Apparent magnitude

Earthquakes in the state of California occur almost on a daily basis; these earthquakes are often not felt because of its low magnitude, but it is still recorded. However, Californians have experienced destructive earthquakes dating back to January 9, 1857 (Morrison). This earthquake occurred in Fort Tejon with a magnitude of 7.9 (Morrison). The damage, however, was not as devastating due to the minimal houses that were built in that area. In 1906, an earthquake so catastrophic…

Oklahoma County has not been really active. Before the earthquake swarm started in the Jones area, there was only 7 earthquakes per year in Oklahoma County. But, since the Jones swarm started, there are a few hundred earthquakes per year. And, since January 2009, eastern Oklahoma County has been shaking off and on. Most of the quakes are around Jones, Oklahoma. The Oklahoma Geological Survey was interested in the 10,000 percent increase in seismic activity. Austin Holland, a seismologist for the…

A large-scale earthquake registered at a magnitude of 7.0, occurred in Haiti on January 12, 2010, on the West Indian island of Hispaniola. The shock compromised the countries of Haiti and the Dominican Republic. It was estimated that more than a third of the population of the country was affected by the earthquake, along with many homes destroyed beyond repair (Pallardy). Similarly, in Nepal, nearly nine thousand people died from the two earthquakes in April and May 2015, and the remote villages…

In this week’s reflection assignment the required reading was over restoring rifle and shotgun barrels. The article explained the processes and procedures for lapping shotgun and rifle barrels.as well as altering shotgun barrels. And soldering, brazing, and welding In the required reading the author explained the differences between lapping the different lapping compounds. And explained the applications for the different compounds. The article also gave an overview of the tool involved in the…

In 1905, independent Danish astronomer Ejnar Hertzsprung and American astronomer Henry Norris Russell gathered data of a star’s spectral type and there temperature. They plotted these data on graphs and discovered that many patterns emerged linking the mass of a star to its lifespan. From the noted trends and correlations they formed what is now known as the Hertzsprung Russell Diagram or commonly referred to as the HR Diagram. The HR Diagram is used as an important tool in the study of…

SCORPIUS Scorpius, also known as Scorpio. Its name is Latin for Scorpion. It lies between Libra to the west and Sagittarius to the east. Scorpius is a large constellation in the southern hemisphere near the centre of the Milky Way. In Greek mythology, Scorpion was sent by Artemis, the goddess of hunting and her mother, Leto, to protect all the creatures since Orion said that he would kill all the creatures on the earth. After a battle, Scorpion killed Orion. Later, Zeus sent Scorpion into…

CYGNUS One of the most prominent constellations in the night sky, and one of the most involved and eventful regions of space, the Cygnus constellation and its surrounds are fascinating, and a worthwhile talking point for many a topic. Occupying an area of 804 square degrees, Cygnus is the 16th largest constellation in the night sky; it lies in the fourth quadrant of the northern hemisphere, with right ascension at 20.62, and declination at +42.03: in other words, if you were in the northern…

Antares is estimated to have surface temperatures of around 3000C (5400F), around half as hot as the sun. The absolute magnitude of this star is -5.28 making it the 16th brightest star in the entire sky. Antares’ position is RA:16h 29m 24s, dec: -26° 25′ 55″ and is 619.7 light years away Shaula Shaula is the second brightest star in the Scorpius constellation and it also known…

Cepheid Variable Stars are large and luminous yellow stars in space known to sporadically change size and temperature resulting in pulsing variations in brightness and thus, inconsistent levels of luminosity. There are two types of Cepheid Variable Stars; Type 1 Cepheids (or classical) which are high mass stars with smaller pulsating periods and Type 2 Cepheids which are lower mass stars with greater pulsation periods. All Cepheid Variable Stars, named after the first observed star of this type,…

means the distribution of the data in relation to the fitted line of regression. The diagrams are also all measured by using apparent magnitude which is the measure of brightness as viewed from the earth and does not take into consideration distance which can mean results are not as accurate in comparison to absolute magnitude. Absolute magnitude is measured the magnitude of the star if it was at a distance of 10 parsecs which gives it a baseline. However, the great benefit of using Hubble…