Sun Atmosphere
Solar Activity
Spectra
Groups of stars
Other
100
This is the innermost layer of the sun's atmosphere, and is where most of the visible light comes from
Photosphere
100
These are dark spots on the surface of the photosphere
Sunspots
100
This spectra contains no breaks.
Continuous
100
Groups of stars named after figures or objects are called
Constellations
100
The shift in position caused by the motion of the observer is called ________
Parallax
200
This is the outermost, and hottest layer of the sun's atmosphere.
Corona
200
These are violent eruptions of particles and radiation from the surface of the sun.
Solar flares
200
The spectrum causes by emission of certain wavelengths of light is called the ________ spectra
Emission
200
A cluster of stars that are not tightly grouped
Open cluster
200
A ______ is equal to 3.26 lightyears
Parsec
300
This is the middle layer of the sun's atmosphere
Chromosphere
300
These are arcs of gas ejected from the upper layers of the sun's atmosphere that are usually captured and rain back to the sun.
Solar Prominence
300
This is the spectrum where dark lines appear at wavelengths absorbed certain elements
Absorption spectrum
300
A group of stars which are tightly grouped into a spherical shape
Globular cluster
300
______ magnitude is how bright a star would appear if at a distance of 10 parsecs
Absolute
400
This is a stream of particles from the corona which reaches all planets.
Solar Wind
400
The solar maximum in sunspots occurs every ______ years.
11.2
400
The sun is composed of _____% helium and ____ % hydrogen
70% H 28% He
400
A binary star appears to be __ star, but is actually __
1,2
400
The could of dust and gas from which stars and planets form is called a _________
Nebula
500
These are the 2 layers of the sun's atmosphere that can only be seen during eclipses.
Corona and Chromosphere
500
When the sun's magnetic field reversal is taken into consideration, the entire solar activity is ________ years.
22.4
500
The planet in our solar system most similar to the sun's composition
Jupiter
500
Constellations that appear to move around the north pole and are visible year-round are called__________ constellations
Circumpolar
500
When a star is moving towards you, the wave will be _______ and will appear _____shifted
compressed, blue
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