One of the most important features or power of a telescope is its capability of showing us the smallest details along with clear, sharp images of the object that we are viewing. This is what’s referred to as its resolving power. There are certain celestial objects that are too close together that they tend to […]
Redshift is an important concept in astronomy that is used to describe the distance of a far away object. As a term in physics, redshift refers to the change in the frequency of a photon from higher to lower energy and accordingly from shorter to longer wavelength. In simple terms though this just means that
The biggest stars in the universe are called red supergiants. To get a picture of how huge these stars are, just imagine being able to fit 1800 suns into one red supergiant or imagine the sun growing so much that it already reaches the orbit of Saturn. But their superiority in size does not mean
When you look at stars in the night sky, it appears like they are just tiny dots of light that look the same. However, they are millions of lights years away, stars look very different from how they appear at night. They are in fact classified into several types according to their size, temperature, and
A radiometer is a device used for measuring different types of electromagnetic radiation or energy that exhibit wave-like properties. All objects that have a temperature beyond absolute zero are able to radiate this type of energy into the space surrounding them. This is also true for objects found in space such as stars and even
A groundbreaking development in the field of science occurred in the early parts of the 20th century when Albert Einstein introduced the theory of relativity to a world that mostly thought that everything in the universe – space and time – are fixed into place.
A regolith is a collective term referring to the blanket of powdery materials that cover the surface of several celestial bodies such as the earth, moon, and asteroids among many others. This blanket has a powdery appearance and texture because it is composed of fine debris such as soil, shattered rock, dust, and other small
A refracting telescope is one of the earliest tools used by astronomers from way back to study outer space and distant objects. It is one of the two kinds of optical telescopes and uses a lens as the light gathering part or the objective as opposed to a mirror that is commonly used as the
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Polarization refers to that property of electromagnetic waves (like light and gravity) that characterizes the orientation of their movement to and from space. Electromagnetic waves possess a vector or three-dimensional nature which results in polarization. In astronomy, great importance is placed on studying polarized electromagnetic radiations from outer space.
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The concept of proper motion is related to the field of astronomy. This is the concept or principle regarding the movement of the planets or celestial bodies. The principle states that a certain celestial body, whether it is a planet or sun, changes its angular position over time, in reference to the mass center of
