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 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 July 2018

On July 27, Mars reaches its long-awaited opposition—and is visible all night. Look for its south polar cap and dark features that shift as the planet rotates. This month, you will also spot constellations Scorpius and Sagittarius, globular cluster M4, and the annual Delta Aquarid meteor shower.

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: Dec. 21, December Solstice

December Solstice

The December solstice occurs at 16:28 UTC. The South Pole of the earth will be tilted toward the Sun, which will have reached its southernmost position in the sky and will be directly over the Tropic of Capricorn at 23.44 degrees south latitude. This is the first day of winter (winter solstice) in the Northern Hemisphere and the first day of summer (summer solstice) in the Southern Hemisphere.

The Sky Tonight Update: Dec. 18, New Moon

new moon, sky tonight

This December 18, the Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 06:30 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.

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The Sky Tonight Update: Dec. 3, Full Moon, Supermoon

Full Moon, Supermoon

This December 3, 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 phase occurs at 15:47 UTC. 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. This moon has also been known as the Full Long Nights Moon and the Moon Before Yule. This is also the only supermoon for 2017. The Moon will be at its closest approach to the Earth and may look slightly larger and brighter than usual.

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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. 18, New Moon

new moon, sky tonight

This November 18, the Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 11:42 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.

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The Sky Tonight Update: Nov. 17-18, Leonids Meteor Shower

Leonids Meteor Shower

The Leonids is an average shower, producing up to 15 meteors per hour at its peak. This shower is unique in that it has a cyclonic peak about every 33 years where hundreds of meteors per hour can be seen. The last of these occurred in 2001. The Leonids is produced by dust grains left behind by comet Tempel-Tuttle, which was discovered in 1865. The shower runs annually from November 6-30. It peaks this year on the night of the 17th and morning of the 18th. The nearly new moon will not be a problem this year. Skies should be dark enough for what should be good show. Best viewing will be from a dark location after midnight. Meteors will radiate from the constellation Leo, but can appear anywhere in the sky.

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