Research Astronomers Reveal Length of Day on the Planet Venus

Hitekno.com – In a research Natura Astronomy, finally revealed long one day at Planet Venus equivalent to 243.0226 days in Earth. This time equals roughly two-thirds of an Earth year and it changes with variations of about 20 minutes.

Although Venus is Earth’s neighbor, the planet’s very thick atmosphere makes research difficult.

Starting from 2006, experts used a 70-meter-wide Goldstone antenna in California’s Mojave Desert to send radio waves to Venus.

These waves can travel through the atmosphere and are then reflected off the surface.

A few minutes later, the wave was captured again at the Goldstone observatory and about 20 seconds later at the Green Bank observatory.

The exact difference between the two detections tells experts how fast the planet is spinning.

The experiment resulted in 21 observations over 15 years just to find out exactly how long a day was on Venus.

This difference in variation is due to the motion of Venus’s dense atmosphere.

At the surface level, the pressure is about 93 times higher than that of Earth so that its bursts affect Venus’ rotation.

These observations also reveal more information about Venus. The team of scientists can estimate that the planet’s core measures about 3,500 km.

It is similar in size to Earth’s. However, due to limited knowledge, the team still does not know whether it is liquid, solid, or mixed.

Reporting from IFL Science, Monday (3/5/2021), this research also provides the tilt of the axis with respect to the orbital plane of Venus.

The team found the tip of Venus on one side was exactly 2.64 degrees. Seeing its very small tilt, the planet has no seasons.

Earth has a tilt of 23 degrees and is very different from Venus. However, Venus is unique among the planets as it rotates in opposite directions creating some strange effects.

According to experts, the timekeeping on Venus is very strange. The planet’s rotation takes 243 days, but the year (revolutions around the Sun) is only 225 days.

Due to the planet’s rotation in the opposite direction, if one day were counted from dawn to dawn, it would take 117 days.

No wonder the Planet Venus hides so many mysteries that scientists don’t know yet. (Suara.com/Lintang Siltya Utami)

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