PHOTOVALET (tm)
Enter search term

Science-Universe: Planets; Tick type of Volcano on Venus


Scientists nicknamed this type of volcano a tick. About 66 km (41 mi) across at the base, this volcano has a flat, concave summit 35 km (22 mi) in diameter. The sides of the volcano are characterized by radiating ridges and valleys. To the west, the rim of the volcano appears to have been breached by dark lava flows that emanated from a shallow summit pit (5.4 km/3.3 mi in diameter) and traveled west along a channel. The black square represents missing data.


Back to Venus
The Planet Venus

Mass (kg)..................................................................4.87 x 10^24
Diameter (km).........................................................12104
Mean density (kg/m^3).............................................5250
Escape velocity (m/sec)............................................10400

Average distance from Sun (AU)..............................0.723
Rotation period (length of day in Earth days).............243.0 (retrograde)
Revolution period (length of year in Earth days)........224.7

Obliquity (tilt of axis degrees)..................................178
Orbit inclination (degrees)........................................3.39
Orbit eccentricity (deviation from circular)............0.007

Mean surface temperature (K)...................................726

Visual geometric albedo (reflectivity).........................0.59
Highest point on surface............................................Maxwell Montes (17 km above mean planetary radius)
Atmospheric components...........................................96% carbon dioxide, 3% nitrogen, 0.003% water vapor
Surface materials........................................................basaltic rock and altered materials

03% water vapor
Surface materials........................................................basaltic rock and altered materials