Image Analysis Program :: essays research papers

Purpose to become familiar with the image analysis curriculum and to develop an understanding to the size and age of planetary nebulaeProcedureThe initiatory part of the experiment involved using a picture of a church and back round to understand different pels, ADU, zoom, and how to get the (x,y) coordinates. We wherefore took this brief understanding of pictures and applied it to the stars. We loaded a picture of nebulae m42. afterward this we postulate to calculate the average number of stars or solar masses. We put the (x,y) coordinates of a position in the center of the nebulae and on the edge of the nebulae. We utilize the following distance canon to find the distance between the points. afterwards this calculation the answer in pixels take to be substituteed to sparkle seconds for use in the small angle reflection where 1 pixel approx. = 3 arc seconds. We now could use the small angle formula to find the actual radius in pc. Where d is the radius D is the distanc e from the hide out in pc and theta is the value we had just show out in arc seconds.After the calculation we needed to convert pc to meters so we used the calculation factor of 1pc=3*1016m Now we needed to find the density. Density was figured out by multiplying the majority substance in the nebulae (hydrogen) per cubic m3 by the mass of hydrogen in kg, which gave us the formulaWe then had the information we needed to find the mass of the nebulae. We calculated this by using a spherical shape for ease of calculation. We used the following formula where m is the mass p is the density and r is the radius found in a higher place from the small angle formula (d).Now that we had the amount of mass we needed to find the solar masses so we divided the mass of the nebulae by one solar mass unity in the following equation.Our adjoining part of this lab was to find the age of the nebulae m57 .We used the same formula and procedure as before to find the radius of the star. The distance fr om Earth was given to us to complete the small angel formula. We then needed to convert from the au to km by the following equation.We were told the expansion of the nebulae to be 20 km/s and assumed this had been going on since the kindred of the nebulae for simplicity of calculation.