The Sun
Stars
The Life Cycle of Stars
Vocabulary
More Vocabulary
100

In this region of the sun, energy is created.

What is the core?

100

Using this technique, astronomers can accurately measure the distance of stars up to 100 pc away

What is parallax?

100

The life-cycle path followed by a star is determined largely by this feature of the star.

What is it's mass?

100

Visible light arranged according to wavelengths

What is electromagnetic radiation
100

This star pattern is produced by stars as seen from a point in space, such as the Earth.

What is a constellation?

200

These area of cooler temperature on the Sun's surface appear darker on imaging.

What are sunspots?

200

The apparent magnitude does not actually measure the brightness of the star because it does not account for this other characteristic.

What is distance?

200

The cloud of gas and dust form at the beginning of the life cycle of a star like our sun.

What is a nebula?

200

Minimum to maximum sunspots, a reversal of polarity, and minimum to maximum sunspots over a period of 22 years

What is solar activity cycle?

200

This explosion occurs when a large star exhausts its fuel supply.

What is a supernova?

300

Nuclear fusion in our sun consists primarily of this gas fusing to form helium.

What is hydrogen?

300

These two forces are balanced during the main sequence stage of a star, resulting in hydrostatic equilibrium.

What are gravity and thermal pressure?

300

This is the last visible phase that a star with the same initial mass as our sun will go through in its life cycle.

What is white dwarf?

300

Lowest layer of the Sun’s surface from which most of the light emitted by the Sun comes

What is the photosphere?

300

This loop of burning gas can erupt from the surface of a star.  It loops because of the magnetic field of the star.

What is a prominence?

400

In this zone of the solar interior, volumes of gas carry energy to the Sun’s surface

what is the convective zone?

400

This is the type of emission spectrum that our sun produces, due to gasses in the atmosphere of the sun and Earth.

What is dark-line or absorption spectrum.
400

Pulsars form from this type of collapsed large mass star.

What is a neutron star?

400

Section of the H-R diagram into which about 90 percent of stars fall

What is the main-sequence

400

This element is the last element a large star can make via fusion and once it is made, supernova occurs.

What is lead?

500

Earth is bombarded with particles and radiation after violent eruptions from the Sun’s surface by this phenomenon.

What are solar Flares?

500

This is the type of shift an astronomer would observe is a star was moving towards the Earth.

What is blueshift

500

This phase of a stars life cycle occurs when the star switches from fusing hydrogen to fusing other elements.

What is Red Giant?

500

Small, massive, dense object that has a gravity so immense that nothing—not even light—can escape it

What is a black hole

500

This is the beginning mass of dust and gas just before a star ignites.

What is protostar?