How you may see Jupiter and its moons tonight

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The Seattle Times 19 August, 2021 - 09:11am 119 views

When is Jupiter visible?

The planet will be visible from sunset to sunrise and it reaches its highest point around midnight, according to NASA. Jupiter will be especially easy to spot tonight with the naked eye since it will appear near the bright moon, according to EarthSky. FOX 2 DetroitJupiter Opposition 2021: When, how to see Jupiter at its biggest, brightest

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Kendrick Lamar shocked his diehard fans on Friday (August 20) when he announced his follow-up to 2017’s DAMN. would be his last album for Top Dawg Entertainment, the label he’s been with since his career was in its infancy. But it sounds like there’s no hard feelings coming from the TDE camp.

Shortly after K. Dot made his big reveal, Anthony “Top Dawg” Tiffith addressed the split on Instagram with a lengthy post.

“The whole goal when we started this thing was to make music, make money, and make history,” he wrote. “We did those things 10 times over and then some. TDE and its artists have provided a way to end generational curses that we were all personally born into over the last 17 years in this business. With this being Dot’s last album on TDE, this is more of a VICTORY LAP, a celebration. I know he will be successful in whatever it is he decides to do and will have our FULL support.”

He added, “As for Top Dawg Entertainment, we will continue to grow, develop and give artists the platform to expand into whatever way they choose. Heart, Honor, Respect.”

Tiffith added in the caption, “It’s been an honor and a privilege for TDE to bless the world with the GOAT!”

Kendrick Lamar made the announcement with a rare Instagram post that contained a link to a website. Once fans went to the website, they were met with a message from the Pulitzer Prize-winning MC that read, “I spend most of my days with fleeting thoughts. Writing. Listening. And collecting old Beach cruisers. The morning rides keep me on a hill of silence. I go months without a phone.

“Love, loss, and grief have disturbed my comfort zone, but the glimmers of God speak through my music and family. While the world around me evolves, I reflect on what matters the most. The life in which my words will land next.”

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He continued, “As I produce my final TDE album, I feel joy to have been a part of such a cultural imprint after 17 years. The Struggles. The Success. And most importantly, the Brotherhood. May the Most High continue to use Top Dawg as a vessel for candid creators. As I continue to pursue my life’s calling. There’s beauty in completion. And always faith in the unknown. Thank you for keeping me in your thoughts. I’ve prayed for you all. See you soon enough.”

Lamar has dropped four albums with the label, beginning with 2011’s Section .80 and culminating with DAMN. He’s earned 13 Grammy Awards along the way as well as the aforementioned Pulitzer Prize.

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Read full article at The Seattle Times

Diamonds at the core? - Skywatching

Dublin Live 20 August, 2021 - 06:20pm

These evenings it is hard to miss that bright, starlike object in the southern sky, shining steadily like a lamp. The lack of twinkling tells us that it is not a star; it is a planet: Jupiter, the fifth planet out from the sun.

If you have any sort of telescope or binoculars, get them out to have a look. Binoculars will show a tan-coloured disc with maybe traces of cloud belts. There will be up to four starlike objects forming a line passing through the planet. These are the planet's four largest moons: Io, the closest, and then, going outwards, Europa, Ganymede and Callisto. A telescope, with its higher magnification, will show the disc of the planet, crossed with grey and brown cloud belts.

Jupiter is huge, with a diameter of about 143,000 km. It is big enough to contain over 1,300 Earths. If that planet were a rock ball like the Earth, we would expect its mass to be something like 1,300 times that of the Earth. However, the giant planet is only 320 times more massive than the Earth. This means it must be mostly atmosphere. Saturn, Uranus and Neptune are similar. We call such planets gas giants. When on a long-distance flight, we are above most of the Earth's atmosphere. Jupiter's atmosphere is tens of thousands of kilometres deep. It is made up of a mixture of hydrogen, helium, methane and ammonia, together with a witches brew of organic compounds. These give the planet that tan colour.

Earth's atmosphere started off as more or less the same gaseous mixture as Jupiter's. Under the right conditions the chemicals in this mixture can be persuaded to react, forming aminoacids, an important ingredient for life as we know it. Living creatures here have consumed those chemicals and given us the oxygen atmosphere we have today. The fact we can see these chemicals still there in Jupiter's atmosphere suggests there are no living things there to consume it. However, scientists have fantasized about great blimp creatures floating around in its deep atmosphere. They would have to live in the upper few thousand kilometres because deeper in the atmosphere conditions become more and more extreme.

A few thousand kilometres down into Jupiter's atmosphere the pressure reaches 100-200 million bars, where one bar is the pressure at the Earth's surface. This is where the word "barometer" comes from. As we go downwards, the temperature increases too, so that we eventually reach a point where chemical based life just cannot exist. As we get deeper in towards the centre of the planet, the pressure reaches billions of atmospheres. Under these pressures, gases no longer behave like gases; they are more like liquids or squidgy solids. There might not be a rocky core at all. However, some theories indicate Jupiter might have a very expensive core, a diamond one.

Diamonds are made of carbon. Under extreme temperatures and pressures, carbon atoms do not form the black, sooty stuff we are familiar with; they form diamonds. On Earth, these conditions occur deep underground. They also occur in Jupiter's atmosphere. As we get deeper in that planet's atmosphere, the temperature rises, and under conditions of extreme heat and pressure, methane, which consists of one carbon atom attached to four hydrogen atoms, breaks up. The freed-up carbon atoms diffuse slowly downward, joining together into diamonds, which rain down to the centre of the planet. This might be going on in the cores of the other gas giant planets too. So Jupiter, Saturn, Uranus and Neptune might hold unimaginable riches, but it is extremely unlikely we will ever manage to get our hands on them.

Ken Tapping is an astronomer born in the U.K. He has been with the National Research Council since 1975 and moved to the Okanagan in 1990.  

He plays guitar with a couple of local jazz bands and has written weekly astronomy articles since 1992. 

Tapping has a doctorate from the University of Utrecht in The Netherlands.

Tonight is the best time to observe Jupiter in Kilkenny skies

Kilkenny People 19 August, 2021 - 10:16am

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Tonight, at approximately midnight, the gas giant will reach its closest point to Earth and will be the brightest celestial object in the night sky, apart from the moon.

Weather-wise our skies are set to be partly cloudy overnight and local skygazers will be crossing their fingers that this doesn't cause too much interference.

Astonomy Ireland editor Dave Moore notes that there's another celestial event due on Saturday night that'll be especially worth a watch.

"The big naked eyesight is on Saturday night when the moon is closet to Jupiter and that’ll be a fantastic sight and the highlight of the month," he said.

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Jupiter to be in 'opposition' tonight - what that means and how you can see it

Oxford Mail 19 August, 2021 - 06:42am

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Stargazers and astronomy buffs will want todust of their binoculars and telescopes, as Jupiter is set to put on a dazzling show in the night sky.

The mighty gas giant planet will appear to the naked eye as “a bright star, though it won’t twinkle like the stars”, because it will be at “opposition”.

But what exactly does that mean? And what’s the best way to catch a glimpse of Jupiter this week?

Here is everything you need to know about it.

Opposition - when applied to celestial bodies like planets, means that as Earth passes between the Sun and Jupiter, the planet will appear opposite the Sun.

Bryony Lanigan, an astronomer at the Royal Observatory Greenwich, said: “When a planet is at opposition, it is on the opposite side of the Earth to the Sun – if you were looking down on the Solar System from above and drew a line from Jupiter to the Sun, when Jupiter is at opposition it would pass through the Earth.

“This doesn’t necessarily mean that the planet is at its closest point to the Earth – because of the elliptical nature of planetary orbits, this may occur a day or two either side.”

Lanigan added that planets are usually in opposition for a very short length of time but, during that time, they are visible to the naked eye.

Jupiter will be at its brightest on the evening of Thursday 19 August, and the planet’s opposition takes place just days before the full moon on 22 August.

Lanigan added: “While the sky will not be fully dark, the Moon will not be intruding too much on astrophotographers’ views.”

Jupiter should be visible low above the south-eastern horizon from sunset on the days around opposition on 19 August, but if you wait until a few hours after sunset then it will have risen higher – around 20-25 degrees altitude – and will be easier to spot.

Those looking for Jupiter in the night sky may catch a glimpse of Saturn as well.

Ed Bloomer, also a Royal Observatory Greenwich astronomer, said: “Both planets are fairly low on the horizon, so try and find an observation spot free from tall buildings or trees when looking in that direction.

“And another bonus is that the waxing moon is – relative to the planets – sweeping eastwards over those few days.

“There’s a chance you could get a good photograph featuring stars, planets and the Moon.”

Those looking through telescopes may catch a glimpse of Jupiter’s moons as well as Saturn’s rings.

Bloomer added: “The Galilean moons (Jupiter’s four largest moons – Io, Europa, Ganymede, and Callisto) will look like pinpricks of light in orbit around Jupiter.

“Around Saturn you may be able to make out the rings, and even major divisions within the rings. If your telescope is really good, perhaps you’ll even make out the swirling clouds of Jupiter’s upper atmosphere.”

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Jupiter is at its biggest and brightest this week

Space.com 19 August, 2021 - 06:13am

The solar system's largest planet reaches opposition today (Aug. 19).

Spotting Jupiter is a breeze this week for the naked eye as it reaches its biggest and brightest moment in the night sky. Telescope-hunters will also get a treat looking for moons and atmospheric bands.

The gas giant planet will be at opposition today (Aug. 19), meaning it is directly opposite the sun in Earth's sky. Jupiter also makes its closest approach of the year to Earth during opposition. The planet will appear at magnitude -2.9, well within naked-eye range and outshining any star in Earth's sky except, of course, for the sun.

"August is perhaps the best time this year to enjoy viewing Jupiter and Saturn, as both planets reach opposition this month," NASA noted. The two planets are also near each other in the sky, and we have directions below on where to find them.

Jupiter will be especially easy to spot this year at opposition because it is near the full moon, according to EarthSky. If you look to the southeast, Jupiter lies directly above the moon on Saturday (Aug. 21.) Incidentally, August's full moon is called a "Blue Moon" due to an obscure scheduling rule that has nothing to do with color.

To spot Jupiter, look to the left of the full moon (or right, if you're using a telescope that inverts your image). You should see two bright dots a few degrees apart, along the ecliptic or the path of the planets and moons in our sky. Saturn will be just to the left of the moon, while Jupiter will be even further to the left.

All week you can also use the full moon to spot not only Jupiter and Saturn, but also Pluto and Neptune. Pluto will be very faint (only visible in a moderate-sized telescope), but directly above the moon on Aug. 19. Neptune will also be faint and extremely low in the southeast sky, but if you know where to look, Neptune will be to the left of the moon on Aug. 22 and you may just glimpse it in a telescope.

Jupiter will remain highly visible in the constellation Capricornus in the coming weeks, even after the moon passes through the region. To find the arrowhead-shaped constellation, look for the Summer Triangle asterism and make a line from Vega through Altair to the lower southern sky.

If you happen to have a telescope, Sky & Telescope recommended looking for the four largest Jovian or "Galilean" moons — Callisto, Europa, Io and Ganymede — on the evening of Aug. 24 to 25, when the moons are arrayed on either side of Jupiter. But anytime this month is great to spot moons (including their shadows on Jupiter) or to look at the bands of the huge planet, the magazine added.

"Small telescopes will clearly show all the Galilean ducklings and their meanders around mother hen Jupiter," Sky & Telescope explained. "Slightly larger instruments, in the 4- to 6-inch range, will reveal the shadows the moons cast when they transit in front of the planet, as well as their disappearance and reappearance at the limb before and after they're occulted by Jupiter. Ganymede, the largest moon, casts the inkiest, easiest-to-see shadow, while Europa, the smallest, takes more concentration."

Editor's note: If you snap an amazing photo of Jupiter at opposition and would like to it them for a story or photo gallery, send images and comments to spacephotos@space.com!

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Largest planet to take center stage in night sky starting Thursday

UPI News 19 August, 2021 - 04:45am

Stargazers that spent time outside last week to watch the Perseid meteor shower likely saw Jupiter as it was the brightest object in the sky after the moon set during the first part of the night.

This week, Jupiter will appear slightly brighter as it reaches opposition.

Opposition is an astronomical term meaning that Jupiter will appear opposite of the sun from the perspective of the Earth. This is also around the time when the two planets will be at their closest, meaning that it is the best time of the year to observe the planet.

Jupiter will officially reach opposition on Thursday, but its not just a one-night event.

The planet will remain vibrant in the sky throughout the rest of August, so if cloudy conditions prevail Thursday night, onlookers can step outside over the weekend or any time in the next few weeks for a great view of Jupiter.

Jupiter will be easy to spot throughout the entire night with it rising in the southeast shortly after sunset, slowly tracking across the southern sky as the night transpires and eventually setting in the southwest by sunrise.

Saturn will also be in the neighborhood, although it will not appear quite as bright as Jupiter.

To find Saturn, it is helpful to first, locate Jupiter in the sky and then look off to the right about the distance of a hand stretched out at arm's length.

Although no telescope is required to see the largest planet in the solar system, the Jupiter opposition is a great opportunity for people to dig their telescope out of the closet or to use a new telescope for the very first time.

Since it is already visible to the unaided eye, Jupiter is easy to find with a telescope. Plus, most telescopes are powerful enough to reveal its four largest moons: Europa, Io, Ganymede and Callisto.

These four moons are often called the Galilean moons as they were first observed by Galileo in the early 1600s.

These moons orbit Jupiter much faster than the moon that orbits the Earth. Observers can see the moons change position over the span of just a few hours as they zip about the large planet.

Bigger telescopes with more magnifying power can reveal greater details about Jupiter, including its colorful bands of clouds and even the famous Great Red Spot.

The planet will not appear this bright again for another 13 months when it reaches opposition again on Sept. 26, 2022

However, stargazers will continue to see Jupiter featured in the evening sky, alongside of Saturn, throughout the balance of 2021 with the planets gradually becoming dimmer as the end of the year draws near.

Our largest planet will be a big spotlight in the night sky this week

TweakTown 19 August, 2021 - 03:33am

The largest planet in our solar system is Jupiter, and this week you will be able to see the planet reach opposition in its orbit. The term "opposition" means that Jupiter is opposite the sun from the perspective of Earth, and officially the planet will reach opposition on August 19. However, this space event isn't just for one night, as Jupiter will be clearly visible in the night sky for the remainder of August.

It's recommended that if you have an old telescope to laying around to take this opportunity to check out the largest planet in our solar system. As AccuWeather reports, most telescopes are powerful enough to be able to show Jupiters four largest moons; Europa, Io, Ganymede, and Callisto. If you are interested in reading more about space news, NASA's Hubble Space Telescope recently captured an image of a space "furnace", check that out here.

Jak joined the TweakTown team in 2017 and has since reviewed 100s of new tech products and kept us informed daily on the latest news. Jak's love for technology, and, more specifically, PC gaming, began at 10 years old. It was the day his dad showed him how to play Age of Empires on an old Compaq PC. Ever since that day, Jak fell in love with games and the progression of the technology industry in all its forms. Instead of typical FPS, Jak holds a very special spot in his heart for RTS games.

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