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

Lunar occultation of Aldebaran

Dominic Ford, Editor
From the Lunar Occultations feed

Objects: Aldebaran

The Moon will pass in front of Aldebaran (Alpha Tauri), creating a lunar occultation visible from countries and territories including Russia, Greenland, north-eastern China and Mongolia amongst others.

Unfortunately the occultation will not be visible from Seattle, though a close conjunction between the pair will be more widely visible.

The map below shows the visibility of the occultation across the world. Separate contours show where the disappearance of Aldebaran (Alpha Tauri) 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 of the contours, the Moon does not pass in front of Aldebaran (Alpha Tauri) at any time, or is below the horizon at the time of the occultation. However, a close conjunction between the pair may be visible.

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
Russia 08:31–18:24
Greenland 09:27–19:13
China 17:59–18:55
Mongolia 17:20–18:34
Sweden 13:24–05:16
Canada 18:42–19:05
Norway 13:19–05:10
Finland 13:22–05:13
Kazakhstan 14:02–18:35
Ukraine 21:07–05:48
Germany 13:02–19:45
Poland 13:00–05:32
Svalbard 12:57–20:23
Belarus 14:07–05:31
Romania 21:02–05:47
Hungary 21:00–05:36
Latvia 14:02–05:21
Czechia 13:09–05:29
Lithuania 12:55–05:24
Austria 13:21–02:14
Estonia 13:53–05:18
Denmark 12:58–05:17
Iceland 12:41–19:14
Slovakia 21:03–05:33
Croatia 20:54–02:21
Serbia 20:57–02:16
Bosnia and Herzegovina 20:56–02:19
Netherlands 13:08–19:38
Moldova 21:10–05:43
Slovenia 20:57–02:16
Italy 13:27–20:23
Faroe Islands 12:51–04:56
Great Britain 19:12–19:49
Shetland 12:53–05:01
Aland Islands 13:54–05:12
Orkney 12:58–05:00
Svalbard and Jan Mayen 13:01–04:50

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 Aldebaran (Alpha Tauri) at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Aldebaran (Alpha Tauri) 04h35m50s 16°30'N Taurus 1.0 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
12 Oct 2033 02 Jan 2034 Occultations of Aldebaran (Alpha Tauri) 25 Feb 2034 25 Feb 2034
25 Jan 2034 25 Jan 2034 Occultations 22 Feb 2034 25 Feb 2034

The sky on 29 Jan 2034

The sky on 29 January 2034
Twilight ends
Twilight begins

9-day old moon
Waxing Gibbous


9 days old

Rise Culm. Set
Mercury 08:18 13:30 18:41
Venus 08:03 12:46 17:30
Moon 12:56 20:35 04:17
Mars 09:51 16:15 22:39
Jupiter 08:55 14:21 19:46
Saturn 14:48 22:38 06:29
All times shown in PST.


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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