3753 Cruithne

Alternative name: Also known as: 1983 UH - 1986 TO

Asteroid
Physical Properties
Mean Radius
2.5km
Equatorial Radius
0km
Polar Radius
0km
Mass
1.30e+14 kg
Volume
Density
1g/cm³
Gravity
0m/s²
Escape Velocity
0m/s
Flattening
0
Average Temperature
0.0 K (-273.1 °C)
Axial Tilt
0°
Semimajor Axis
1.49e+8km
Perihelion
7.24e+7km
Aphelion
2.26e+8km
Eccentricity
0.515
Inclination
19.807°
Sidereal Orbit
0.10 hours
Sidereal Rotation
0 seconds
Mean Anomaly
0°
Argument of Periapsis
0°
Longitude of Ascending Node
0°

Overview of 3753 Cruithne

3753 Cruithne is a fascinating asteroid in our Solar System that has captured the attention of astronomers and space enthusiasts alike. With a 3753 Cruithne radius of 2.5 km, making it 2548.4× 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 1.49e+8 km (0.998 AU) from the Sun, 3753 Cruithne occupies a significant place in the Solar System's architecture. As an asteroid, 3753 Cruithne represents the remnants of the early Solar System, providing valuable insights into the formation and evolution of our cosmic neighborhood.

Physical Characteristics

The 3753 Cruithne physical characteristics reveal a world of remarkable dimensions and properties. The 3753 Cruithne radius measures 2.5 km, making it 2548.4× smaller than Earth's size. The 3753 Cruithne mass of 1.30e+14 kg represents 45938461538.5× smaller than Earth's mass, giving this world substantial gravitational influence.

Orbital Properties

The 3753 Cruithne orbit reveals fascinating details about its journey around the Sun and its relationship to other Solar System objects. The 3753 Cruithne orbit has a semimajor axis of 1.49e+8 km (0.998 AU), placing it 1.0× smaller than Earth's distance from the Sun. At its closest approach (perihelion), 3753 Cruithne comes within 7.24e+7 km of the Sun, while at its farthest point (aphelion), it reaches 2.26e+8 km, creating a 103.0% variation in solar distance. The 3753 Cruithne orbit is highly elliptical with an eccentricity of 0.515 (30.8× Earth's orbital eccentricity), leading to extreme variations in temperature and solar exposure. The 3753 Cruithne orbit takes 0.10 hours to complete (86693.7× smaller than Earth's orbital period), defining the length of its year. The orbital inclination of 19.807° indicates how much the 3753 Cruithne 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 3753 Cruithne rotation and axial orientation provide crucial insights into its daily and seasonal cycles, as well as its orbital dynamics. The 3753 Cruithne axial tilt of 0° determines the intensity and nature of seasonal variations. With minimal axial tilt, 3753 Cruithne experiences virtually no seasonal changes, maintaining relatively constant temperatures throughout its year. The orbital orientation parameters reveal additional details about 3753 Cruithne's position in space. The mean anomaly of indicates the planet's current position in its orbit relative to its perihelion. The argument of periapsis of shows how the orbit's orientation changes over time due to gravitational perturbations. The longitude of ascending node of defines the reference point where the orbit crosses the ecliptic plane.

Temperature and Atmosphere

The 3753 Cruithne temperature and atmospheric conditions are fundamental to understanding its habitability and environmental characteristics. The 3753 Cruithne average temperature of 0.0 K (-273.1 °C) (-459.7°F) provides the baseline for understanding its climate. These extremely cold temperatures make 3753 Cruithne 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), 3753 Cruithne presents a dramatically different thermal environment. At a similar distance to Earth from the Sun, 3753 Cruithne'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 3753 Cruithne escape velocity and shape characteristics reveal important details about its gravitational field and rotational dynamics. The 3753 Cruithne escape velocity of 0 m/s 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 3753 Cruithne to retain a substantial atmosphere. The 3753 Cruithne 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 3753 Cruithne

How big is 3753 Cruithne compared to Earth?

3753 Cruithne has a radius of 2.5 km, making it 2548.4× smaller than Earth's size. In terms of volume, 3753 Cruithne 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 3753 Cruithne from the Sun?

3753 Cruithne orbits at an average distance of 1.49e+8 km (0.998 AU) from the Sun, placing it 1.0× smaller than 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 3753 Cruithne?

A year on 3753 Cruithne lasts 0.10 hours (86693.7× 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 3753 Cruithne made of?

3753 Cruithne has a density of 1 g/cm³ (5.5× smaller than Earth's density). This density provides important clues about the planet's internal composition. The low density indicates a composition dominated by lighter elements, characteristic of gas giants or icy bodies.

Does 3753 Cruithne have seasons?

3753 Cruithne 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
J. Duncan Waldron, Giovanni de Sanctis, Richard M. West
Discovery Date
10/10/1986
Raw Data