The Night Sky for May 2019

In May, we are looking away from the crowded, dusty plane of our own galaxy—toward a region where the sky is brimming with distant galaxies. Locate Virgo to find a concentration of roughly 2,000 galaxies—and search for Coma Berenices to identify many more. Keep watching for space-based views of the galaxies, including the Sombrero Galaxy, M87, and M64.
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The Night Sky for February 2019

In February, the Winter Triangle is your guide to the night sky: The northern hemisphere is treated to views of the stars Procyon, Sirius, and Betelgeuse. Keep watching for the awe-inspiring space-based views of the Orion Nebula, which is sculpted by the stellar winds of central bright stars.

“Tonight’s Sky” is a monthly video of constellations you can observe in the night sky. The series is produced by the Space Telescope Science Institute, home of science operations for the Hubble Space Telescope, in partnership with NASA’s Universe of Learning. This is a recurring show, and you can find more episodes—and other astronomy videos—at https://hubblesite.org/videos/science.

The Night Sky for December 2018

Saturn’s iconic rings are clearly visible with backyard telescopes in early December—Mercury and Venus appear later in the month. Also look for Eta Cassiopeiae, a double star, with binoculars or a small telescope to discern its gold and blue hues. Finally, don’t miss the mid-December Geminid meteor shower. You could see as many as 60 colorful meteors per hour.

Find out more about what you can see from your backyard, front stoop, or local park by viewing this monthly program. “Tonight’s Sky” is produced by HubbleSite.org, online home of the Hubble Space Telescope.

The Night Sky for September 2018

In September, your binoculars will reveal the rusty surface of Mars, iconic rings of Saturn, the waxing Moon—and the comet Giacobini-Zinner, which passes through the constellation of Auriga.

Find out more about what you can see from your backyard, front stoop, or local park by viewing this monthly program. “Tonight’s Sky” is produced by HubbleSite.org, online home of the Hubble Space Telescope.

The Sky Tonight Update: Nov. 24, Mercury at Greatest Eastern Elongation

Mercury at Greatest Eastern Elongation

This November 24, the planet Mercury reaches greatest eastern elongation of 22.0 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the evening sky. Look for the planet low in the western sky just after sunset.

The Sky Tonight Update: Nov. 13, Conjunction of Venus and Jupiter

Conjunction of Venus and Jupiter

This November 13, a spectacular conjunction of Venus and Jupiter will be visible in the evening sky. The two bright planets will be extremely close, appearing only 0.3 degrees apart. Look for this impressive pairing in the Eastern sky just before sunrise.

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The Sky Tonight Update: Nov. 4-5, Taurids Meteor Shower

Taurids Meteor Shower

The Taurids is a long-running minor meteor shower producing only about 5-10 meteors per hour. It is unusual in that it consists of two separate streams. The first is produced by dust grains left behind by Asteroid 2004 TG10. The second stream is produced by debris left behind by Comet 2P Encke. The shower runs annually from September 7 to December 10. It peaks this year on the the night of November 4. Unfortunately the glare from the full moon will block out all but the brightest meteors. If you are extremely patient, you may still be able to catch a few good ones. Best viewing will be just after midnight from a dark location far away from city lights. Meteors will radiate from the constellation Taurus, but can appear anywhere in the sky.

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The Sky Tonight Update: Jan. 19, Mercury at Greatest Western Elongation

Mercury elongation

This January 19th, the planet Mercury reaches its greatest western elongation of 24.1 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the morning sky. Look for the planet low in the eastern sky just before sunrise.

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The Sky Tonight Update: Ursids Meteor Shower, Dec. 21-22 peak

The Ursids is a minor meteor shower producing about 5-10 meteors per hour. It is produced by dust grains left behind by comet Tuttle, which was first discovered in 1790. The shower runs annually from December 17-25. It peaks this year on the night of the 21st and morning of the 22nd.

The second quarter moon will block many of the fainter meteors but if you are patient, you might still be able to catch a few of the brighter ones. Best viewing will be just after midnight from a dark location far away from city lights. The Meteors will appear to radiate from the constellation Ursa Minor, but can appear anywhere in the sky.

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The Sky Tonight Update: Supermoon #3, Dec. 14

December 14th will bring the third and last of what is known as the “supermoon.”  The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated.  This full moon was known by early Native American tribes as the Full Cold Moon because this is the time of year when the cold winter air settles in and the nights become long and dark.

The third supermoon has also been known as the Full Long Nights Moon and the Moon Before Yule. This Moon will be at its closest approach to the Earth and may look slightly larger and brighter than usual.

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