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1. Show how to measure distances on a map using an orienteering compass. (Web site)

Andromeda Galaxy

1. At least four distinct techniques have been used to measure distances to the Andromeda Galaxy.

Galaxy Clusters

1. Megalight-years are typically used to measure distances between neighboring galaxies and galaxy clusters.

Angles

1. Riemannian manifolds To measure distances and angles on manifolds, the manifold must be Riemannian. (Web site)
2. Hipparchus, (the ancient Greek), invented latitudes and longitudes and was the first to measure distances in terms of angles.

Galaxies

1. The large-scale structure of the Universe also looks different if one only uses redshift to measure distances to galaxies.

Metric Space

1. Using the absolute value to measure distances, the irrational numbers become a metric space which is not complete. (Web site)

Astronomers

1. Astronomers use the principle of parallax to measure distances to objects (typically stars) beyond the Solar System. (Web site)
2. Astronomers have long used eclipsing binaries in the Milky Way to measure distances. (Web site)

Several Variations

1. There are several variations on this, many of which are used to measure distances to stars in other galaxies. (Web site)

Accurate Way

1. This is where the greatest error was introduced since the ancient Greeks had no accurate way to measure distances. (Web site)

Work Right

1. But it's not so easy to get them to work right since they measure distances in terms of wavelengths of light, and that's *real* sensitive.

Cepheids

1. Cepheids are accurate distance markers for nearby galaxies, but astronomers need secondary methods to measure distances to faraway galaxies.
2. Once the absolute distance to a few Cepheids was determined, these stars were used to measure distances beyond the Milky Way. (Web site)

Standard Candles

1. RR Lyrae stars can be used as standard candles to measure distances out to about 760,000 parsecs (about 2.5 million light years). (Web site)

Measure Distances

1. Astronomers typically use kiloparsecs to measure distances between parts of a galaxy, or within groups of galaxies. (Web site)
2. Type Ia are called "standard candles" and are used by astronomers to measure distances in the universe, because each Type Ia shines with a known luminosity. (Web site)

Categories

1. Standard Candles
2. Cepheids
3. Work Right
4. Accurate Way
5. Galaxy Clusters
6. Books about "Measure Distances" in Amazon.com
   

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