Determination of stellar temperatures

Cardinal Scholar

Show simple item record

dc.contributor.advisor Sprague, Newton G. en_US Long, Patrick D., 1949- en_US 2011-06-03T19:30:13Z 2011-06-03T19:30:13Z 1970 en_US 1970
dc.identifier LD2489.Z78 1970 .L6 en_US
dc.description.abstract This study was an attempt to determine the temperature of select stellar bodies. Spectral data was to be obtained using a compensated vacuum thermocouple, a 10-inch Newtonian reflector, a current galvanometer, and select filters. Effective temperatures were to be calculated using the spectral data collected, Planck's radiation law, and bolometric theory. No stellar radiation measurements were taken because the galvanometer was not sensitive enough to detect current produced by the thermocouple when it was illuminated by stellar radiation.After the unsuccessful attempt to measure stellar radiation data was collected for radiation from 0.8425 of the radius of the sun's disk. Ratios for the intensity of radiation for three spectral components was found as follows; 0.48 for λ = 0.43 μ (blue ); 1.35 for λ = 0.525 μ (green); 0.88 for λ = 0.825 μ (red-infrared). water cell radiation measurements were also taken to provide relative energy information. The water cell measurements show that the sun transmits approximately 51% of its energy in the visible an ultraviolet spectrum.Ball State UniversityMuncie, IN 47306 en_US
dc.format.extent 39 leaves : ill. ; 28 cm. en_US
dc.source Virtual Press en_US
dc.subject.lcsh Stars -- Temperature. en_US
dc.subject.lcsh Astrophysics. en_US
dc.subject.other Ball State University. Thesis (M.S.) en_US
dc.title Determination of stellar temperatures en_US Thesis (M.S.)--Ball State University, 1970. en_US
dc.identifier.cardcat-url en_US

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

  • Master's Theses [5576]
    Master's theses submitted to the Graduate School by Ball State University master's degree candidates in partial fulfillment of degree requirements.

Show simple item record

Search Cardinal Scholar


My Account