Nebulae: The Sagittarius Triplet

The first thing you might be wondering is, what exactly is a nebula? Well according to Franknoi, a nebula is “A cloud of interstellar gas and dust that can be seen to glow with visible light or invisible light” (Franknoi 532). The Carina Nebula was formed approximately 3 million years ago in the Southern region of the Milky Way in the Carina constellation. It is located roughly 7,500 light years away from earth, which is relatively close in special terms, and even bright enough to be seen from south of the earth’s equator. It was discovered by French astronomer, Nicolas Louis de Lacaille, in 1751 from the Cape of Good Hope in

Curtis correctly noted that spectral lines could be seen within the spiral nebulae, and that they were generally consistent with the nebulae in the form of large assembled star clusters. These clusters supported Curtis's argument that these were in fact stellar systems, which are comparable to our Milky Way

- They are both made up of the same matter. There is three different types of bright nebulae emission, reflection, and planetary nebulae. And dark nebulae’s are known as “holes in the heavens”.

This nebula is about 1/3 of a light-year thick, and five light-years across. Most nebulae are shaped are more sphere shaped and most commonly a butterfly shape. Abella 39 is one extremely rare cases in which the geometry is much simpler. This star, unlike its usual common shape is in the form of a cat eye. This star is off center in the constellation about one tenth of a light-year.

Parenago 1802, a member of the ∼1 Myr Orion Nebula Cluster, is a double-lined, detached eclipsing binary in a 4.674 d orbit, with equal-mass components (M2/M1=0.985±0.029). Here we present extensive V IC JHKS light curves spanning ∼15 yr, as well as a Keck/HIRES optical spectrum. The light curves evince a third light source that is variable with a period of 0.73 d, and is also manifested in the high-resolution spectrum, strongly indicating the presence of a third star in the system, probably a rapidly rotating classical T Tauri star. We incorporate this third light into our radial velocity and light curve modeling of the eclipsing pair, measuring accurate masses (M1=0.391±0.032, M2=0.385±0.032 M⊙), radii (R1=1.73±0.02, R2=1.62±0.02 R⊙), and temperature ratio (Teff,1/Teff,2=1.0924±0.0017). Thus the radii of the eclipsing stars differ by 6.9±0.8%, the temperatures differ by 9.2±0.2%, and consequently the luminosities differ by 62±3%, despite having masses equal to within 3%. This could be indicative of an age difference of ∼ 3 × 105 yr between the two eclipsing stars, perhaps a vestige of the binary formation history. We find that the eclipsing pair is in an orbit that has not yet fully circularized,

It is one of the most prominent and recognizable constellations in the night sky during its most distinguishable seasons, which is during the winter in the Northern Hemisphere, and the summer in the Southern Hemisphere (Orion). Orion’s belt is made up of the stars Alnilam, Mintaka and Alnitak, which are all the brightest stars of Orion. One leg is made up of the star Rigel. The second brightest star Betelgeuse, serves as the right shoulder, while Bellatrix establishes the left shoulder. The Orion's Nebula, which is a formation of dust and other gases, creates his sword which hangs from his belt. Orion is composed of many other nebulas and stars that create the beautiful display of Orion (Orion). There are many different stories of how the constellation was formed. One story tells of the love between Orion and Artemis. One day while Orion was swimming, Apollo dared Artemis that she couldn’t hit the distant object in the sea, which was really Orion. Artemis, not realizing it was her lover, shot Orion with an arrow. When she later realized her appalling fault, she honored Orion by placing him in the sky (Orion). In another story the hunter boasted that no animal could kill him. In response to this, Hera sent a scorpion to sting Orion. He smashed the scorpion with his club, but not before he was stung. The two are on opposite sides of the sky and cannot be seen at

Discoveries of what were termed “nebulae” began in the early 17th century. The first of these discoveries was the Orion Nebula, which looked like a normal star to the naked eye. French scholar Peiresc discovered it in 1610 using one of the first telescopes to be made. Later, in 1656, Christiaan Huygens observed the interior of the Orion Nebula and determined that it consisted of a compact quadruple star system instead of a singular star. During the 18th and 19th century, nebulas were discovered even though astronomers were mainly scanning the sky for comets. Some major astronomers who contributed greatly to the discovery of nebulas, among other things, during the 18th and 19th century were Messier and the Herschel family. Though the instrumentation available to astronomers during the 18th and 19th century were highly advanced compared to earlier times, they weren’t advanced enough to detect the motion of extragalactic objects or their composition. This lack of precision instrumentation, and thus the dissociation from motion of stars/star-clusters/nebulae, were the main reasons astronomers during this

Majestic barred spirals galaxies that show a distinctive bar-shaped structure of stars and gas that slice across their nuclei.

cal galaxies (e.g. Naab and Burkert, 2003; Bournaud et al., 2005). These are not disk galax-

The Orion Nebula contains one of the brightest star clusters in the night sky. With a magnitude of 4, this nebula is easily visible from the Northern Hemisphere during the winter months. It is surprising, therefore, that this region was not documented until 1610 by a French lawyer named Nicholas-Claude Fabri de Peiresc. On March 4, 1769, Charles Messier inducted the Orion Nebula, M42, into his list of stellar objects. Then, in 1771, Messier released his list of objects for its first publication in Memoires de l'Academie.1

Original creation of the earth nebular hypothesis vs. six-day creation is the topic chosen for this article. The purpose of this paper is to discuss the difference between nebular hypothesis and the six day creation. The comparison is between old-earth and young-earth viewpoints on the original creation. Both views come from believers who are merely seeking truth and trying to understand God’s message.

The Carina Nebula is located in the Milky Way Galaxy in the constellation Carina in the Carina-Sagittarius Arm. It is sometimes referred to as the Eta Argus, referencing the former constellation, Argo Navis, which represented Jason and the Argonauts. It has been estimated at around 7500 ly (light-years) from earth. It was discovered in 1751-52 by Nicolas Louis de Lacaille and was later found to be one of the largest emission stars in the galaxy. Its entire mass is around 900,000 solar masses which is equivalent to 270 million pounds. It contains several open clusters of stars along with many O-type stars. It used to contain thousands of more stars than it does today, but many self-destructed. It is home to the Trumpler 14 and Trumpler 16

As a comet hunter Charles Messier came across what are known now to be galaxies, nebulae, planetary nebulae and star clusters. With help from his assistant Pierre Méchain, Messier composed a list of them. Messier done this to make it easier to differentiate between the comets they were looking for and other objects. The list is made up of the objects that they could see from the north celestial pole to a celestial latitude

An accurate description of atomic processes governing the origin of elements in the astronomical objects is essential to understand the cosmic evolution of the universe. This project is one of the endeavors to accomplish this goal. Also, the knowledge of the atomic structure of heavy elements such as Krypton, Xenon, and Molybdenum is necessary to understand their interaction with the plasma in power generation reactors. New S2+ DR results may remove the anomalous behavior noticed by plasma modelers in its elemental abundance observed in the Orion Nebulae. Most importantly, this work will make my contribution as a woman in this male-dominating field and will inspire other women and me to take advantage of every opportunity come across to give

A galaxy, also called a nebula, consists of billions of stars, interstellar gas, dust, and dark matter which are all bound to form a massive cloud in which we live in. Although it cannot be very well explained, dark matter makes up at least 90% of a galaxy’s mass.