Orthosie

Alternative name: Also known as: S/2001 J 9

Moon
Physical Properties
Mean Radius
1km
Equatorial Radius
0km
Polar Radius
0km
Mass
1.50e+13 kg
Volume
Density
1g/cm³
Gravity
0.001m/s²
Escape Velocity
0m/s
Flattening
0
Average Temperature
0.0 K (-273.1 °C)
Axial Tilt
0°
Semimajor Axis
2.07e+7km
Perihelion
0km
Aphelion
0km
Eccentricity
0.281
Inclination
145.9°
Sidereal Orbit
0.17 hours
Sidereal Rotation
0 seconds
Mean Anomaly
0°
Argument of Periapsis
0°
Longitude of Ascending Node
0°

Overview of Orthosie

Orthosie is a fascinating moon in our Solar System that has captured the attention of astronomers and space enthusiasts alike. With a Orthosie radius of 1 km, making it 6371.0× 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 2.07e+7 km (0.139 AU) from the Sun, Orthosie occupies a significant place in the Solar System's architecture. As a moon, Orthosie demonstrates the incredible diversity of natural satellites that orbit larger celestial bodies throughout our Solar System.

Physical Characteristics

The Orthosie physical characteristics reveal a world of remarkable dimensions and properties. The Orthosie radius measures 1 km, making it 6371.0× smaller than Earth's size. The Orthosie mass of 1.50e+13 kg represents 398133333333.3× smaller than Earth's mass, giving this world substantial gravitational influence. The Orthosie density of 1 g/cm³ (5.5× smaller than Earth's density) provides clues about its internal composition, while the surface gravity of 0.001 m/s² (12111.1× 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.

Orbital Properties

The Orthosie orbit reveals fascinating details about its journey around the Sun and its relationship to other Solar System objects. The Orthosie orbit has a semimajor axis of 2.07e+7 km (0.139 AU), placing it 7.2× smaller than Earth's distance from the Sun. The Orthosie orbit is moderately elliptical with an eccentricity of 0.281 (16.8× Earth's orbital eccentricity), creating noticeable seasonal variations in solar radiation. The Orthosie orbit takes 0.17 hours to complete (50687.7× smaller than Earth's orbital period), defining the length of its year. The orbital inclination of 145.9° indicates how much the Orthosie orbit is tilted relative to the Solar System's ecliptic plane. This high inclination suggests Orthosie may have experienced significant gravitational perturbations or formed in a different region of the Solar System.

Rotation and Tilt

The Orthosie rotation and axial orientation provide crucial insights into its daily and seasonal cycles, as well as its orbital dynamics. The Orthosie axial tilt of 0° determines the intensity and nature of seasonal variations. With minimal axial tilt, Orthosie experiences virtually no seasonal changes, maintaining relatively constant temperatures throughout its year. The orbital orientation parameters reveal additional details about Orthosie'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 Orthosie temperature and atmospheric conditions are fundamental to understanding its habitability and environmental characteristics. The Orthosie average temperature of 0.0 K (-273.1 °C) (-459.7°F) provides the baseline for understanding its climate. These extremely cold temperatures make Orthosie 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), Orthosie presents a dramatically different thermal environment. Being closer to the Sun than Earth, Orthosie 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 Orthosie escape velocity and shape characteristics reveal important details about its gravitational field and rotational dynamics. The Orthosie 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 Orthosie to retain a substantial atmosphere. The Orthosie 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 Orthosie

What is the gravity on Orthosie?

The gravity on Orthosie is 0.001 m/s² (12111.1× 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 Orthosie.

How big is Orthosie compared to Earth?

Orthosie has a radius of 1 km, making it 6371.0× smaller than Earth's size. In terms of volume, Orthosie 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 Orthosie from the Sun?

Orthosie orbits at an average distance of 2.07e+7 km (0.139 AU) from the Sun, placing it 7.2× 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 Orthosie?

A year on Orthosie lasts 0.17 hours (50687.7× 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 Orthosie made of?

Orthosie 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 Orthosie have seasons?

Orthosie 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
11/12/2001
Raw Data
Orbits AroundParent Body