Sunrise
05:12
Sunset
20:08
Twilight ends
22:12
Twilight begins
03:07

16-day old moon
Waning Gibbous

97%

16 days old

Planets
Rise Culm. Set
Mercury 04:23 11:16 18:09
Venus 05:07 12:27 19:48
Moon 20:44 01:09 05:29
Mars 03:17 09:42 16:07
Jupiter 05:04 12:22 19:40
Saturn 02:13 07:52 13:32
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

11 Jul 1976  –  Uranus ends retrograde motion
14 Feb 1977  –  Uranus enters retrograde motion
30 Apr 1977  –  Uranus at opposition
16 Jul 1977  –  Uranus ends retrograde motion

Image credit

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

Share

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

Color scheme