Average temp on venus
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Average Temperature on Venus
Surface Temperature on Venus
The surface temperature of Venus is extremely high, making it one of the hottest planets in our solar system. Multiple studies have reported that the average surface temperature is approximately 750 K (476.85°C) . This intense heat is primarily due to the thick atmosphere composed mainly of carbon dioxide, which creates a strong greenhouse effect. The surface pressure on Venus is also about 90 times that of Earth's, further contributing to the extreme temperatures .
Temperature Variations with Altitude
Mesosphere and Thermosphere
In the upper mesosphere and lower thermosphere of Venus, temperatures are significantly lower than at the surface. Observations have shown that temperatures at around 110 km altitude range from approximately 200 K to 240 K (−73.15°C to −33.15°C) . These temperatures exhibit considerable variability due to atmospheric dynamics, diurnal changes, and solar activity.
Night Side Mesosphere
The night side of Venus, particularly at about 95 km altitude, has even cooler temperatures. Measurements indicate that temperatures vary from 145.5 K to about 198.1 K (−127.65°C to −75.05°C), with an average value of 176.3 K (−96.85°C). These values are consistent with previous observations and show a minimum temperature at equatorial latitudes, increasing towards mid-latitudes.
Exospheric Temperature
The exosphere of Venus, which is the outermost layer of the atmosphere, also has relatively low temperatures. A global average temperature of 228 K (−45.15°C) has been derived from measurements, with variations depending on latitude and local time. The exospheric temperature changes by only about 10% of the variations seen in the terrestrial thermosphere in response to solar flux changes.
Conclusion
In summary, Venus exhibits extreme temperatures at its surface, averaging around 750 K due to a potent greenhouse effect. However, temperatures decrease significantly with altitude, with the upper mesosphere and lower thermosphere showing values between 200 K and 240 K, and the night side mesosphere averaging around 176.3 K. The exosphere maintains a global average temperature of 228 K. These variations highlight the complex and dynamic nature of Venus's atmosphere.
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