(1221) Amor

Alternative name: Also known as: 1932 EA1

Asteroid
(1221) Amor Radius

Radius of (1221) Amor

The radius of (1221) Amor is one of its most fundamental physical characteristics. The (1221) Amor radius measures approximately 1.5 km, making it 4247.33× smaller than Earth. This measurement represents the average distance from the center of (1221) Amor to its surface, providing crucial information about the celestial body's size and volume.

Understanding the (1221) Amor 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.

(1221) Amor Semi-Major Axis

Orbital Radius of (1221) Amor

The (1221) Amor semi-major axis is a critical orbital parameter that defines the average distance from the Sun. The (1221) Amor semi-major axis measures 1.92 AU (approximately 2.87e+8 km), which represents the average orbital radius of (1221) Amor. This measurement is fundamental to understanding (1221) Amor's position in the Solar System and its relationship with other celestial bodies.

The orbital radius of (1221) Amor determines how much solar radiation the planet receives, which directly influences its temperature, climate, and overall environmental conditions. This distance places (1221) Amor in a specific region of the Solar System, each with unique characteristics and scientific significance.

When we examine the (1221) Amor semi-major axis 1.92 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.

(1221) Amor Mass

Mass of (1221) Amor in kg

The (1221) Amor mass is a fundamental property that determines many of the planet's physical characteristics. The mass of (1221) Amor in kg is approximately 3.50e+12 kg, which is 1706285714285.71× less than Earth's mass. This substantial mass creates a significant gravitational field that influences everything from atmospheric retention to orbital dynamics.

Understanding the (1221) Amor 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 (1221) Amor interacts with other celestial bodies through gravitational forces.

The precise measurement of the mass of (1221) Amor 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 understand(1221) Amor's formation history and its place in the evolution of our Solar System.

(1221) Amor Orbital Period

How Long is a Year on (1221) Amor?

The (1221) Amor orbital period defines the length of one complete revolution around the Sun. The (1221) Amor orbital period is 0.27 hours, which is 32479.43× shorter than Earth's year. This orbital period determines the length of (1221) Amor's year and directly influences seasonal patterns, climate cycles, and temperature variations.

The (1221) Amor 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 (1221) Amor takes the time it does to complete one full orbit.

Understanding the (1221) Amor 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.

How Far is (1221) Amor from Earth?

Distance Between (1221) Amor and Earth

How far is (1221) Amor from Earth? This is a question that fascinates both astronomers and space enthusiasts. The distance between (1221) Amor and Earth varies throughout their orbital cycles, but on average, (1221) Amor is approximately 1.38e+8 km(0.920 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 (1221) Amor 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 (1221) Amor.

The distance between (1221) Amor and Earth is not constant due to the elliptical nature of both planets' orbits. When (1221) Amor 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.

Physical Properties
Mean Radius
0km
Equatorial Radius
1.5km
Polar Radius
0km
Mass
3.50e+12 kg
Volume
0.00e+0 km³
Density
0g/cm³
Gravity
0m/s²
Escape Velocity
0.001m/s
Flattening
0
Average Temperature
0.0 K (-273.1 °C)
Axial Tilt
0°
Semimajor Axis
2.87e+8km
Perihelion
1.62e+8km
Aphelion
4.12e+8km
Eccentricity
0.435
Inclination
11.879°
Sidereal Orbit
0.27 hours
Sidereal Rotation
0 seconds
Mean Anomaly
49.408°
Argument of Periapsis
26.436°
Longitude of Ascending Node
171.418°

Overview of (1221) Amor

(1221) Amor is a fascinating asteroid in our Solar System that has captured the attention of astronomers and space enthusiasts alike. With a (1221) Amor radius of 1.5 km, making it 4247.3× smaller than Earth's size, this celestial body presents unique characteristics that distinguish it from other objects in our cosmic neighborhood. Positioned at an average distance of 2.87e+8 km (1.920 AU) from the Sun, (1221) Amor occupies a significant place in the Solar System's architecture. As an asteroid, (1221) Amor represents the remnants of the early Solar System, providing valuable insights into the formation and evolution of our cosmic neighborhood.

Physical Characteristics

The (1221) Amor physical characteristics reveal a world of remarkable dimensions and properties. The (1221) Amor radius measures 1.5 km, making it 4247.3× smaller than Earth's size. The (1221) Amor mass of 3.50e+12 kg represents 1706285714285.7× smaller than Earth's mass, giving this world substantial gravitational influence.

Orbital Properties

The (1221) Amor orbit reveals fascinating details about its journey around the Sun and its relationship to other Solar System objects. The (1221) Amor orbit has a semimajor axis of 2.87e+8 km (1.920 AU), placing it 1.9× Earth's distance from the Sun. At its closest approach (perihelion), (1221) Amor comes within 1.62e+8 km of the Sun, while at its farthest point (aphelion), it reaches 4.12e+8 km, creating a 86.9% variation in solar distance. The (1221) Amor orbit is moderately elliptical with an eccentricity of 0.435 (26.0× Earth's orbital eccentricity), creating noticeable seasonal variations in solar radiation. The (1221) Amor orbit takes 0.27 hours to complete (32479.4× smaller than Earth's orbital period), defining the length of its year. The orbital inclination of 11.879° indicates how much the (1221) Amor orbit is tilted relative to the Solar System's ecliptic plane. This moderate inclination indicates a typical orbital evolution for objects in this region of the Solar System.

Rotation and Tilt

The (1221) Amor rotation and axial orientation provide crucial insights into its daily and seasonal cycles, as well as its orbital dynamics. The (1221) Amor axial tilt of 0° determines the intensity and nature of seasonal variations. With minimal axial tilt, (1221) Amor experiences virtually no seasonal changes, maintaining relatively constant temperatures throughout its year. The orbital orientation parameters reveal additional details about (1221) Amor's position in space. The mean anomaly of 49.408° indicates the planet's current position in its orbit relative to its perihelion. The argument of periapsis of 26.436° shows how the orbit's orientation changes over time due to gravitational perturbations. The longitude of ascending node of 171.418° defines the reference point where the orbit crosses the ecliptic plane.

Temperature and Atmosphere

The (1221) Amor temperature and atmospheric conditions are fundamental to understanding its habitability and environmental characteristics. The (1221) Amor average temperature of 0.0 K (-273.1 °C) (-459.7°F) provides the baseline for understanding its climate. These extremely cold temperatures make (1221) Amor inhospitable to life as we know it, with any atmosphere likely frozen solid on the surface. Compared to Earth's average temperature of 15°C (59°F), (1221) Amor presents a dramatically different thermal environment. At a similar distance to Earth from the Sun, (1221) Amor's temperature is primarily influenced by its atmospheric composition and albedo. The elliptical orbit creates significant temperature variations throughout the year, with extreme seasonal changes.

Escape Velocity & Flattening

The (1221) Amor escape velocity and shape characteristics reveal important details about its gravitational field and rotational dynamics. The (1221) Amor escape velocity of 0.001 m/s (14159493.7× smaller than Earth's escape velocity) determines how easily objects can break free from its gravitational pull. This relatively low escape velocity means that gases and light molecules can easily escape into space, making it difficult for (1221) Amor to retain a substantial atmosphere. The (1221) Amor flattening of 0.0000% indicates how much the planet's rotation affects its shape. This minimal flattening suggests a nearly spherical shape, indicating either slow rotation or a very rigid internal structure.

FAQs About (1221) Amor

What is the gravity on (1221) Amor?

The gravity on (1221) Amor is 0 m/s² (23357.1× smaller than Earth's gravity). This gravitational force determines how objects behave on the surface, affects atmospheric retention, and influences the planet's ability to hold onto gases and particles. A person weighing 70 kg on Earth would weigh 0.0 kg on (1221) Amor.

How big is (1221) Amor compared to Earth?

(1221) Amor has a radius of 1.5 km, making it 4247.3× smaller than Earth's size. In terms of volume, (1221) Amor is 0.0× the size of Earth. This size difference significantly impacts the planet's gravity, atmospheric retention, geological processes, and overall planetary characteristics.

How far is (1221) Amor from the Sun?

(1221) Amor orbits at an average distance of 2.87e+8 km (1.920 AU) from the Sun, placing it 1.9× Earth's distance from the Sun. This distance determines the amount of solar radiation the planet receives and significantly influences its temperature and climate.

How long is a year on (1221) Amor?

A year on (1221) Amor lasts 0.27 hours (32479.4× smaller than Earth's orbital period). This orbital period defines the length of the planet's year and affects seasonal patterns, temperature variations, and the overall climate cycle.

What is the escape velocity of (1221) Amor?

The escape velocity of (1221) Amor is 0.001 m/s (14159493.7× smaller than Earth's escape velocity). This is the minimum speed required for an object to break free from the planet's gravitational pull and enter space. The low escape velocity makes it difficult for the planet to retain an atmosphere.

Does (1221) Amor have seasons?

(1221) Amor has an axial tilt of . With minimal axial tilt, the planet experiences virtually no seasonal changes, maintaining relatively constant temperatures throughout its year.
Discovery Information
Discovered By
Eugène Joseph Delporte
Discovery Date
12/03/1932
Raw Data