Stars and Galaxies Review

What type of Star:

What does a medium sized main sequence star become when fusion slows down?

A Red Giant

What type of Star:

What does a medium sized star become after all fusion stops?

A planetary nebula and then a white dwarf

What type of Star:

What is the very first stage that all stars go through?

Nebula

What type of Star:

What is a small, medium, or large star called when it is fusing hydrogen into helium?

A main sequence star

What type of Star:

What is a large star called when fusion slows down and it begins to fuse heavier elements?

A red super giant

What type of Star:

What type of star would have these characterstics: Color-white Diameter-1.5x solar diameter Mass-1.5x solar mass Elements-hydrogen and helium

Main Sequence

What type of Star:

What type of star would have these characterstics: Color-blue Diameter-2x solar diameter Mass-2x solar mass Elements-hydrogen and helium

Main Sequence

What type of Star:

What type of star would have these characterstics: Color-red Diameter-600x solar diameter Mass-1.5x solar mass Elements-Helium and carbon

Red Giant

What type of Star:

What type of star would have these characterstics: Color-white Diameter-0.01x solar diameter Mass-1.5x solar mass Elements-Helium and carbon

White dwarfs

Which stars have the hottest but dimmest stars?

White Dwarfs

Which group of stars have the coolest but the brightest stars?

Red Super giants and Giants

Which group of stars does our Sun belong to?

Main Sequence Stars

Which group of stars has both the hottest and brightest and the coolest and dimmest stars?

Main Sequence Stars

What type of shift?

Red Shift

What type of shift?

Red shift

Is this star moving towards theEarth or Away?

Towards

What type of shift?

Unshifted: 510Observed: 560

Red Shift

What color has the shortest wavelength?

Blue (violet)

What color has the longest wavelength?

Red

What color has the highest energy?

Blue (violet)

What color has the lowest energy?

Red

What is the relationship between wavelength of light and energy?

The longer the wavelength the lower the energy.

What type of shift?

Unshifted: 600Observed: 540

Blue shift

Is this star moving towards Earth or away?

Unshifted: 550Observed: 480

Towards

Is this star moving towards Earth or away from Earth?

Unshifted: 700Observed: 710

Away

What is the lightest element in the Universe? Hydrogen

What is the main fuel for stars? Hydrogen

What type of star?

Star characteristics Color-White Solar Mass- 2 x mass of the Sun Solar Diameter- 2 x diameter of the Sun Elements- Hydrogen, Helium

Main Sequence

What type of star?

Star characteristics Color-White Solar Mass- 1 x mass of the Sun Solar Diameter- 0.02 x diameter of the

Sun Elements- Carbon, Helium

White Dwarf

What type of star?

Star characteristics Color-Red Solar Mass- 1.5 x mass of the Sun Solar Diameter- 250 x diameter of the

Sun Elements- Carbon, Helium

Red Giant

What type of star?

Star characteristics Color-Blue Solar Mass- 1.5 x mass of the Sun Solar Diameter- 1.5 x diameter of the

Sun Elements- Hydrogen, Helium

Main Sequence

What type of star?

Star characteristics Color-Red Solar Mass- 1 x mass of the Sun Solar Diameter- 1 x diameter of the Sun Elements- Hydrogen, Helium

Main Sequence

Name that galaxy:

A galaxy that doesn’t rotate, is main composed of young stars, dust, and gas.

Irregular Galaxy

Name that galaxy:

A galaxy that has a dense core with arms that spiral out from the core.

Spiral Galaxy

Name that galaxy:

A galaxy with a central disc that is mainly older stars, it has very little gas and dust.

Elliptical Galaxy

What is missing?Birth Adult Old Age ????1. Nebula2. Protostar

Main Sequence Red Giant 1. Planetary Nebula

2. White DwarfSame Same Red Supergiant 1. ??????

2. ?????? or2. ??????

Death1. Super Nova2. Neutron Star or2. Black Hole

What is missing?

Birth ????? Old Age Death1. Nebula2. Protostar

????? Red Giant 1. Planetary Nebula

2. White DwarfSame Same Red Supergiant 1. Super Nova

2. Neutron Star or 2. Black Hole

Adult

Main Sequence Star

What is missing?Birth Adult ???? Death1. Nebula2. Protostar

Main Sequence ???? 1. Planetary Nebula

2. White DwarfSame Same ???? 1. Super Nova

2. Neutron Star or 2. Black Hole

Old Age

Red Giant

Red Supergiant

What is missing?Birth Adult Old Age ?????1. Nebula2. Protostar

Main Sequence Red Giant 1. ??????2. ??????

Same Same Red Supergiant 1. Super Nova2. Neutron Star or 2. Black Hole

Death1. Planetary Nebula2. White Dwarf