(163693) Atira

(163693) Atira is a fascinating asteroid in our Solar System that has captured the attention of astronomers and space enthusiasts alike. Positioned at an average distance of 1.11e+8 km (0.741 AU) from the Sun, (163693) Atira occupies a significant place in the Solar System's architecture. As an asteroid, (163693) Atira represents the remnants of the early Solar System, providing valuable insights into the formation and evolution of our cosmic neighborhood.

The (163693) Atira physical characteristics reveal a world of remarkable dimensions and properties. The (163693) Atira mass of 1.00e+12 kg represents 5972000000000.0× smaller than Earth's mass, giving this world substantial gravitational influence.

The (163693) Atira orbit reveals fascinating details about its journey around the Sun and its relationship to other Solar System objects. The (163693) Atira orbit has a semimajor axis of 1.11e+8 km (0.741 AU), placing it 1.3× smaller than Earth's distance from the Sun. At its closest approach (perihelion), (163693) Atira comes within 7.51e+7 km of the Sun, while at its farthest point (aphelion), it reaches 1.47e+8 km, creating a 64.4% variation in solar distance. The (163693) Atira orbit is moderately elliptical with an eccentricity of 0.322 (19.3× Earth's orbital eccentricity), creating noticeable seasonal variations in solar radiation. The (163693) Atira orbit takes 0.06 hours to complete (135427.6× smaller than Earth's orbital period), defining the length of its year. The orbital inclination of 25.62° indicates how much the (163693) Atira 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 (163693) Atira rotation and axial orientation provide crucial insights into its daily and seasonal cycles, as well as its orbital dynamics. The (163693) Atira rotation period of 0.00 hours (25357.3× smaller than Earth's rotation period) determines the length of its day. This extremely fast rotation creates intense centrifugal forces and may contribute to the planet's flattened shape. The (163693) Atira axial tilt of 0° determines the intensity and nature of seasonal variations. With minimal axial tilt, (163693) Atira experiences virtually no seasonal changes, maintaining relatively constant temperatures throughout its year. The orbital orientation parameters reveal additional details about (163693) Atira's position in space. The mean anomaly of 20.298° indicates the planet's current position in its orbit relative to its perihelion. The argument of periapsis of 252.914° shows how the orbit's orientation changes over time due to gravitational perturbations. The longitude of ascending node of 103.952° defines the reference point where the orbit crosses the ecliptic plane.

The (163693) Atira temperature and atmospheric conditions are fundamental to understanding its habitability and environmental characteristics. The (163693) Atira average temperature of 0.0 K (-273.1 °C) (-459.7°F) provides the baseline for understanding its climate. These extremely cold temperatures make (163693) Atira 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), (163693) Atira presents a dramatically different thermal environment. At a similar distance to Earth from the Sun, (163693) Atira'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.

The (163693) Atira escape velocity and shape characteristics reveal important details about its gravitational field and rotational dynamics. The (163693) Atira 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 (163693) Atira to retain a substantial atmosphere. The (163693) Atira 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.