scie stars Flashcards
is oval, with a
bright center that gradually,
evenly dims to the edges. They
are usually the brightest
galaxies.
Elliptical galaxy
are not
asymmetrical and do not look
like spiral or elliptical galaxies.
Irregular galaxy
is a group of
stars that looks like a particular
shape in the sky and has been
given a name.
constellation
consist of a
central mass with one, two, or
three arms that spiral around
the center. Spiral galaxies are
flattened pinwheels in shape.
Spiral galaxies
are balls of gas that shine
or used to shine because of
nuclear fusion in their cores.
stars
A cloud of interstellar gas and dust
that gradually collapses, forming a
hot dense core, and evolves into a
star once nuclear fusion can occur in
the core.
protostar
What are the colors of stars
1.blue
2.blue white
3.yellow
4.orange
5.red
is any star that
has a hot, dense core
which fuses
hydrogen into helium
to produce energy.
Main-Sequence
Star
Stars swell as they move off the
main sequence, becoming giants
and for more massive stars–
supergiants.
Giant and Supergiant Stars
these stars are
smaller and dimmer
White dwarf stars
(dead star)
*Black dwarf
binary, or double, star in
which one member is a white dwarf
and the other is a giant or
supergiant.
Novas
star that suddenly
increases greatly in brightness
because of a catastrophic
explosion that ejects most of its
mass.
Supernovas
are the collapsed
cores sometimes left behind by
supernovas explosions.
Neutron Stars
are a special type of
neutron star. Pulsars and neutron
stars form when the remnant of a
star left after a supernova
explosion.
Pulsars
are objects that are so
massive and dense that their
immense gravitational pull does
not even let light escape.
Blackholes
first ever picture of a black hole was taken by
NASA’s telescope, Event Horizon, and was released on
Wednesday, April 10, 2019
This particular
black hole, was named
m87
Huge collections of billions of stars
Contain dark strips of dust and may
contain huge black holes at their
centers
Galaxies
