This is the End Image from APOD Image from APOD (credit and copyright Michael Wilson) Artists conception of Xenia and the Solar System…100AU from Sun.

This is the End

Image from APOD (credit and copyright Michael Wilson)

Artists conception of Xenia and the Solar System…100AU from

Sun. Note the 44 degree tilt of orbit.

New Horizons on its out

What about Uranus and Neptune– Uranus doesn’t

show much detail..

– About 15 Earth masses

– Methane Atmosphere

– Too cold for storms etc.

Neptune

• Neptune is slightly

• More massive

• Radiates its own heat

• Great dark spot!

• Radiates more heat

• Than its gets from sun

Neptune Interior

Bulls Eye!

Uranian Moons….

Miranda and Ariel

D = 500 Km D = 1500 Km

Neptune’s System

D = 500 Km D = 1500 Km

Voyager flyby Neptune and Triton

Neptune’s System

Voyager flyby Neptune and Triton

Triton (2800 km)

Small Compared with Familiar Moons and Planets…..

Neptune’s System

Voyager flyby Neptune and Triton

Meet some new family members

Quoar’s Orbit

What would a dwarf planet KBO look like near the sun?

Image from APOD (credit and copyright Jimmy Westlake)

How out does the solar system go?

Artists conception of Xenia and the Solar System…100AU from Sun. Note the 44

degree tilt of orbit.

Moving on to other stars….

A rare find..inner planets

A rare find..inner planets

The doppler method of finding planets

What is density?

density = mass/volume

Where to look for life?

A growth industry!

First image of extra solar planet (5MJ)

Spacecraft Missions--categories

Gliese 876d

Star M3

15 lyrs

D= .02 AU

M = 7.5 ME

Gliese 876 b,c

in 2:1 orbital resonance

The HD 69830 system

Earth like planets?

• http://www.youtube.com/watch?v=5w7NUsBcgyw

Gliese 581e 3.5 ME