Astronomy 210
Lecture 21, March 7
Spring 2018
Lecture Notes:
pdf file
Distinguished Exoplanet Lecture Tonight!
Debris I:
Asteroids
Distribution and Orbits
Inner Solar System objects
plotted
Main Belt objects: Vesta
portrait
and
video
,
Gaspara
,
Ida & Dactyl
Near-Earth
objects
orbits seen from
top vs side
current events: asteroid collision
detected
Earth infall:
meteors
Leonids
, one
fireball
,
another
, and
another
Feb 15, 2013: Chelyabinsk meteor
flash
,
crater
, videos of
fall
,
impact
,
Daily Show
take
Structure:
NEAR
Mission to asteroid Eros:
Eros
overview
,
rotation movie
,
zoom
,
extreme closeup
composition
Dwarf planet
Ceres
:
gallery
Oumuamua
Debris II:
Comets
Hyakutake
,
West
,
Ikeya Seki
,
PanSTARRS
McNaught--brightest comet in decades!
over Catalonia
,
near Sun
,
over New Zealand
HST Hale-Bopp coma
Shoemaker-Levy 9
and
Jupiter
Sun-grazing comets
(
SOHO
):
image
,
movie
Structure:
Rosetta
comet
images
Tail
direction
, a particularly
striking
example, and
another
Kuiper Belt
: current data
plotted
Oort Cloud
Pluto
,
Eris
, and Planethood
Pluto
discovery
by Clyde Tombaugh (from Streator IL!)
Pluto
: Charon discovery
image
(1978) HST
image
(1994),
Pluto surface
(2001),
yet more moons
(2011)
New Horizons
gallery
Quaoar
,
Sedna
, and finally:
Eris
(nee Xena)
votes are in:
IAU resolution
demoting Pluto
Lecture Archive
Brian D. Fields
Last modified: Wed Mar 2 12:14:22 CST 2011