Information: - HD 190647 b is > 1.9 MJ planet orbiting the star HD 190647 at 309.7 gigameters or 10.04 pc away from the star , taking 89.69 megaseconds to orbit the star with average velocity of 21.8 km / s. The orbital eccentricity is 18 % . Dominique Naef discovered this planet in early 2007 by using HARPS spectrograph located in Chile . - Vega, also designated Alpha Lyrae ( Lyrae, abbreviated Alpha Lyr, Lyr), is the brightest star in the constellation of Lyra, the fifth-brightest star in the night sky and the second-brightest star in the northern celestial hemisphere, after Arcturus. It is relatively close at only 25 light-years from the Sun, and, together with Arcturus and Sirius, one of the most luminous stars in the Sun's neighborhood. - HD 190647 is a yellow subgiant star located approximately 177 light years away in the constellation of Sagittarius. The apparent magnitude is 8 and absolute magnitude is 4. It is also called HIP 99115. In 2007, a planet was found to be orbiting the star. - A spectrograph is an instrument that separates light into a frequency spectrum and records the signal using a camera. There are several kinds of machines referred to as "spectrographs", depending on the precise nature of the waves. The term was first used in July, 1876 by Dr. Henry Draper when he invented the earliest version of this device, and which he used to take several photographs of the spectrum of Vega. This earliest version of the spectrograph was cumbersome to use and difficult to manage. - A star is a luminous sphere of plasma held together by its own gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked eye from Earth during the night, appearing as a multitude of fixed luminous points in the sky due to their immense distance from Earth. Historically, the most prominent stars were grouped into constellations and asterisms, the brightest of which gained proper names. Astronomers have assembled star catalogues that identify the known stars and provide standardized stellar designations. However, most of the stars in the Universe, including all stars outside our galaxy, the Milky Way, are invisible to the naked eye from Earth. Indeed, most are invisible from Earth even through the most powerful telescopes. - A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. The word galaxy is derived from the Greek "", literally "milky", a reference to the Milky Way. Galaxies range in size from dwarfs with just a few billion stars to giants with one hundred trillion stars, each orbiting its galaxy's center of mass. Galaxies are categorized according to their visual morphology as elliptical, spiral and irregular. Many galaxies are thought to have black holes at their active centers. The Milky Way's central black hole, known as Sagittarius A*, has a mass four million times greater than the Sun. As of March 2016, GN-z11 is the oldest and most distant observed galaxy with a comoving distance of 32 billion light-years from Earth, and observed as it existed just 400 million years after the Big Bang. After reading the paragraphs above, we are interested in knowing the entity with which 'hd 190647 b' exhibits the relationship of 'constellation'. Find the answer from the choices below. Choices: - lyra - sagittarius
sagittarius

Information: - The Byzantine Empire, also referred to as the Eastern Roman Empire, was the continuation of the Roman Empire in the East during Late Antiquity and the Middle Ages, when its capital city was Constantinople (modern-day Istanbul, which had been founded as Byzantium). It survived the fragmentation and fall of the Western Roman Empire in the 5th century AD and continued to exist for an additional thousand years until it fell to the Ottoman Turks in 1453. During most of its existence, the empire was the most powerful economic, cultural, and military force in Europe. Both "Byzantine Empire" and "Eastern Roman Empire" are historiographical terms created after the end of the realm; its citizens continued to refer to their empire as the "Roman Empire" (tr. ), or "Romania", and to themselves as "Romans". - In historiography, the Western Roman Empire consists of the western provinces of the Roman Empire at any one time during which they were administered by a separate independent Imperial court, coequal with (or only nominally subordinate to) that administering the eastern half. Both "Western Roman Empire" and "Eastern Roman Empire" (or "Byzantine Empire") are modern terms describing "de facto" independent entities; however, at no point did Romans consider the Empire split into two, but rather considered it a single state governed by two separate Imperial courts out of administrative expediency. The view that the Empire was impossible to govern by one emperor was established by Diocletian following the disastrous civil wars and disintegration of the Crisis of the 3rd century, and was instituted in Roman law by his introduction of the Tetrarchy in AD 285, a form of government which was legally to endure in one form or another for centuries. The Western Court was periodically abolished and recreated for the next two centuries until final abolition by the Emperor Zeno in 480, by which time there was little effective central control left in the area legally administered by the Western Court. - Diocletian, born Diocles (244312), was a Roman emperor from 284 to 305. Born to a family of low status in the Roman province of Dalmatia, Diocletian rose through the ranks of the military to become cavalry commander to the Emperor Carus. After the deaths of Carus and his son Numerian on campaign in Persia, Diocletian was proclaimed emperor. The title was also claimed by Carus' other surviving son, Carinus, but Diocletian defeated him in the Battle of the Margus. Diocletian's reign stabilized the empire and marks the end of the Crisis of the Third Century. He appointed fellow officer Maximian as Augustus, co-emperor, in 286. - Historiography is the study of the methodology of historians in developing history as an academic discipline, and by extension is any body of historical work on a particular subject. The historiography of a specific topic covers how historians have studied that topic using particular sources, techniques, and theoretical approaches. Scholars discuss historiography by topic such as the "Historiography of the United Kingdom", the "Historiography of Canada", "Historiography of the British Empire", the "historiography of early Islam", the "historiography of China" and different approaches and genres, such as political history and social history. Beginning in the nineteenth century, with the ascent of academic history, there developed a body of historiographic literature. The extent to which historians are influenced by their own groups and loyalties such as to their nation state is a debated question. - Orestes ( died 28 August AD 476 ) was a Roman general and politician of Pannonian ancestry , who was briefly in control of the remnant Western Roman Empire in 475 and 476 . - The term tetrarchy (from the , "tetrarchia", "leadership of four [people]") describes any form of government where power is divided among four individuals, but in modern usage usually refers to the system instituted by Roman Emperor Diocletian in 293, marking the end of the Crisis of the Third Century and the recovery of the Roman Empire. This tetrarchy lasted until c.313, when internecine conflict eliminated most of the claimants to power, leaving Constantine in control of the western half of the empire, and Licinius in control of the eastern half. After reading the paragraphs above, we are interested in knowing the entity with which 'orestes ' exhibits the relationship of 'occupation'. Find the answer from the choices below. Choices: - academic - canada - emperor - military - officer
officer