Isonoe

Alternative name: Also known as: S/2000 J 6

Moon
Physical Properties
Mean Radius
1.9km
Equatorial Radius
0km
Polar Radius
0km
Mass
7.50e+13 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
2.32e+7km
Perihelion
0km
Aphelion
0km
Eccentricity
0.246
Inclination
165.2°
Sidereal Orbit
0.20 hours
Sidereal Rotation
0 seconds
Mean Anomaly
0°
Argument of Periapsis
0°
Longitude of Ascending Node
0°

Overview of Isonoe

Isonoe is a fascinating moon in our Solar System that has captured the attention of astronomers and space enthusiasts alike. With a Isonoe radius of 1.9 km, making it 3353.2× 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 2.32e+7 km (0.155 AU) from the Sun, Isonoe occupies a significant place in the Solar System's architecture. As a moon, Isonoe demonstrates the incredible diversity of natural satellites that orbit larger celestial bodies throughout our Solar System.

Physical Characteristics

The Isonoe physical characteristics reveal a world of remarkable dimensions and properties. The Isonoe radius measures 1.9 km, making it 3353.2× smaller than Earth's size. The Isonoe mass of 7.50e+13 kg represents 79626666666.7× smaller than Earth's mass, giving this world substantial gravitational influence.

Orbital Properties

The Isonoe orbit reveals fascinating details about its journey around the Sun and its relationship to other Solar System objects. The Isonoe orbit has a semimajor axis of 2.32e+7 km (0.155 AU), placing it 6.4× smaller than Earth's distance from the Sun. The Isonoe orbit is moderately elliptical with an eccentricity of 0.246 (14.7× Earth's orbital eccentricity), creating noticeable seasonal variations in solar radiation. The Isonoe orbit takes 0.20 hours to complete (43498.5× smaller than Earth's orbital period), defining the length of its year. The orbital inclination of 165.2° indicates how much the Isonoe orbit is tilted relative to the Solar System's ecliptic plane. This high inclination suggests Isonoe may have experienced significant gravitational perturbations or formed in a different region of the Solar System.

Rotation and Tilt

The Isonoe rotation and axial orientation provide crucial insights into its daily and seasonal cycles, as well as its orbital dynamics. The Isonoe axial tilt of 0° determines the intensity and nature of seasonal variations. With minimal axial tilt, Isonoe experiences virtually no seasonal changes, maintaining relatively constant temperatures throughout its year. The orbital orientation parameters reveal additional details about Isonoe'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 Isonoe temperature and atmospheric conditions are fundamental to understanding its habitability and environmental characteristics. The Isonoe average temperature of 0.0 K (-273.1 °C) (-459.7°F) provides the baseline for understanding its climate. These extremely cold temperatures make Isonoe 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), Isonoe presents a dramatically different thermal environment. Being closer to the Sun than Earth, Isonoe receives more intense solar radiation, contributing to its temperature profile. The elliptical orbit creates significant temperature variations throughout the year, with extreme seasonal changes.

Escape Velocity & Flattening

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

How big is Isonoe compared to Earth?

Isonoe has a radius of 1.9 km, making it 3353.2× smaller than Earth's size. In terms of volume, Isonoe 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 Isonoe from the Sun?

Isonoe orbits at an average distance of 2.32e+7 km (0.155 AU) from the Sun, placing it 6.4× 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 Isonoe?

A year on Isonoe lasts 0.20 hours (43498.5× 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 Isonoe made of?

Isonoe 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 Isonoe have seasons?

Isonoe 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
Scott S. Sheppard, David C. Jewitt
Discovery Date
23/11/2000
Raw Data
Orbits AroundParent Body