All seven planets will be visible in the night sky this week


The solar system will put on a show for sky watchers this week, with all seven planets beyond Earth visible in the night sky at some point over the next seven days.

Venus will be the brightest of the worlds, but Mercury, Mars, Jupiter and Saturn will be visible to the naked eye and Uranus and Neptune visible with binoculars. 

Mars, Saturn and Jupiter will be best viewed in the evenings and, assuming the clouds hold off and the sky is clear, Venus will be unmissable in the morning sky.

Without a telescope or binoculars, all the planets apart from Neptune and Uranus will all appear as stars, or points of light against the dark night or early morning sky.

Neptune will be barely visible with binoculars or a small telescope about 9 hours after sunset, Uranus will ‘just’ be visible with the unaided eye on a very dark night. 

Mercury will be visible just above the horizon just before dawn, and almost directly above it will be the much brighter Venus. To the left of this image is the bright star Arcturus and to the right is Spica, one of the brightest star systems in the sky

Mercury will be visible just above the horizon just before dawn, and almost directly above it will be the much brighter Venus. To the left of this image is the bright star Arcturus and to the right is Spica, one of the brightest star systems in the sky

Venus and Mercury will be best viewed in the morning sky, just before dawn and Venus will be the third brightest celestial body after the Sun and Moon.

To find Mercury you first need to look for Venus – it’s the brightest ‘star’ in the sky –  then look down, close to the horizon. 

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Venus outshines Mercury by 70 times, so it will be considerably fainter than Earth’s sister planet and mainly visible in the northern hemisphere.   

According to EarthSky, Mercury will be best viewed on an unobstructed horizon an hour before sunrise – ideally with binoculars but it should be visible to the naked eye.

As the month goes on Mercury, the closest planet to the Sun, will gradually become brighter by the day and climb higher in the sky, staying out longer before sunset. 

Mars and Jupiter will come out as night begins to fall – with Mars appearing as the brightest ‘star in the eastern half of the sky and Jupiter the brightest in the west.

The crescent Hunter’s Moon, will make it easier to spot the gas giant planets Jupiter and Saturn – with Jupiter easily the brightest of the two. 

It’s named a Hunter’s Moon due to the time of year and its association with Native American tribes using the full moon in October/November to gather food.

It will now begin to get smaller as the month goes on, leading to darker skies, making otherwise hard to spot planets more visible to the naked eye. 

When the sky gets darker into the night, you’ll see Saturn appear – about 5 degrees to the east of Jupiter – or about two fingers width at arms length from the eye.

Both planets will be visible in the southwestern sky just after sunset and will appear relatively close together – although they are millions of miles apart. 

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Saturn will appear as bright as some of the brightest stars, but compared to the giant Jupiter it will pale as Jupiter outshines the ringed planet by 12 times.

Jupiter and Saturn can be seen very close together in the southern sky and the two gas giants will continue to get closer as seen from Earth until Winter solstice in December

Jupiter and Saturn can be seen very close together in the southern sky and the two gas giants will continue to get closer as seen from Earth until Winter solstice in December

Mars, along with Jupiter and Saturn, will be a bright 'evening planet' throughout November, visible after nightfall in the eastern sky

Mars, along with Jupiter and Saturn, will be a bright ‘evening planet’ throughout November, visible after nightfall in the eastern sky

Between now and the winter solstice, Jupiter and Saturn will gradually get closer together, until they line up in conjunction on December 21 – the next time the two giant world’s will appear so close in the Earth sky will be March 2080.

While Saturn is the most distant world easily visible to the naked eye, you will need a telescope to view its rings – something that is more impressive in 2020 as they are tilted towards the Earth. 

Due to the waning Moon, the sky will be darker than usual, and if you can find a dark sky area with a clear night you should be able to spot Uranus and Neptune.

Both will require binoculars, although it may be possible to ‘just’ see Uranus as a faint blue-green ‘star’ with the unaided eye – it will be in the Pisces constellation.  

To give you an example of how faint Uranus – which is 1.7 billion miles away – is in comparison to other planets – Mars will outshine it by about 700 times.

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The showstoppers for November will be the ‘bright planets’ of Mars, Jupiter, Saturn, Venus and Mercury. The first three will be in the evening, the others in the morning. 

CARBON DIOXIDE AND SULPHURIC ACID DROPLETS FEATURE IN THE ATMOSPHERE OF VENUS

Venus’s atmosphere consists mainly of carbon dioxide, with clouds of sulphuric acid droplets. 

The thick atmosphere traps the sun’s heat, resulting in surface temperatures higher than 470°C (880°F).

The atmosphere has many layers with different temperatures. 

At the level where the clouds are, about 30 miles (50 km) up from the surface, it’s about the same temperature as on the surface of the Earth.

As Venus moves forward in its solar orbit while slowly rotating backwards on its axis, the top level of clouds zips around the planet every four Earth days.

They are driven by hurricane-force winds travelling at about 224 miles (360 km) per hour. 

Atmospheric lightning bursts light up these quick-moving clouds. 

Speeds within the clouds decrease with cloud height, and at the surface are estimated to be just a few miles (km) per hour.

On the ground, it would look like a very hazy, overcast day on Earth and the atmosphere is so heavy it would feel like you were one mile (1.6km) deep underwater.



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