Galaxies Mini Quiz
Answer each question individually or all on the same page.
Our Galaxy is called the Milky Way because..?
- In pre-telescope times it was thought to look a milk-like path
- It looks like a bar of chocolate
We see the Milky Way from Earth...
- ..from above
- ...along its plane
- ...from below
The Milky Way is this type of galaxy..?
- Elliptical
- Spiral
- Spiral Barred
What is thought to be at the centre of the Milky Way?
- A Super Giant star
- A Super Massive Black hole
- A creamy nougat filling
How wide is the Milky Way?
- 30,000 to 70,000 light years across
- 70,000 to 100,000 light years across
- 100,000 to 150,000 light years across
What is its height along the plane?
- 500 light years
- 1,000 light years
- 1,500 light years
What distance from the centre of the Milky Way is our Sun located?
- Approx. 5-10,000 light years, near the centre
- Approx. 10-25,000 light years, half way along
- Approx. 25-30,000 light years, two-thirds along
How long does the Sun take to orbit the galaxy?
- Over 1 year
- Over 200 million years
- Over 5 billion years
Why do astronomers study the rotation of the galaxy at 21cm wavelengths?
- It lets them to see further past clouds of gas than visible light
- They only have a 21cm telescope
Where are star clusters positioned in respect to our galaxy?
- Around the Halo
- Along the Arms
- At the centre?
Where are globular clusters positioned in respect to our galaxy?
- Around the Halo
- Along the Arms
- At the centre?
Galaxies are grouped in which of these structures (tick all that apply)?
- Groups
- Clusters
- Superclusters
- Gangs
The local group of galaxies includes..? (Tick all that apply)
- Milky Way
- Andromeda
- Magellanic Clouds
- Triangulum Galaxy
Which of these galaxies does not have an obvious symmetry?
- Spiral galaxies
- Spiral Barred galaxies
- Elliptical galaxies
- Irregular galaxies
Which of these galaxies is flattened with arms winding around the nucleus.
- Spiral galaxies
- Spiral Barred galaxies
- Elliptical galaxies
- Irregular galaxies
Which of these galaxies is shaped like an ellipse, brighter towards the centre.
- Spiral galaxies
- Spiral Barred galaxies
- Elliptical galaxies
- Irregular galaxies
Which of these galaxies is flattened with arms extending from a bar through the nucleus.
- Spiral galaxies
- Spiral Barred galaxies
- Elliptical galaxies
- Irregular galaxies
Which of these are galaxies in the Hubble Tuning Fork diagram?
- E, S, SB
- E, I, S, SB
- E, I, E, I, O
What is an AGN?
- Active Galactic Nucleus
- A Galactic Neutron
- A Green Neutron
An AGN is powered by..?
- Radiation from star formation
- Supernova
- Matter falling into a black hole
This is an AGN that is moving away from us at extremely fast rates..?
- Seyfert
- Blazers
- Quasars
This is an AGN that has jets but ones that point towards Earth..?
- Seyfert
- Blazers
- Quasars
This is an AGN that has bright spectral emission lines caused by either the accretion disc or from highly ionized gas around its nucleus..?
- Seyfert
- Blazers
- Quasars