angular radiusの例文

• The angular radius of the Airy disk ( measured from the center to the first null ) is given by:
• The Einstein radius, also called the Einstein angle, is the angular radius of the Einstein ring in the event of perfect alignment.
• Therefore, the angular radius of the polar circle is equal to the angle between the plane of Earth's equator and that of the ecliptic.
• If this caustic-crossing time t _ S can be measured, and if the angular radius of the source is known, then again the Einstein angle can be determined.
• The stellar population in the nucleus, and a ring at an angular radius of 63, shows an age of only one billion years and is generally younger than the surrounding stellar population.
• Over this cycle, Earth's north axial pole moves from where it is now, within 1?of Polaris, in a circle around the ecliptic pole, with an angular radius of about 23.5?
• As long as there are enough water drops around and you have the sun in your back, you should see a rainbow as an arc, centred around the point where the shadow of your head is and with an angular radius of about 42?
• If the angular separation of the two points is significantly less than the Airy disk angular radius, then the two points cannot be resolved in the image, but if their angular separation is much greater than this, distinct images of the two points are formed and they can therefore be resolved.
• Subsequently Ren?Descartes ( 1596 1650 ) showed, by using geometric construction and the law of refraction ( also known as Descartes'law ), that the angular radius of a rainbow is 42?( i . e . the angle subtended at the eye by the edge of the rainbow and the rainbow's centre is 42?).
• The rotation axis of the Earth describes, over a period of 25, 700 years, a small circle ( blue ) among the stars, centered on the ecliptic north pole ( the blue " E " ) and with an angular radius of about 23.4? an angle known as the obliquity of the ecliptic.
• He showed by using geometric construction and the law of refraction ( also known as Descartes'law or more commonly Snell's law ) that the angular radius of a rainbow is 42 degrees ( i . e ., the angle subtended at the eye by the edge of the rainbow and the ray passing from the sun through the rainbow's centre is 42?).