Transcript This is the Edge

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.
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Neptune is slightly
More massive
Radiates its own heat
Great dark spot!
Radiates more heat
Than its gets from sun
Neptune
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
Triton (2800 km)
Voyager flyby Neptune and Triton
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?
Moving on to other stars….
Artists conception of Xenia and the Solar
System…100AU from Sun. Note the 44
degree tilt of orbit.
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?
Gliese 581e 3.5
ME
• http://www.youtube.com/watch?v=5w7NUsBcgyw