Lunar occultation of Spica

Dominic Ford, Editor
From the Lunar Occultations feed


Objects: Spica

The Moon will pass in front of Spica (Alpha Virginis), creating a lunar occultation visible from Asia, western Russia and Europe. 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 Columbus.

The map below shows the visibility of the occultation across the world. Separate contours show where the disappearance of Spica (Alpha Virginis) 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 Spica (Alpha Virginis) 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)
Russia 23:13–01:13
Kazakhstan 23:48–01:30
Iran 23:58–01:34
Turkey 23:32–01:07
Sweden 23:06–00:21
Ukraine 23:18–00:51
Norway 23:02–00:24
Finland 23:13–00:29
Saudi Arabia 00:09–01:15
Afghanistan 00:30–01:38
Turkmenistan 00:06–01:33
Uzbekistan 00:06–01:34
Germany 23:05–00:09
Iraq 00:00–01:15
Poland 23:09–00:24
Great Britain 22:58–23:50
France 23:06–23:52
Italy 23:14–00:04
Belarus 23:17–00:36
Romania 23:20–00:35
Pakistan 00:44–01:38
Syria 23:54–01:03
Greece 23:31–00:29
Bulgaria 23:25–00:33
Hungary 23:16–00:22
Serbia 23:20–00:21
Ireland 23:00–23:38
Latvia 23:14–00:29
Czechia 23:10–00:14
Azerbaijan 23:56–01:13
Lithuania 23:14–00:27
Austria 23:13–00:11
Jordan 00:04–00:56
Georgia 23:46–01:07
Estonia 23:14–00:27
Denmark 23:04–00:11
Croatia 23:17–00:13
Tajikistan 00:29–01:35
Slovakia 23:15–00:22
Bosnia and Herzegovina 23:20–00:13
Netherlands 23:04–23:57
Switzerland 23:12–23:54
Egypt 00:09–00:39
United Arab Emirates 00:51–01:24
Belgium 23:06–23:52
Moldova 23:25–00:35
Armenia 23:55–01:09
Macedonia 23:28–00:20
Albania 23:27–00:13
Slovenia 23:16–00:08
Oman 00:49–01:25
Northern Ireland 23:00–23:40
Israel 00:02–00:47
Kyrgyzstan 00:27–01:33
Montenegro 23:24–00:13
Kuwait 00:25–01:14
Qatar 00:45–01:17
Cyprus 23:54–00:46
Lebanon 23:59–00:50
Faroe Islands 22:58–23:51
Palestinian Territory 00:05–00:45
Luxembourg 23:08–23:51
Shetland 22:59–23:55
Aland Islands 23:12–00:19
Orkney 22:59–23:51
Bahrain 00:43–01:15
Isle of Man 23:01–23:40
Jersey 23:12–23:28
Guernsey 23:11–23:29
RAF Akrotiri 23:55–00:44
Vatican 23:30–23:46
Liechtenstein 23:13–23:53
San Marino 23:21–23:54

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 Spica (Alpha Virginis) at the moment of the occultation will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Spica (Alpha Virginis) 13h25m10s 11°09'S Virgo 1.1 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
23 Jan 1995 19 Feb 1995 Occultations of Spica (Alpha Virginis) 15 Apr 1995 15 Apr 1995
22 Feb 1995 22 Feb 1995 Occultations 15 Apr 1995 15 Apr 1995

The sky on 25 Nov 2024

The sky on 25 November 2024
Sunrise
07:26
Sunset
17:08
Twilight ends
18:44
Twilight begins
05:50


Waning Crescent

24%

24 days old

Planets
Rise Culm. Set
Mercury 09:05 13:37 18:09
Venus 10:50 15:22 19:54
Moon 02:03 08:14 14:15
Mars 21:24 04:44 12:04
Jupiter 17:56 01:19 08:42
Saturn 13:35 19:08 00:41
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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