1. Diameter: Approximately 12,104 km (7,521 miles)
2. Mass: About 4.87 × 10^24 kg (0.815 Earths)
3. Surface Gravity: 8.87 m/s² (0.904 g)
4. Orbital Period: 225 Earth days
5. Rotational Period: 243 Earth days (retrograde rotation, meaning it spins in the opposite direction to most planets)
6. Atmosphere: Thick, primarily composed of carbon dioxide (96.5%) and nitrogen (3.5%)
7. Average Surface Temperature: 464 degrees Celsius (867 degrees Fahrenheit)
8. Surface Pressure: 92 times that of Earth's (about 9.3 MPa or 1,350 psi)
9. Moons: None
10. Tilt of Axis: 177.36 degrees (almost upside down, leading to retrograde rotation)
11. Orbital Speed: 35.02 km/s (126,072 km/h or 78,337 mph)
12. Surface Features: Includes vast plains, highland regions, large volcanic structures, and impact craters
13. Magnetic Field: Lacks a significant magnetic field
14. Solar Day (Venusian Day): 116.75 Earth days (due to slow rotation and retrograde motion)
15. Atmospheric Density: Much denser than Earth’s atmosphere
16. Surface Composition: Basaltic volcanic rock
17. Geological Activity: Evidence of past and possibly current volcanic activity
18. Cloud Composition: Sulfuric acid clouds creating a reflective atmosphere
19. Exploration: Numerous missions including flybys, orbiters, and landers (e.g., Venera series, Magellan orbiter)
20. Distance from Sun: Average of about 108.2 million km (67.2 million miles)
21. Albedo (Reflectivity): High albedo of 0.65, reflecting most of the sunlight
22. Escape Velocity: 10.36 km/s (23,174 mph)
23. Weather: High-speed winds in the upper atmosphere, slow-moving winds near the surface
24. Greenhouse Effect: Strong greenhouse effect causing extremely high surface temperatures
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