The Heliocentric Universe
... • Could predict positions of planets – BUT only as well as Ptolemy’s model ...
... • Could predict positions of planets – BUT only as well as Ptolemy’s model ...
Parallax
... distance directly. Instead, astronomers must be very clever and measure the distance indirectly. One of the ways they do this is by the method of Parallax. ...
... distance directly. Instead, astronomers must be very clever and measure the distance indirectly. One of the ways they do this is by the method of Parallax. ...
PHY216_lect1_2014 - Astrophysics Research Institute
... General rule - for an observer in the NORTH: • If a northern hemisphere star’s small circle does not intersect the observer’s horizon, the star never SETS and the star is said to be circum-polar • If a southern hemisphere star’s small circle does not intersect the observer’s horizon, the star never ...
... General rule - for an observer in the NORTH: • If a northern hemisphere star’s small circle does not intersect the observer’s horizon, the star never SETS and the star is said to be circum-polar • If a southern hemisphere star’s small circle does not intersect the observer’s horizon, the star never ...
29_Astronomical Navigation
... a line drawn through that point at right angles to the azimuth provides a position line. A similar sight taken at the same time of a second celestial body on a different bearing will provide a second position line and the observer's true position is at the point of intersection of these two position ...
... a line drawn through that point at right angles to the azimuth provides a position line. A similar sight taken at the same time of a second celestial body on a different bearing will provide a second position line and the observer's true position is at the point of intersection of these two position ...
Science 9 Unit 5: Space Name - Science 9
... Bigger telescopes enable astronomers to discover new bodies in space. Sir William Herschel built a huge reflecting telescope and discovered the planet Uranus with it in 1773. The largest refracting telescope was built at the Yerkes Observatory near the end of the nineteenth century. With it, Gerald ...
... Bigger telescopes enable astronomers to discover new bodies in space. Sir William Herschel built a huge reflecting telescope and discovered the planet Uranus with it in 1773. The largest refracting telescope was built at the Yerkes Observatory near the end of the nineteenth century. With it, Gerald ...
angular size - Particle and Astroparticle Physics
... • On modern star charts, the entire sky is divided into 88 regions • Each is a constellation • Most stars in a constellation are nowhere near one another • They only appear to be close together because they are in nearly the same direction as seen from Earth ...
... • On modern star charts, the entire sky is divided into 88 regions • Each is a constellation • Most stars in a constellation are nowhere near one another • They only appear to be close together because they are in nearly the same direction as seen from Earth ...
Parallax class activity (in MSword)
... How far away are the stars? Fun with Math! person 1: Measure out some distance X, and stand at point 1. This is like the distance to a star, which in real life we can’t measure with a tape measure!. (If there is time, we will do two distances, one quite short, say 10 feet, and one longer, say 50 fee ...
... How far away are the stars? Fun with Math! person 1: Measure out some distance X, and stand at point 1. This is like the distance to a star, which in real life we can’t measure with a tape measure!. (If there is time, we will do two distances, one quite short, say 10 feet, and one longer, say 50 fee ...
No Slide Title
... Difficulties with lenses and refraction • It is relatively easy to make a small refracting telescope. If f0/fe is large then we have good ang.magn.The sum of ( f0 + fe ) should equal the lens separation with a control to allow length variation to correct the focus. • However a large telescope of th ...
... Difficulties with lenses and refraction • It is relatively easy to make a small refracting telescope. If f0/fe is large then we have good ang.magn.The sum of ( f0 + fe ) should equal the lens separation with a control to allow length variation to correct the focus. • However a large telescope of th ...
relax it`s only parallax!
... With current technology, parallax can only be used to measure distances out to about 500 parsecs, which is about 1.5 × 1016 kilometers. This might seem like a great distance, but it is only about 7% of the way to the center of our Milky Way galaxy. ...
... With current technology, parallax can only be used to measure distances out to about 500 parsecs, which is about 1.5 × 1016 kilometers. This might seem like a great distance, but it is only about 7% of the way to the center of our Milky Way galaxy. ...
