Astronomy,  News

Monthly Stargazing Calendar for May 2013

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Just like last month, this will be another very eventful month when it comes to astronomical events. There will be a meteor shower, two eclipses and a conjunction.

First of all, on the night of May 4 and 5 the Eta Aquarids meteor shower will peak. The Eta Aquarids is an above average shower, producing up to 60 meteors per hour at its peak. However, most of the activity is seen in the Southern Hemisphere. In the Northern Hemisphere, the rate can reach only about 30 meteors per hour. This meteor shower originates from the dust particles left behind by comet Halley, which has been known and observed since ancient times. The shower runs annually from April 19 to May 28. Unfortunately the second quarter moon will block out some of the less bright meteors this year but you should still be able to see most of them if you are viewing from a dark location. Meteors will appear to radiate from the constellation Aquarius, but can appear anywhere in the sky.

Aquarius Constellation Map IAU
Aquarius Constellation Map. Credit: IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg). License: CC BY 3.0.
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Then on May 10 there will be an annular solar eclipse. An annular solar eclipse occurs when the Moon is too far away from the Earth to completely cover the Sun which results in a ring of light around the darkened Moon. This means that the Sun’s corona will not be visible during an annular eclipse. The path of the eclipse will begin in western Australia and move east across the central Pacific Ocean. You can see the exact path as well as some additional information on the graphic below supplied by NASA.

Annular Solar Eclipse May 10 2013

On May 28 there will be a conjunction of Venus and Jupiter. Conjunctions are rare events where two or more celestial bodies will appear extremely close together in the night sky. The two bright planets will be within 1 degree of each other in the evening sky. The planet Mercury will also will also be visible nearby.

Finally, on May 25 the will be a penumbral lunar eclipse. A penumbral lunar eclipse occurs when the Moon passes through the Earth’s partial shadow, or penumbra, and the Moon will darken slightly but not completely. The eclipse will be visible throughout most of North America, South America, western Europe, and western Africa. For more information consult the graphic below supplied by NASA.

Penumbral Lunar Eclipse May 25 2013

Moon phases

As you know, the Moon has a big impact on the visibility of celestial bodies in the night sky. So here are the Moon’s phases for this month:

Moon Phases Calendar May 2013

Positions of the planets this month

Mercury: The closest planet to the Sun can be seen at dawn and dusk travelling across the constellations of Taurus, not far from the planets Venus, Jupiter, and Mars. This planet, being the closest to the Sun, will appear to move quickly in the night sky and its position will change in the following weeks.

Venus: The sister planet can be seen in the constellation of Taurus. Just like Mercury, Venus can only be seen at dawn and dusk.

Mars: The red planet can be seen between the constellations of Pisces and Taurus.

Jupiter: The gas giant is visible in the constellation of Taurus. Jupiter can easily be spotted with the naked eye, even in highly illuminated cities.

Saturn: The ringed giant can be seen with the naked eye between the constellations of Virgo and Libra.

Uranus: The gas giant can be seen between the constellations of Pisces and Cetus with the use of a telescope.

Neptune: The blue giant requires a telescope pointed in the constellation of Aquarius in order to be seen.

Major astronomical events next month

  • June 12 – Mercury at Greatest Eastern Elongation.
  • June 21 – June Solstice.

See also:

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Paul Tomaszewski is a science & tech writer as well as a programmer and entrepreneur. He is the founder and editor-in-chief of CosmoBC. He has a degree in computer science from John Abbott College, a bachelor's degree in technology from the Memorial University of Newfoundland, and completed some business and economics classes at Concordia University in Montreal. While in college he was the vice-president of the Astronomy Club. In his spare time he is an amateur astronomer and enjoys reading or watching science-fiction. You can follow him on LinkedIn and Twitter.

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