Astronomy 101 for 2 year college Lab Report Example | Topics and Well Written Essays - 500 words

Astronomy 101 for 2 year college - Lab Report Example5% of them seem to split in two facular points (h) they disappear simply by fading away in an intergranular space (i) they never merge with another facular point or with a granule.C. Small dark regions called sunspots. solarisespots be cooler regions on the photosphere. Since they are 1000--1500 K cooler than the rest of the photosphere, they do not emit as much light and appear darker.B. During a total solar eclipse, an exceptional situation occurs, and for a a few(prenominal) fleeting seconds, an emission spectrum can be observed. This happens at the very beginning of totality and just aft(prenominal) the last bit of photosphere has been covered by the Moon. (Picture 1) For a period of several to perhaps ten seconds the chromosphere is panoptical as a red arc. (Recall that the chromosphere is a very thin layer just above the photosphere.) a good deal prominences are seen jutting from the chromosphere. The deep red color of the chromosphere comes from very strong emission in the hydrogen-alpha absorb at 656 nm. Because the chromosphere is quite rare and hot (with a temperature of about 10,000 K) it shows an emission spectrum in the absence of whatever light from the much brighter photosphere. Of course, the advance of the Moon soon covers the chromosphere and then the much rarer corona becomes visible as a broad white halo. Within minutes totality reaches completion, the chromosphere reappears on the opposite side of the Sun followed seconds later by the overwhelming brightness of the photosphere. (Picture 2)Because the chromosphere is so thin, it forms an ideal subject for spectral imaging. A diffraction peckish inserted in the light path of a telescope separates the light according to wavelength (just as in your spectrometer). An inclined camera will then record the chromosphere imaged in each of the component wavelengths in its emission spectrum. This is the germinate spectrum, so-called becaus e of its brief accessibility.B. Because the chromosphere is quite rare and hot (with a temperature of