Grigg–Skjellerup in 3D: live position and orbit

A comet about 2.6 kilometres across. ESA’s Giotto flew past it at about 200 kilometres in July 1992, after its encounter with Halley.

Grigg–Skjellerup is shown at its real position, computed from NASA/JPL ephemeris data. The view opens on Grigg–Skjellerup; you can travel in time, switch between the educational overview and the true-scale voyage, and compare it with every other body of the solar system.

Radius

1.3 km¹ (derived value)

Mean distance from the Sun

3.014 AU² (derived value)

Orbital period

1 911 days² (derived value)

Known moons

0 (as of October 2026)¹

Missions

• Giotto Extended Mission

Sources

1. NASA JPL Solar System Dynamics, Small-Body Database. read 2026-09-17. https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html
2. NASA JPL Solar System Dynamics, Horizons System (osculating orbital elements). read 2026-09-17. https://ssd.jpl.nasa.gov/horizons/