Hubble Galaxy Classification

Spiral galaxies also contain massive lanes of gas & dust which leads to

• supermassive black holes.

• quasars.

• large regions of new star formation.

• aliens.

Tags

NGSS.HS-ESS1-3

Compared to most elliptical galaxies, spiral galaxies are

• very large by comparison.

• very small by comparison.

• about the same size.

• are similar in size and shape to irregular galaxies.

The formation of giant elliptical galaxies may have been created by

• collisions of supermassive black holes.

• supernovae explosions and star mergers.

• collisions and mergers of small irregular galaxies.

• collisions and mergers of spiral galaxies.

Irregular galaxies are defined as having

• very little star formation.

• no real shape and are comparatively very small.

• no star formation

• supermassive black holes.

Tags

NGSS.HS-ESS1-3

What age are the stars in this galaxy?

• Young

• Old

• Mixture of young and old

Tags

NGSS.HS-ESS1-3

Examples of spiral galaxies include the

• Andromeda, Milky Way & the Sombrero galaxy.

• Milky Way, Large & Small Magellanic Clouds.

• M31, M33 & the Whirlpool galaxy.

• Sombrero, LMC & SMC

Tags

NGSS.MS-ESS1-2

How many main galaxy types are there in the observable universe?

• two

• three

• four

• infinite

Tags

NGSS.HS-ESS1-2

The spiral "antennae" galaxies got their name because they

• look like an insect's antennae in a small telescope.

• are colliding spiral galaxies.

• are colliding irregular galaxies.

• are colliding elliptical galaxies.

Barred spirals (SB) are further classified as "SBa" & "SBb" etc. based on

• the size of the central supermassive black hole.

• the distances of stars to the supermassive black hole.

• the amount of stars near the galactic bulge.

• stars that make up the bar size & shape.

What is the Hubble Galaxy Classification system primarily used for?

• Classifying stars based on their temperature

• Classifying galaxies based on their shape

• Classifying planets based on their size

• Classifying black holes based on their mass