The project I am interested in doing is to make a color magnitude diagram of a star cluster, which will result in a graph similar to an HR diagram. The open star cluster I have chosen is NGC 457, or the Owl Cluster. I chose this one because it is easily observable with right ascension of 01h 19m 32.6s and Declination +58° 17′ 27″. NGC 457 is roughly above the air mass of 1.5 between the hours of 2100 to 0600 towards the end of October. The open cluster is in the constellation Cassiopeia, and is fairly bright without having a high density of stars. This ensures I will be able to observe it with ease, and there will not be too many stars which could potentially cloud my data. I will be plotting the color magnitude along the x-axis and the apparent magnitude of the stars within the cluster. …show more content…
This will help determine the color of the star which is related to the temperature of the star. Along the Y-axis will be the apparent magnitude, which along with the color of the star will determine the size of the star. The result of plotting these stars will be a HR diagram of the cluster. From this diagram I will be able to infer information such as the age of the cluster (Carraro, Giovanni et al. 2006). I will also be able to determine the distance of the cluster from the Earth (Belikov, A. N. et al. 1999). My end goal for this project will not to be able to determine the distance or age of the cluster but to understand how to plot the diagram and how one might be able to infer information from it. My final product should be an HR diagram showing the turnoff point of the open cluster, and a better understanding of
Compress the safety bulb, hold it firmly against the end of the pipette. Then release the bulb and allow it to draw the liquid into the pipette.
Thorough analysis of the graph displayed enough evidence suggesting that an increase in substrate concentration will increase the height of bubbles until it reaches the optimum amount of substrate concentration, resulting in a plateau in the graphs (figure 2). Hence; supported the hypothesis.
Clusters like NGC 6530 were formed from the same cloud, and as a result have roughly the same age. This makes them of particular interest to astronomers. Because clusters are all formed from the same material, have roughly the same age, and distance from earth, variations in their brightness is only due to their mass ("Open Star Clusters"). This makes them particularly useful for studying stellar evolution. This cluster was first observed by Hodierna in 1654, and later found independently by Flamsteed in 1680 when he discovered the cluster was located within the Lagoon Nebula. Like most open star clusters, NGC 6530 is relatively young; having been formed less than 6 million years ago ("Young Stars Paint Spectacular Stellar Landscape"). It is known to consist of more than a hundred known bright stars, the light of which show very little reddening as a result of interstellar matter from the nebula, this is likely because the cluster is located just in front of the
To undertake titration and colorimetry to determine the concentration of solutions By carrying out titrations and colorimetry, the aim of this investigations was to use these methods such that the concentrations of different solutions used can be identified, and to help find the concentration of the unknown solution that were given. Using Titration and colorimetry the concentrations of different solutions in general can be determined and this helps to identify solutions with unknown concentrations. In this assignment I was asked to carry out two different scientific techniques and find the concentration of different solutions.
This graph shows that as enzyme concentration increases absorption also increases. In this case absorbance can be used to measure the enzyme’s activity, the higher the absorption the higher the activity. Since absorption increases as enzyme concentration increases, enzyme activity is promoted by increased enzyme concentrations. After a certain point enzyme activity would fail to increase as a result of increased enzyme concentration since there wouldn’t be enough substrate for all of the enzymes to react with.
According to the graph on amylase activity at various enzyme concentration (graph 1), the increase of enzyme dilution results in a slower decrease of amylose percentage. Looking at the graph, the amylose percentage decreases at a fast rate with the undiluted enzyme. However, the enzyme dilution with a concentration of 1:3 decreased at a slow rate over time. Additionally, the higher the enzyme dilution, the higher the amylose percentage. For example, in the graph it can be seen that the enzyme dilution with a 1:9 concentration increased over time. However, there is a drastic increase after four minutes, but this is most likely a result of the error that was encountered during the experiment. The undiluted enzyme and the enzyme dilution had a low amylose percentage because there was high enzyme activity. Also, there was an increase in amylose percentage with the enzyme dilution with a 1: 9 concentrations because there was low enzyme activity.
In this laboratory, the degree of absorbance for the pigments in a leaf sample were observed using mechanisms that involved pigment isolation from a leaf extract, obtaining wavelength measurements, and displaying the measurements on an absorption spectra.
It has a latitude of +60,-90. You can normally see it in September around nine o’ clock P.M. Capricorn has approximately 27 stars in its constellation. The three brightest stars, Alpha2, Deneb Algedi, and Omega, form a triangle in the sky that makes it easier to see Capricorn. The brightest star in Capricorn is Deneb Algedi with a magnitude of 2.85.
For example, if a star has a blue magnitude of 5 and a visual magnitude of 3, then it has a color index of 2. Color indices range from about -0.5 for the bluest stars t...
At Beltane the Pleiades star cluster rises just before sunrise on the morning horizon. The Pleiades is a cluster of seven closely placed stars, the seven sisters, in the constellation of Taurus, near his shoulder. When looking for the Pleiades with the naked eye, remember it looks like a tiny dipper-shaped pattern of six moderately bright star in the constellation of Taurus. It stands very low in the east-northeast sky for just a few minutes before sunrise.
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
Politics is a bloodsport, one big game of corruption, muckraking, prostitution, and defilement, which is played by the politicians, the media, and the seemingly innocent public that tends to forget that politicians are humans also, no better than the masses except for one thing, the ability to play the game. Primary Colors by Anonymous portrays this fraudulent game perfectly, exhibiting all of the dark aspects of a political campaign: from the vicious media in their pursuit of scandals, to the traitorousness of opposing candidates to destroy each other, all the way to the secretive sexual interactions taking place during the campaigning process. Yet in this vice-corrupted novel, Anonymous also manages to let the human side of the tainted politicians shine through, showing that they are imperfect, that they have flaws and weaknesses, and that they make mistakes in exactly the same fashion as all other human beings do. It is with these decadent political figures, Jack Stanton and Freddy Picker, that Anonymous in Primary Colors shows that there is still a nobleness to politics, a dedication to the voters, a love of the political game, and a human compassion in all of it.
In the titration experiment, the endpoint was recorded in the experimental data to be at 21.30 mL of NaOH and at a pH of 10.44. However, when all of the data from the table was graphed, the observed endpoint was too high up and on a part of the upper concave down portion of the graph. To ensure that the proper equivalence point was used, a new point had to be extrapolated that was roughly the point at which the graph went from concave up to concave down. This point was at 21.28 mL of NaOH added and pH of 9.20. Dividing both of these points by two, the half equivalence point was found to be at a pH of 5.30 and 10.64 mL of NaOH added. The pH is equal to the pKa here, so the pKa was found to be 5.30. Using data from the equivalence point extrapolated from the graph, the molar mass of the unknown was calculated to by 148 grams per mole. Lastly, because there was only one region of
The results from the gel electrophoresis were inconclusive so students selected their genotype, with the results shown in Table 1. The controls were successful with the (+/+) homozygous, (-/-) homozygous, and heterozygous lanes having bands at 941, 641, and both 941 and 641 respectively. The class allelic frequencies were 56.3% for p and 43.8% for q, indicating that slightly more individuals had the Alu insert on their chromosomes (Table 2). When the Hardy-Weinberg equation was applied, there were some discrepancies as shown by Table 3 between the observed and calculated frequencies. The p frequency was observed at 10% higher than Hardy-Weinberg while the q frequency was observed at 10% lower.
Chart of a family tree representing one trait (eye color). This particular chart follows eye