Convergence of Venus and Jupiter

June 30 Venus and Jupiter will appear as one big double star in the western sky once the Sun goes down

On June 30 Venus and Jupiter will appear as one big double star in the night sky.
On June 30 Venus and Jupiter will appear as one big double star in the night sky.

Space news (June 26, 2015) –

Amateur and professional astronomers are watching as Venus and Jupiter draw steadily closer and will appear to converge on June 30. The two brightest planets in the night sky, Venus and Jupiter have been moving toward convergence since the beginning of the month, which is the closest they’ll appear until August 2016.

Jupiter and Venus having been steadily moving toward convergence since the beginning of the month.
Jupiter and Venus having been steadily moving toward convergence since the beginning of the month.

Wind the clock back a few thousand years, there would probably be a festival or human sacrifice, in some cultures, about to occur in a few days time. Looking up at Venus and Jupiter as they move closer each night would have been an awe-inspiring and frightening sight, and certainly one an ancient culture would have noticed and worshiped in some way.

Venus and Jupiter are in fact over 800 million miles apart, they only appear closer in the night sky, because of their current positions in their orbits. Venus is currently overtaking or lapping Jupiter as it orbits the Sun, and on June 30 across North America, they’ll appear as one big double star in the night sky.

Viewers can view the convergence with the naked eye although binoculars or a small telescope certainly enhances the show. The best part is the show is viewable anywhere on the planet, check with local astronomers for the best time to view the convergence. 

Just look to the West a few hours after sunset on June 30. People in Australia and the East wait until August 1 to see Venus and Jupiter converge, but this won’t diminish the show.

Your eyes will need a few minutes to adapt to light levels, but once the lights go down, you’ll be amazed by the brightness of the event. A stunning 0.33 of a degree apart at convergence, around 30 times closer than at the beginning of the month, Venus and Jupiter can be hidden behind your finger.

There’s nothing to be afraid of, these events don’t significantly increase gravitational forces, and aren’t harbingers of doom.

No need for the human sacrifice!

For more information on the convergence of Venus and Jupiter on June 30 check here

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Venus

Space & astronomy wiki (June 23, 2015)

Venus and Earth are similar in size, composition, and mass. They differ in that Venus does not have oceans or human life, and its temperature during the day reaches 484 degrees Celsius. The daytime temperature is so hot it could melt lead. The dense atmosphere is composed of carbon dioxide and sulfuric acid which acts as a greenhouse and traps the heat. Venus revolves around the Sun in a circular orbit once every 225 Earth days. Venus rotates slowly on its axis in a clockwise direction, which is referred to as a
Venus and Earth are similar in size, composition, and mass. They differ in that Venus does not have oceans or human life, and its temperature during the day reaches 484 degrees Celsius. The daytime temperature is so hot it could melt lead. The dense atmosphere is composed of carbon dioxide and sulfuric acid which acts as a greenhouse and traps the heat. Venus revolves around the Sun in a circular orbit once every 225 Earth days. Venus rotates slowly on its axis in a clockwise direction, which is referred to as a “retrograde” rotation because it is the opposite of the seven other planets. A rotation takes 243 Earth days, so a Venusian day is longer than a Venusian year. As with the other inner planets, the surface of Venus has been shaped by impact craters, tectonic activity, and volcanoes which scientists believe to be ongoing. The volcanic activity is believed to be the source of the sulfur found in the atmosphere. Venus does not have any naturally occurring satellites.

Space & Astronomy Wiki – the planets in the solar system –

At an average distance of 0.72 AU from Sol, Venus is the second planet from the Sun, closest sister planet to Earth in size and mass, and the third densest planet in the solar system at an average density of 5.24 g/cm3.

The second-brightest object in the night sky, with the Moon being the brightest, at between magnitude -3.8 and -4.6, Venus was first recorded by Babylonian astronomers in the 17th century BC and is named after the Roman Goddess of Love and Beauty.  

Called both the Evening Star and Morningstar, Venus is the second largest terrestrial planet in the solar system and the hottest planet with an average surface temperature of 462 degrees Celsius.

Composed of a crust, molten mantle, and core, the surface of Venus is totally obscured by dense clouds of carbon dioxide that trap heat very effectively, producing a runaway greenhouse effect.   

Rotating very slowly on its axis, Venus rotates in the opposite direction to the other planets in the solar system, creating extremely long days and nights, and a west to east movement of the Sun across the sky.

Looking at the surface of Venus you see mountains, valleys, craters, and even evidence of previous volcanic activity. This is deceiving, though, because the geology of the surface of this planet is very different than that of Earth. 

We’ll talk more about the surface geology, atmosphere and life history of Venus in future articles.

You can learn more about Venus here.

 

Learn about the NExSS Coalition’s Search for Habitable Planets and Life Beyond Earth.

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