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The rotation rate of Venus was first measured during the 1961 conjunction, observed by radar from a 26 m antenna at Goldstone, California, the Jodrell Bank Radio Observatory in the UK, and the Soviet deep space facility in Yevpatoria, Crimea. Accuracy was refined at each subsequent conjunction, primarily from measurements made from Goldstone ...
Infrared image of the night-side of Venus, showing different layers of clouds at altitudes of 35 to 50 km in different colours. Red coloured clouds are the highest, green and blue are below. Carbon dioxide and monoxide areas are absorbing infrared signatures. Venusian clouds are thick and are composed mainly (75–96%) of sulfuric acid droplets ...
Oldest known recording of Venus positions, of the Babylonian Venus tablet of Ammisaduqa (1600 BC). In the Old Babylonian period, the planet Venus was known as Ninsi'anna, and later as Dilbat. [199] The name "Ninsi'anna" translates to "divine lady, illumination of heaven", which refers to Venus as the brightest visible "star".
Throughout December, Venus will move higher and higher in the night sky, setting several hours after the sun. Because of how bright Venus will appear, some are referring to it as this year's ...
This month’s stargazing agenda brims with planet sightings. We have planet pairings, moon-planet hangouts, and a special treat to end the month: several evenings with all seven of our space ...
For example, Venus has an effective temperature of approximately 226 K (−47 °C; −53 °F), but a surface temperature of 740 K (467 °C; 872 °F). [ 13 ] [ 14 ] Similarly, Earth has an effective temperature of 255 K (−18 °C; −1 °F), [ 14 ] but a surface temperature of about 288 K (15 °C; 59 °F) [ 15 ] due to the greenhouse effect in ...
The EnVision Venus explorer will study that planet in unprecedented detail, from inner core to the top of its atmosphere, to help astronomers understand why the hot, toxic world didn’t turn out ...
At this height, the temperature is a manageable 75 °C (348 K; 167 °F). At 5 km (3.1 mi) higher, it is a temperate 27 °C (300 K; 81 °F) (see Atmosphere of Venus § Troposphere). The atmosphere also provides the various elements required for human life and agriculture: carbon, hydrogen, oxygen, nitrogen, and sulfur. [5]