Sagitta, A Constellation Essay

704 words - 3 pages

Sagitta, which means “the arrow” in Latin, is a constellation that can be found from all places on Earth, excluding the Antarctic Circle, at approximately +90° and -70°. It is located in the fourth quadrant of the northern hemisphere, inside the Milky Way, and can best be seen in the months of August and September at approximately 9:00 PM. Sagitta was first discovered by the renowned Greek astronomer, Ptolemy, in the second century. It is considered “ancient,” for it is one of the oldest recognized constellations. Being the third smallest of the 88 known constellations, Sagitta has no stars brighter than fourth magnitude, however this constellation is composed of the Gamma Sagittae, Delta Sagittae, Alpha Sagittae, Beta Sagittae, 15 Sagittae, Sham-Alpha Sagittae, Zeta Sagittae, Eta Sagittae, Epsilon Sagittae, HD 231701 (the only known star with a planetary system in Sagitta and is 354 light years away), Theta Sagittae, S Sagittae, U Sagittae, and QZ Sagittae. Sagitta is extremely small, occupying an area of only 80 square degrees, however is bordered by Vulpecula, Delphinus, Hercules, and Aquila. It belongs to the Hercules family of constellations, and contains one Messier object - globular star cluster M71, which can easily be located between the Gamma and Delta Sagittae. This globular cluster is 13,000 light years away from Earth, which is considerably close when compared to others. An interesting fact about Sagitta’s abbreviation is that Sagitta (Sge) and Hydra (Hyi) are the only two constellations where its abbreviation contains a letter that is not included in its name.
The Gamma Sagittae, which is 4000° K and has a magnitude of 3.51, is the brightest star in Sagitta, and creates the “tip of the arrow” that the constellation forms. Though 275 light years away, it is completely visible to us on Earth, for it is currently in the red giant phase and is 640 times the sun’s luminosity. The Gamma Sagittae has a radius that it 55 times that of the sun and a mass 2.5 times that of the...

Find Another Essay On Sagitta, a Constellation

Psychological Egoism Theory Essay

2240 words - 9 pages The theory of psychological egoism is indeed plausible. The meaning of plausible in the context of this paper refers to the validity or the conceivability of the theory in question, to explain the nature and motivation of human behavior (Hinman, 2007). Human actions are motivated by the satisfaction obtained after completing a task that they are involved in. For example, Mother Teresa was satisfied by her benevolent actions and

How Celtic Folkore has Influenced My Family

1587 words - 6 pages Every family has a unique background that influences the way they live and interact with other people. My parents, who emigrated from Ireland to the States with my three brothers in 1989, brought over their own Celtic folklore and traditions that have helped shaped the way our family operates and lives. One aspect of folklore that has helped shape my family dynamic is the Celtic cross—both its background and what role it has played in our lives

Julia Margaret Cameron

1406 words - 6 pages At a time when women were looked upon as being homemakers, wives, mothers and such the late 1850's presented a change in pace for one woman in specific. Photography was discovered in 1826 and soon after the phenomenon of photography was being experimented with and in turn brought new and different ways of photo taking not only as documenting real time, but also conceptualizing a scene in which an image would be taken. Julia Margaret Cameron will

Evaluation of School Improvement

1403 words - 6 pages (Nolan, 2008). Dr. Hunter was certain the school represented a learning environment, which accepts and respects the attributes of all races, cultures, ethnicity, socioeconomic, genders, and students with disabilities. Dr. Hunter (personal communication, November 4, 2011), as principal and the administrative staff stated it is essential to the success of this organization and community to develop communication. It is important for the

Case Study: The Benefits of Animal Testing

1757 words - 7 pages Nine year old Amy has already had a rough start in life. She was born with an abnormal heart that hinders her everyday activities. Amy is unable to keep up with kids her own age because she often tires out easily. As a consequence, she has very little friends and is often alone. Amy is forced to take different medications everyday just to survive. Amy’s life consists of medicine, doctors, and constant hospital visits. However, Amy is due for a

Myth and Magic: Realism in "One Hundred Years of Solitude"

1531 words - 6 pages the seventh grade or even listening to the many stories your grandmother use to tell could be a heartbreaking or breathtaking experience. Most people, depending on the situation, dance around these moments just like Gabriel Garcia Marquez did in One Hundred Years of Solitude. The discovery of storytelling was an awe-inspiring experience – one that the many readers of his books would proudly contest. One Hundred Years of Solitude is an

Adiponectin: a Novel Indicator of Malnutrition and Inflammation in Hemodialysis Patients

2384 words - 10 pages differences were found between these two groups. Furthermore, weak but statistically significant positive correlations were found between the serum levels of adiponectin and and SGA(r = 0.29 p= 0.008) and MIS(r = 0.28 p = 0.01); a statistically significant negative correlation with moderate strength was also found between serum levels of adiponectin and TG (r = -0.36 p= 0.001). Conclusion The results of our study point to potential utility of

The Congo Free State: A Legacy of Apathy, Exploitation and Brutality

2298 words - 9 pages Between 1885 and 1908, Belgium’s Leopold II ruled Congo, a region in central Africa, as his personal colony, exploiting the resources and inhabitants for his own gain. Leopold allowed and encouraged Europeans and other Westerners to enter Congo and set up companies whose primary purpose was to gather rubber, which was abundant but difficult to get to in the Congo, using the Congolese as the laborers for the Europeans. Rubber gathering in Congo

Selective Exposition in The Lottery, by Shirley Jackson

1073 words - 4 pages Usually when someone hears the word “lottery” the first thing that comes to mind is a large sum of cash that people compete against highly impractical odds to win. Shirley Jackson’s story The Lottery might imply a similar conception based on the title alone, but the story is filled with unknowns never revealing exactly when and where the story takes place, or why the lottery exists; even what the lottery is isn’t revealed until the very end. Yet

Lightning

1857 words - 7 pages INTRODUCTION I remember when I was a young child; I would always be scared whenever there was a severe storm outside that included thunder and lightning. This was especially true in the hours of darkness, when you could really see the lightning. As I grew older this so-called fear of lightning turned into a fascination for this weather phenomena. One of my most vivid memories of lightning as a young man was when I was flying to Florida, the

Maryland's Ecology and Environment

1130 words - 5 pages Maryland is the 42nd largest state, making it one of the smaller states in America. It is located in the South Atlantic region on the United States eastern seaboard. Prince George's is one of twenty four counties in Maryland. It is also the geographic center of the state. Maryland has a varied climate. The state is home to a variety of different ecosystems. This is also true of Maryland’s environment, which has the Atlantic Ocean

Similar Essays

When The Bubble Burst Essay

1539 words - 6 pages By the time I arrived state side from my second tour in the Middle East the housing bubble had already burst. I noticed a drastic change in the way that many of my friends and family were living. Several of my friends that worked in real estate had sold their boats and seconds houses. My own stock portfolio had lost a third of its value. My sister and her husband had defaulted on their home mortgage leaving them scrambling for a place to live. I

Phase Diagram Essay

4456 words - 18 pages Introduction: Chemical equilibrium is a crucial topic in Chemistry. To represent and model equilibrium, the thermodynamic concept of Free energy is usually used. For a multi-component system the Gibbs free energy is a function of Pressure, Temperature and quantity (mass, moles) of each component. If one of these parameters is changed, a state change to a more energetically favorable state will occur. This state has the lowest free energy

Revolutionary Work Of Art Essay

1890 words - 8 pages Walter Benjamin emphasizes in his essay, “The Work of Art in the Age of its Technological Reproducibility” that technology used to make an artwork has changed the way it was received, and its “aura”. Aura represents the originality and authenticity of a work of art that has not been reproduced. The Sistine Chapel in the Vatican is an example of a work that has been and truly a beacon of art. It has brought a benefit and enlightenment to the art

Enlightenment Thought In New Zealand Schools

1594 words - 6 pages . (Kramnick, 1995). The enlightenment movement continued evolving over the following centuries. The main aim of the enlightenment was to make the world more focused on the individual rather than the authority of one person. The individual was not longer under the control of a government that had been given authority from God. Kant (1995) described it as a “man’s release from his self-incurred tutelage.” (p.1). This is talking about the individuals