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An Ion is a part of an element, which carries a positive or negative charge as a result of losing or gaining electron particles. At least this is how it is defined in Chemistry. This also applies to astronomy. Take for example, gases. They are often in ionized form. Since gases take up this kind […]
Astronomical transit is the passage of a small astronomical body across the disk or face of a significantly larger body as opposed to an eclipse where significant occultation occurs. Note that the word refers to events where the nearer and smaller object actually appears significantly smaller instead of completely hiding the other.
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There are many theories that relate between physics and astronomy. One theory refers to the “physical theory of measurement” and thus explains the speed of light, the movement of different bodies and objects, and also of uniform motion. This is none other than the theory of Special Relativity.
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A yellow dwarf is a star and is often referred to as a G-type main sequence star. A perfect example of a yellow dwarf would be the sun. A yellow dwarf has a mass almost like the mass of the sun. Its color ranges from white to a lighter yellow. Among the stars in the
To use telescopes, they must be supported by a special kind of stand, or mount. Like a tripod for video cameras. Otherwise, you would have to hold it all the time. They help the viewer to keep the telescope steady, point it and adjust it at the celestial bodies every time they change positions and
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We view celestial objects from a distance and use their brightness to make observations. Amateur astronomers and scientists often make use of a celestial object’s limiting magnitude, which is a measure of the lowest or faintest apparent magnitude that can be seen using a particular instrument. In simple terms, limiting magnitude is often considered as
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In science, especially astronomy, all types of equipment abound. One of which is the siderostat. Unknown to many, various apparatus may have a different names, but the less known words are the generalized of the more formal term for these scientific or astronomical equipment. A siderostat is defined as the formal or the general term
The sun emits different forms of energy in the form of electromagnetic waves. One form is the ultraviolet light which has a shorter wavelength of between 10 to 400 nm than visible light (greater than 400 nm) and a longer wavelength than x-rays (less than 10 nm). Because of its shorter wavelength, ultraviolet light contains
Colors will always be a part of science. It helps identify waves and different lines, especially in astronomy. Speaking of which, one line that uses colors or spectrum is called the Spectral Line. The spectral line is defined as the dark of a bright line in the case of a constant or continuous spectrum. It
In astronomy, physics is an independent field, but it keeps its close relations to the field of space. One term that is widely used in astronomy and also is related to physics is none other than the term called spacetime. The term spacetime is defined as the model where time and space combines as one
