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5 Sky Events This Week: Moon Joins God of War While Leo’s Heart Winks Out

This stunning view of Saturn and its majestic rings are captured by NASA's Cassini spacecraft. This week sky-watchers get to see the ringed giant pair up with our own moon in Earthly skies. Credit: JPL/NASA
This stunning view of Saturn and its majestic rings are captured by NASA’s Cassini spacecraft. This week sky-watchers get to see the ringed giant for themselves as it pairs up with our own moon in Earthly skies. Credit: JPL/NASA

Sky-watchers can rejoice at the change of seasons this week, seeing the moon join forces with Mars and Saturn, just as one of the sky’s most brilliant stars is eclipsed.

Moon joins Spica. Late at night on Monday, March 17, look for the waning gibbous moon to rise in the eastern sky with two bright celestial companions. The brighter starlike object to its left is, in fact, the planet Mars, and the fainter object next to it is the bright star, Spica.

This sky chart shows the moon sandwiched between Mars and Spica on the night of March 18, 2014. Credit: SkySafari
This sky chart shows the moon sandwiched between Mars and Spica as they will appear on the night of March 18, 2014. Credit: SkySafari

By Tuesday night, the moon will have slid lower between the cosmic duo, creating a stunning conjunction. Luna will be especially close to the 263 light-year-distant Spica, which is the lead star in the constellation Virgo.

The pair will appear separated by less than 2 degrees, equal to only four lunar disks set side by side in the sky.

Asteroid eclipse. Very early on Thursday, March 20, lucky sky-watchers along a narrow strip of land across North America will see an extremely rare event as an asteroid passes in front of the bright star Regulus, visible to the naked eye.

At 2:07 a.m. EDT, the faint asteroid 163 Erigone will whiz in front of the brightest star in the springtime constellation, Leo, the Lion, making it disappear from view for up to 12 seconds.

The special stellar occultation will be visible to millions of people along a 45-mile-wide corridor that runs southeast to northwest from New York City to Oswego, New York, and continue northwest into Ontario, Canada.

Equal day and night. The spring equinox arrives at 4:44 p.m. ET on Thursday, March 20. The event officially marks the time of year that we kick off the spring season in the Northern Hemisphere and the start of autumn in the southern one. The word “equinox” comes from Latin meaning “equal night” and refers to its 12-hour-long day and night, which occurs twice a year.

Compared with the midday position of the sun during the winter season, Northern Hemisphere sky-watchers will notice that the sun has been slowly rising higher in the southern horizon and creating shorter shadows.

It’s only on the spring and autumnal equinoxes that the sun rises due east and sets due west.

Astronomically speaking, the spring equinox marks one of the four major turning points in the cycle of seasons. The Earth spins on its axis, which is tilted at 23.5 degrees with respect to its orbital plane. On these days, however, the Earth’s axis is tilted neither away nor toward the sun, but has both Northern and Southern Hemispheres experiencing equal amounts of sunshine.

Moon and Saturn. After midnight on Friday, March 21, the silvery moon and the ringed planet, Saturn, will be rising together in the east. The pair will appear to have a very close encounter, less than 2 degrees apart. Of course, their proximity will be an illusion. While the moon is only 236,120 miles (380,000 kilometers) from Earth, Saturn is a whopping 857.5 million miles (1.38 billion kilometers) away.

The Lord of the Rings is so far away from us that the sunlight beams reflecting off its cloud-tops takes some 77 minutes to travel through interplanetary space to reach our eyes.

Neptune encounter. Sky-watchers in the Southern Hemisphere can get a telescope-observing challenge by hunting down the ice-giant planet, Neptune, in the morning twilight on Saturday, March 22.

Nearby Mercury, a faint object (but easily visible through binoculars), will help locate Neptune, which is about 1 degree north of the inner planet. Observers should use a low telescope magnification when scanning the sky above Mercury to locate the faint, blue point of light that is the distant ice giant.

Follow Andrew Fazekas, the Night Sky Guy, on Twitter,  Facebook, and his website.

Join me, along with National Geographic Explorers, an astronaut, and questions from you, for our National Geographic Google+ Hangout to Explore the Wonders of the Universe. Post your questions to social media using #LetsExplore, and join us Thursday, March 20 at 2:30pm ET (6:30pm UTC).

 

Comments

  1. Melissa R. Wells
    United StatesI
    March 21, 6:10 pm

    I can’t wait to watch the sky tonight! Is it also the First Red Moon tonight? My family and I love to watch #LIVEFROMSPACE and #NATGEO U are all great and we thank U for all your input and sharing what U know! It means a lot to us. We don’t have a telescope yet, so thank U for sharing your view! See U tonight!

  2. Bill
    March 20, 5:54 am

    ya, NatGeog seems Baffled by the Seas and Oceans? I see these Seasoned Oceanographers, Baffled by Baffin Island because Baffin Island begins where the Labrador Sea becomes the Arctic Ocean – the Nord Atlantic is far away.

  3. Doug
    Niagara
    March 19, 12:50 am

    I see something very bright in the western sky. Bright, white. What is it, please? Located in the Niagara Region, Ontario. Thank you.

  4. Tina
    March 18, 3:30 pm

    I hope I’m awake for it. I’m definitely ready to invest in a telescope.

  5. sylvia silva
    Brasil
    March 18, 3:22 pm

    Fantástico!!!… Lamento por não ser visível no BRASIL.

  6. Pauline Rumor
    New York, N.Y. USA
    March 18, 1:35 pm

    Happy Spring to all ! I’m going to inquire if Columbia University has their observatory open for the viewing of these jewels in the sky !

  7. jones
    Cameroon
    March 18, 7:47 am

    Interesting , how i wish i were in the USA to be witness to the wonders of the universe. Why can’t such studies be extended to Africa so that one can watch the sky to see for himself?

  8. Ronny Westgård
    Denmark
    March 18, 4:37 am

    Looking forward to tonight, so we can see the Wonderland of the sky.

  9. Arup Ghosh
    kolkatta, INDIA
    March 18, 2:06 am

    It has known that the position of moon,mars,and saturn at a perfect time but it is more interesting to know that planet of mars or saturn or other have any possibility of life or water if have how to possible?

  10. Angel Melendez
    Peru
    March 18, 12:36 am

    Hola National Geographic bueno lo mio es una sugerencia con respecto a su facebook lo que yo les diria que deverian crearce una pagina de facebook pero exclusivamente para latinoamerica ya que aqui hay personas que se interezan mucho por las actualidades cintificas y sobre todo por la astronomia. Mi nombre es ANGEL MELENDEZ PEREZ y soy de PERU y soy un amante de la astronomia. Gracias por su comprencion…