[showauto]
The Milky Way is not the only galaxy existing in the vast universe. In recent years, more galaxies have been discovered. Our Solar System can be found on the Milky Way galaxy. The Milky Way galaxy is part of a group of about 30 to 35 galaxies in one neighbourhood and are collectively called as […]
Merriam-Webster dictionary defines gibbous as marked by convexity or swelling, seen with more than half but not the entire apparent disk illuminated or having a hump. It also means characterized by being protuberant. When used on celestial bodies, it is when more than half but less than full of the surface is illuminated.
When there is an enormous explosion in galaxies, there could be some flashes of gamma rays released. These flashes are called the gamma ray burst. In the universe, it is the most luminous event happening. The shortest periods a burst can last milliseconds. It can last up to several minutes as well. But the typical
Charles Wolf and Georges Rayet discovered three stars with emission bands in 1867 using a 40cm Foucault telescope at the Paris Observatory. Stars absorb energy at different frequencies but stars that emit gas that include a sequence of helium and nitrogen or another sequence of helium, oxygen and carbon, were something unusual. These stars were
Trapezium Cluster, also known as the Orion Trapezium cluster is a tight group of stars in the constellation of Orion and the center of the Orion Nebula. Galileo is credited with its discovery when he sketched the stars in 1617 although he did not notice the nebulosity.
Photo by: Beland Creative Commons Voids are those huge dimensions or sizes of space that have galaxies and groups of galaxies within its area or scope. A galaxy has plenty of stars, planetary bits and pieces, gas, dust and dark matter. Galaxies have millions or even billions of stars. The Sun is a part of
In astronomy, focal length is primarily used when referring to telescopes. It is the distance light travels starting from the lens of a telescope down to the point where it is focused. While in optics, focal length is simply defined as the strength by which an optical system (like a telescope) converges (focuses) or diverges
Photo by: Zedh Creative Commons The small field found at the wide range of frequencies of electromagnetic radiation is called visible light. It can be discerned by the naked eye and has wavelengths measured to be from 780 nanometers to 390 nanometers. Each wavelength has a particular color and when that specific wavelength hits one’s
Gamma ray is a electromagnetic radiation with a very short wavelength. It means, it is of high frequency. Gamma radiation is produced by interactions of sub atomic particles like fusion, fission, radioactive decay and electron-positron annihilation. Gamma rays can create great damage to living tissues since it is a type of ionizing radiation. You should
Solar flares are large explosions produced by the Sun emitting x-rays and UV radiation and disrupting long-range radio communications in the process. The correlation of solar flare to the appearance of more sunspots is not clear but scientists have observed that there are more flares when the Sun has more sunspots. A first quarter flare
First Quarter Flare Read More »
