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

Lunar occultation of Beta Tauri

Dominic Ford, Editor
From the Lunar Occultations feed

Objects: Elnath

The Moon will pass in front of Beta Tauri (Elnath), creating a lunar occultation visible from the Americas. 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, though it will be visible from south-eastern parts of the Contiguous United States.

The map below shows the visibility of the occultation across the world. Separate contours show where the disappearance of Beta Tauri (Elnath) 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 Beta Tauri (Elnath) 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 06:17–08:48
Colombia 05:43–07:50
Venezuela 06:00–08:15
Peru 05:47–07:19
Mexico 05:33–06:51
Ecuador 05:16–07:14
Guyana 06:40–08:21
Suriname 06:51–08:28
Cuba 06:01–07:30
Nicaragua 05:33–07:08
Honduras 05:34–07:06
Guatemala 05:32–06:51
Panama 05:35–07:23
French Guiana 07:02–08:33
Costa Rica 05:32–07:08
Dominican Republic 06:12–07:48
Haiti 06:07–07:39
Bahamas 06:14–07:31
Belize 05:39–06:50
The Contiguous United States 06:18–06:57
El Salvador 05:33–06:54
Jamaica 05:59–07:26
Puerto Rico 06:24–07:56
Trinidad and Tobago 06:35–08:14
Guadeloupe 06:37–08:08
Saint Vincent and the Grenadines 06:36–08:11
Turks and Caicos Islands 06:20–07:37
Barbados 06:42–08:15
British Virgin Islands 06:31–07:58
Cayman Islands 05:56–07:10
Martinique 06:37–08:11
Curacao 06:13–07:51
Saint Kitts and Nevis 06:35–08:05
Saint Lucia 06:37–08:11
U.S. Virgin Islands 06:30–07:59
Antigua and Barbuda 06:37–08:06
Dominica 06:37–08:09
Anguilla 06:35–08:02
Bonaire, Saint Eustatius and Saba 06:16–08:02
Grenada 06:35–08:11
Montserrat 06:36–08:05
Aruba 06:10–07:47
Sint Maarten 06:35–08:02
Saint Barthelemy 06:35–08:02
Saint Martin 06:35–08:02
Clipperton Island 05:26–05:54
Navassa Island 06:05–07:29

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 Beta Tauri (Elnath) at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Beta Tauri (Elnath) 05h26m10s 28°36'N Taurus 1.7 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
14 Sep 2006 11 Oct 2006 Occultations of Beta Tauri (Elnath) 05 Dec 2006 21 Oct 2024
14 Sep 2006 01 Nov 2006 Occultations 18 Nov 2006 26 Apr 2007

The sky on 3 Dec 2024

The sky on 3 December 2024
Sunrise
06:54
Sunset
16:11
Twilight ends
17:52
Twilight begins
05:13

2-day old moon
Waxing Crescent

9%

2 days old

Planets
Rise Culm. Set
Mercury 07:21 11:57 16:33
Venus 10:13 14:43 19:14
Moon 09:36 13:42 17:50
Mars 20:01 03:29 10:56
Jupiter 16:21 23:51 07:22
Saturn 12:19 17:50 23:21
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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Cambridge

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42.38°N
71.11°W
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