Adrastea
Alternative name: Also known as: S/1979 J 1
Radius of Adrastea
The radius of Adrastea is one of its most fundamental physical characteristics. The Adrastea radius measures approximately 8 km, making it 796.38× smaller than Earth. This measurement represents the average distance from the center of Adrastea to its surface, providing crucial information about the celestial body's size and volume.
Understanding the Adrastea radius is essential for calculating other important properties such as surface area, volume, and gravitational characteristics. The radius directly influences how we perceive and study this fascinating object in our Solar System.
Orbital Radius of Adrastea
The Adrastea semi-major axis is a critical orbital parameter that defines the average distance from the Sun. The Adrastea semi-major axis measures 0.00 AU (approximately 129,000 km), which represents the average orbital radius of Adrastea. This measurement is fundamental to understanding Adrastea's position in the Solar System and its relationship with other celestial bodies.
The orbital radius of Adrastea determines how much solar radiation the planet receives, which directly influences its temperature, climate, and overall environmental conditions. This distance places Adrastea in a specific region of the Solar System, each with unique characteristics and scientific significance.
When we examine the Adrastea semi-major axis 0.00 AU, we gain insights into the planet's orbital mechanics, including its orbital period, velocity, and the gravitational forces at play. This parameter is essential for space mission planning and understanding the dynamics of our Solar System.
Mass of Adrastea in kg
The Adrastea mass is a fundamental property that determines many of the planet's physical characteristics. The mass of Adrastea in kg is approximately 2.00e+15 kg, which is 2986000000.00× less than Earth's mass. This substantial mass creates a significant gravitational field that influences everything from atmospheric retention to orbital dynamics.
Understanding the Adrastea mass allows scientists to calculate other critical properties such as surface gravity, escape velocity, and the planet's ability to retain an atmosphere. The mass also plays a crucial role in determining how Adrastea interacts with other celestial bodies through gravitational forces.
The precise measurement of the mass of Adrastea in kg is essential for space exploration missions, as it affects spacecraft trajectories, landing procedures, and the design of scientific instruments. This fundamental property helps us understandAdrastea's formation history and its place in the evolution of our Solar System.
How Long is a Year on Adrastea?
The Adrastea orbital period defines the length of one complete revolution around the Sun. The Adrastea orbital period is 0.00 hours, which is 105807515.26× shorter than Earth's year. This orbital period determines the length of Adrastea's year and directly influences seasonal patterns, climate cycles, and temperature variations.
The Adrastea orbital period is directly related to its distance from the Sun, following Kepler's laws of planetary motion. Planets farther from the Sun have longer orbital periods, while those closer complete their orbits more quickly. This relationship helps explain why Adrastea takes the time it does to complete one full orbit.
Understanding the Adrastea orbital period is crucial for space mission planning, as it affects launch windows, travel times, and the timing of scientific observations. This fundamental orbital parameter also provides insights into the planet's formation history and its current position in the Solar System's dynamic structure.
Distance Between Adrastea and Earth
How far is Adrastea from Earth? This is a question that fascinates both astronomers and space enthusiasts. The distance between Adrastea and Earth varies throughout their orbital cycles, but on average, Adrastea is approximately 1.49e+8 km(0.999 AU) away from Earth. This distance changes as both planets orbit the Sun, with the closest approach (opposition) and farthest separation (conjunction) creating significant variations.
The question "How far is Adrastea from Earth?" has practical implications for space exploration. This distance determines travel time for spacecraft, communication delays for mission control, and the amount of fuel required for interplanetary missions. Understanding this distance is essential for planning future missions to Adrastea.
The distance between Adrastea and Earth is not constant due to the elliptical nature of both planets' orbits. When Adrastea and Earth are on the same side of the Sun (opposition), they are at their closest, making this the optimal time for observations and potential missions. Conversely, when they are on opposite sides of the Sun (conjunction), they are at their farthest separation, which can exceed the average distance significantly.
- Mean Radius
- 8km
- Equatorial Radius
- 8.2km
- Polar Radius
- 0km
- Mass
- 2.00e+15 kg
- Volume
- 2.31e+4 km³
- Density
- 3g/cm³
- Gravity
- 0.002m/s²
- Escape Velocity
- 0m/s
- Flattening
- 0
- Average Temperature
- 0.0 K (-273.1 °C)
- Axial Tilt
- 0°
- Semimajor Axis
- 129,000km
- Perihelion
- 0km
- Aphelion
- 0km
- Eccentricity
- 0.002
- Inclination
- 0.054°
- Sidereal Orbit
- 0.00 hours
- Sidereal Rotation
- 0.00 hours
- Mean Anomaly
- 0°
- Argument of Periapsis
- 0°
- Longitude of Ascending Node
- 0°
Overview of Adrastea
Physical Characteristics
Orbital Properties
Rotation and Tilt
Temperature and Atmosphere
Escape Velocity & Flattening
FAQs About Adrastea
What is the gravity on Adrastea?
How big is Adrastea compared to Earth?
How far is Adrastea from the Sun?
How long is a year on Adrastea?
What is Adrastea made of?
Does Adrastea have seasons?
- Discovered By
- David C. Jewitt, G. E. Danielson
- Discovery Date
- 08/07/1979
