Leda

Leda is a fascinating moon in our Solar System that has captured the attention of astronomers and space enthusiasts alike. With a Leda radius of 5 km, making it 1274.2× 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 1.12e+7 km (0.075 AU) from the Sun, Leda occupies a significant place in the Solar System's architecture. As a moon, Leda demonstrates the incredible diversity of natural satellites that orbit larger celestial bodies throughout our Solar System.

The Leda physical characteristics reveal a world of remarkable dimensions and properties. The Leda radius measures 5 km, making it 1274.2× smaller than Earth's size. The Leda mass of 6.00e+17 kg represents 9953333.3× smaller than Earth's mass, giving this world substantial gravitational influence. The Leda density of 1 g/cm³ (5.5× smaller than Earth's density) provides clues about its internal composition, while the surface gravity of 0.007 m/s² (1343.8× smaller than Earth's gravity) determines how objects behave on its surface. The low density indicates a composition dominated by lighter elements, characteristic of gas giants or icy bodies.

The Leda orbit reveals fascinating details about its journey around the Sun and its relationship to other Solar System objects. The Leda orbit has a semimajor axis of 1.12e+7 km (0.075 AU), placing it 13.4× smaller than Earth's distance from the Sun. The Leda orbit is moderately elliptical with an eccentricity of 0.164 (9.8× Earth's orbital eccentricity), creating noticeable seasonal variations in solar radiation. The Leda orbit takes 0.07 hours to complete (130990.2× smaller than Earth's orbital period), defining the length of its year. The orbital inclination of 27.46° indicates how much the Leda 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.

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

The Leda temperature and atmospheric conditions are fundamental to understanding its habitability and environmental characteristics. The Leda average temperature of 0.0 K (-273.1 °C) (-459.7°F) provides the baseline for understanding its climate. These extremely cold temperatures make Leda 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), Leda presents a dramatically different thermal environment. Being closer to the Sun than Earth, Leda receives more intense solar radiation, contributing to its temperature profile. The elliptical orbit creates significant temperature variations throughout the year, with extreme seasonal changes.

The Leda escape velocity and shape characteristics reveal important details about its gravitational field and rotational dynamics. The Leda 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 Leda to retain a substantial atmosphere. The Leda 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.