light year

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light year

the distance light travels in one year, i.e. 5.9 x1012 miles.
References in periodicals archive ?
We are part of the Virgo Supercluster, made up of thousands of galaxies extending about 110 million light-years - or roughly 1,000 feet in our galaxy-as-a-dinner-plate scale.
91 billion light-years ago, the Daily Express reported.
Astronomers discovered the second monster black hole at the center of the galaxy Markarian 739, which is about 425 million light-years from Earth, toward the constellation Leo.
Launched into space in 1990, the eye in the sky snaps pictures of stars, galaxies, and planets thousands of light-years from Earth.
And that's why astronomers measures a star's brightness two ways: by its apparent magnitude (how bright a star looks when seen from Earth) and by its absolute magnitude (how bright a star would look if it were 33 light-years away from Earth).
M13 is 25,000 light-years from Earth, give or take 10%.
What's more, at just 1,500 light-years from Earth, Orion is the closest stellar maternity ward where massive stars have cleared the view.
You give astronomical distances beyond the solar system in light-years, but professional astronomy papers use parsecs.
5 to 10 billion light-years away, and as such, tend to be dimmer, ranging in magnitude from about 13 to 17.
The pillars of gas and dust in the Eagle Nebula are about 7,000 light-years away from our solar system, living the in constellation Serpens.
Early estimates placed the cluster at an average of about 434 light-years away; then along came the European Space Agency's Hipparcos satellite, which found a distance of roughly 398 light-years by taking high-precision measurements of stellar motion and position.
Astronomers recently found an additional 20 star systems that lie within just 33 light-years of Earth.