Asteroid
Near-Earth
Morpheus
4197 Morpheus (1982 TA)
Where is it now
- Distance from Sun
- 4.06 AU
- True anomaly
- 182.04°
- As of
- 29 August 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
Orbital elements
- Semi-major axis
- 2.296 AU
- Eccentricity
- 0.7725
- Inclination
- 12.61°
- Orbital period
- 3.48 years
- Perihelion
- 0.522 AU
- Aphelion
- 4.069 AU
- Longitude of ascending node
- 6.96°
- Argument of periapsis
- 122.61°
- Epoch · J2000
- 2461200.5
Physical properties
- Mean radius
- 0.90 km
- Rotation period
- 3.54 hours
Visual & observation
- Geometric albedo
- 0.37
- Absolute magnitude (H)
- 14.97
- Spectral type
- APO
Discovery & classification
Near-Earth Object
Named