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 countries and territories including Australia, eastern Indonesia, Papua New Guinea and Solomon Islands amongst others. 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 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.

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)
Australia 15:16–16:42
Indonesia 15:19–16:43
Papua New Guinea 15:27–17:08
Solomon Islands 15:53–17:18
East Timor 15:19–16:21
Kiribati 16:39–18:15
Federated States of Micronesia 15:51–17:42
Marshall Islands 16:23–18:11
Guam 16:04–16:42
Northern Mariana Islands 16:09–16:41
Palau 15:50–16:19
Nauru 16:21–17:48
Wake Island 16:42–17:44

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
09 Feb 2044 07 Sep 2061 Occultations of Beta Tauri (Elnath) 01 Nov 2061 09 Feb 2063
20 Aug 2061 20 Sep 2061 Occultations 11 Oct 2061 03 Jan 2062

The sky on 26 Nov 2024

The sky on 26 November 2024
Sunrise
06:46
Sunset
16:13
Twilight ends
17:53
Twilight begins
05:06


Waning Crescent

16%

25 days old

Planets
Rise Culm. Set
Mercury 08:21 12:45 17:10
Venus 10:11 14:36 19:00
Moon 02:14 08:04 13:43
Mars 20:26 03:53 11:20
Jupiter 16:56 00:27 07:58
Saturn 12:46 18:17 23:48
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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