Jupiter Consummate Jovian Presented by Professor Harold Geller

Jupiter: Consummate Jovian Presented by Professor Harold Geller Department of Physics and Astronomy George Mason University

What I’m Going to Talk About • Jupiter as a jovian planet – – – – – mass diameter distance from sun chemical constituents formation atmosphere inner layers rings moons

Jupiter Statistics • Distance from sun – 778. 4 million km (5. 2 AU) • Orbital eccentricity and inclination – 0. 048 eccentricity – 1. 31 degrees inclination • Orbital speed and period – 13. 1 km/s – 11. 86 years sidereal period • Mass – 1. 99 x 1027 kg (317. 8 x Earth) • Equatorial Diameter – 143, 000 km (11. 2 x Earth)

More Jupiter Statistics • Mean density – 1. 33 g/cm 3 (0. 24 x Earth) • Surface gravity – 24. 8 m/s 2 (2. 53 x Earth) • Escape velocity – 59. 5 km/s • Axial tilt – 3. 08 degrees • Temperature at cloud top – 124 K • Number of Moons – What’s a moon anyway

Where Are We?

Jovians and Terrestrials Relative size of all planets (distances NOT to scale)

[Source: James Schombert, University of Oregon]

Top-Level Look and See [Source: James Schombert, University of Oregon]

NOT a Perfect Sphere [Source: James Schombert, University of Oregon]

[Source: James Schombert, University of Oregon]

Atmospheric Appearance • Fluid Mechanics • viscous flow • turbulent flow • eddies • cyclones [Source: James Schombert, University of Oregon]

Jupiter’s Interior [Source: James Schombert, University of Oregon]

Jupiter’s Magnetic Field [Source: James Schombert, University of Oregon]

Synchrotron Radiation [Source: James Schombert, University of Oregon]

Jupiter’s Aurora [Source: Clarke (Michigan) and NASA STSc. I]