Transcript Nebula - Londonderry School District

Nebula

A cloud of gas and
dust; the first stage in
a stars life (where
stars are “born”)
en.wikipedia.org/wiki/Image:Orion_Nebula_-_Hubble_2006
Protostar

A star during its first
contraction (a “baby”
star).
http://www.celestiamotherlode.net/catalog/images/screenshots/fictional/protostar
Main Sequence

A middle-aged stable
star (like our sun)
http://cse.ssl.berkeley.edu/bmendez/ay10/2002/notes/pics/bt2lf1510_a.jpg
Red Giant

A large, bright cool
star
http://www-astronomy.mps.ohio-state.edu/~pogge/Ast162/Unit2/Images/rsgstar.gif
White Dwarf

A small, dim, hot star
Black Dwarf
When a white dwarf
stops giving off light
and there is no gas
left to burn.
 Cold and dark.

library.thinkquest.org
Neutron Star
Collapsed dense core
of a star that forms
quickly while its outer
layers are falling
inward.
 Mass is up to 3 times
the sun with a radius
of 10 km.
 Has only neutrons.

http://filer.case.edu/~sjr16/media/stars_neutron_diagram.jpg
Black Hole
A collapsed star so
dense that light
cannot escape its
gravitational pull (it
http://
cannot be seen).
 The end stage of an
extremely large star.


http://filer.case.edu/sjr16
/media/stars_blackhole_a
natomy.jpg
www.bbc.co.uk/derby/unexplained/images/black_hole_270.jpg
Nova

A sudden brightening
of a dwarf star.

http://www.bbc.co.uk/nor
folk/kids/astronomy/nova
_270.jpg
Supernova
A massive explosion
in which the outer
layers of a massive
star are blown away.
 This creates elements
heavier than iron.


http://www.sacredground
.cc/super%20nova%20ca
ssiopeia.jpg
Quasar

A very bight “star
like”, distant object in
space that has
emission lines in their
spectra.

http://outreach.jach.haw
aii.edu/pressroom/2003_
distantquasar/quasar_sim
onnet.jpg
Pulsar

A rapidly spinning
neutron star which
sends out pulses of
radio waves
hep.ph.liv.ac.uk
Variable Star

A main sequence star
which expands and
contracts over time.
It varies in
http://
temperature,
brightness and size,
because of inward
pull of gravity/
outward force of
fusion
courses.nnu.edu/ph106wj/i
mages/Variable_star.jpg
http://helios.augustana.edu/science/img-APOD/variable-star-v838-mon-300.jpg