When looking through the eyepiece of a telescope, a variety of field of view can be seen. The field of view is the area that can be seen through the eyepiece and is measured in angular diameter. Different factors cause the variations in the field of view such as the magnification, field stop of the […]
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essay writer website Photo by: ESO Creative Commons What do Christian Doppler and Albert Einstein have in common? Simple, they are both instrumental in weather forecasting through their contributions to the information people know about radial velocity. Without understanding how radial velocity works, warnings about tornadoes and hurricanes are not possible.
Orbital period is defined as the amount of time an object travels around another object. This is in respect to the sidereal period, which is the time required for a celestial body to orbit. In the succeeding paragraph, you will find the varying orbital periods and their respective explanations.
Outgassing is a process wherein gas is released through sublimation, evaporation and phase conversion. It is also simply described to as releasing solid gas. Offgassing, is similar to outgassing only that the latter refers to indoor air quality.
Pulsar is a contraction of two words, pulse and star (much like how quasar, meaning quasi-stellar object, was derived). By general definition, a pulsar is a small dense star (believed to be a neutron star) that emits mostly brief but intense bursts of electromagnetic radiation. The beam of radio wave produced is visible when pointed
The word intergalactic in astronomy may mean different things. It can be associated to travel, mediums, or space itself. From the word itself, the prefix ?inter-? means in between or across, and ?galactic? means galaxy. Basically, the term means between galaxies, and it may be an interaction or other activity when two galaxies meet and
An exobiologist specializes in the field of exobiology. An exobiologist is also known as an astrobiologist or xenobiologist. Exobiology is the study of discovering whether life exists outside of earth in the universe. David Grinspoon defined it as a field of natural philosophy and grounding speculation on the unknown.
Photo by: Tamasflex Creative Commons If you recently have had a conversation with an astronomer, then you’ve probably heard them mention the exit pupil as a certain eye piece in telescopes or binoculars. But what does exit pupil really mean, and how can it affect views when looking through a telescope?
Ever wonder why this colorless, odorless, tasteless non-toxic gas is named strong>Helium? The name Helium comes from a Greek word Helios meaning sun. It was in the Sun that this element was first discovered. In 1868 a French Scientist, Jules Janssen was observing a total solar eclipse. He noticed a bright yellow spectrum and thought
Interstellar Medium is matter that makes up the space between stars and star systems in a galaxy. Most people think space is a complete vacuum, making resources or matter completely absent or none at all. This is a common misconception, since space and the star systems really have matter.
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