Bju earth science chapter 24 by danielle and ailene

Which pair of elements makes up the bulk of most stars including our sun?

The brightness of a star as it appears from earth is its...

as a yellow dwarf the sun lies on the main sequence of the Hertzsprung Russell diagram

Christians who want to become astronomers should probably look for some other kind of work

this is a ..... galaxy

The distance that light travels in a year is a......

A low mass star had less mass than our own sun

Cosmology is the study of how the universe began and how it has changed over time.

Why is the Hubble Space Telescope useful.

this is a ..... galaxy

Which stellar classification is expressed using roman numerals?

Created an early catalog of non-stellar objects and used M to identify them.

What are declination and right ascension used for?

astronomers classify the sun as a largish yellow WHAT star

The largest galaxies known are elliptical galaxies

Developed the theories of relativity.

Wrote an equation for calculating the probability of extraterrestrial life that led to SETI.

Divided star into six different ranks of magnitude.

A light-year is larger than a parsec

in general any recognizable pattern of stars is called a ...

our sun is found in what galaxy

Proposed an idea that became the Big Bang Theory.

Identified stars by their brightness within constellations.

Astronomers believe that most of the stars in our galaxy are eclipsing binary stars.

unlike most scientists astronomers cant carry our experiments to prove their theories

Created the New General Catalog listing over 13,000 nebulas and other non-stellar objects.

Who developed the relationship between red shift and stellar distance?

this is a ..... galaxy

what is a cloud of gas or dust that can be seen against a background of stars called

The milky way is