Sentences with phrase «arc minutes»

"Arc minutes" is a term used in astronomy and geography to measure small angles. It represents a division of a degree into smaller parts, similar to how an hour is divided into minutes. So, an arc minute is a small unit to measure the angular distance on a circle or the Earth's surface. Full definition
6 - inch or larger telescopes will show many more stars tightly packed within an area 13 arc minutes in apparent size.
«The angular resolution of the eye is 0.6 arc minutes per pixel,» he wrote in an e-mail to tech publications in 2010.
NGC 6638 is a class VI globular cluster occupying an area of 2 arc minutes about half a degree to the east of Lambda Sagittarii.
It produced an extended ultraviolet survey with arc minute source positions in this wavelength region, making it the first instrument with such capability.
On about the western edge of M24, 12th - magnitude planetary nebula NGC 6567, of about 8 arc minutes diameter, can be found, a foreground object at a distance of about 4,000 light - years.
M108 appears in the same wide field of view with the Owl Nebula (M97), which is located only 48 arc minutes southeast of the galaxy.
Every 19 months, just before and after Venus's closest approach to Earth, it pops out of the blinding glare of the sun to become a large, hair - thin crescent, not quite one arc minute in width.
There's but one fact on the Hubble Telescope's optics which must be kept in mind: The Hubble telescope has a very long focal length of 190 feet (58 m), and thus a one degree field measures one full meter in the space telescope's focal plane, and one arc minute about 1.7 cm.
And if you can split Epsilon, you've resolved 3.5 arc minutes — about one - eighth the diameter of the moon.
At a distance of 2,150 light years, the apparent diameter of this 6 - 7th mag object, 27 arc minutes, corresponds to about 15 light years (Kenneth Glyn Jones» figure of 35» would correspond to about 20 light years).
This planetary nebula is certainly the most impressive object of its kind in the sky, as the angular diameter of the luminous body is nearly 6 arc minutes, with a faint halo extensing out to over 15», half the apparent diameter of the Moon (Millikan 1974).
During each orbit, IRAS scanned a strip of sky 30 arc minutes wide, and successive strips overlapped by 15 arc minutes to ensure that nothing was missed.
One solar radius is about 700,000 km, 420,000 miles or 16 arc minutes.
However, the cluster has a large tidal radius, a region beyond which member stars can not escape, which spans 18.34 arc minutes, or 139 light years in linear diameter.
It occupies an area 8.8 arc minutes in size.
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