Difference: StewartBoogertPhotometry20171027 (1 vs. 3)

Revision 327 Oct 2017 - LunaMarieBorella1

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Star Field Simulation:

First a random position function was made for a variable canvas size and number of stars. At this point, the stars are just points.

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  20Stars.png
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Star Finder

Attempted the flood fill algorithm.

Original image

alpha_persei0.JPG

Star finder:

Alpha0Starfinder.png

The next sext is to do the the averaging of box pixels so I can get a appropriate background and threshold for the algorthim.

 
META FILEATTACHMENT attachment="Position_of_Stars_Example.png" attr="" comment="Positions of simulated stars example scatter plot" date="1508680622" name="Position_of_Stars_Example.png" path="Position of Stars Example.png" size="33206" user="zavc984" version="2"
META FILEATTACHMENT attachment="FirstStar.fits" attr="" comment="" date="1508951344" name="FirstStar.fits" path="FirstStar.fits" size="83520" user="zavc984" version="1"
META FILEATTACHMENT attachment="FirstStar.png" attr="" comment="Image of first simulated star. Monte Carlo not implemented yet. - png image" date="1508951604" name="FirstStar.png" path="FirstStar.png" size="540" user="zavc984" version="1"
META FILEATTACHMENT attachment="20Stars.png" attr="" comment="Image with 20 stars" date="1508954227" name="20Stars.png" path="20Stars.png" size="13379" user="zavc984" version="1"
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META FILEATTACHMENT attachment="alpha_persei0.JPG" attr="" comment="" date="1509065748" name="alpha_persei0.JPG" path="alpha_persei0.JPG" size="798764" user="zavc160" version="1"
META FILEATTACHMENT attachment="Alpha0Starfinder.png" attr="" comment="" date="1509065849" name="Alpha0Starfinder.png" path="Alpha0Starfinder.png" size="225418" user="zavc160" version="1"

Revision 225 Oct 2017 - RebekahChafer1

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Position_of_Stars_Example.png
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Star Field Simulation:

First a random position function was made for a variable canvas size and number of stars. At this point, the stars are just points.

Position_of_Stars_Example.png

Next, a 2D Gaussian function was used over the position of the star with mean values of x and y = 5. The array was then converted into a fits image.

FirstStar.png

The same was attempted for twenty stars on a larger canvas size, which worked, but took a long time. This is because the algorithm was looped over every pixel for every star, this can be fixed by limiting the number of pixels to iterate over around each star. The monte carlo part of the simulation hasn't yet been implemented.

20Stars.png

 
META FILEATTACHMENT attachment="Position_of_Stars_Example.png" attr="" comment="Positions of simulated stars example scatter plot" date="1508680622" name="Position_of_Stars_Example.png" path="Position of Stars Example.png" size="33206" user="zavc984" version="2"
Added:
>
>
META FILEATTACHMENT attachment="FirstStar.fits" attr="" comment="" date="1508951344" name="FirstStar.fits" path="FirstStar.fits" size="83520" user="zavc984" version="1"
META FILEATTACHMENT attachment="FirstStar.png" attr="" comment="Image of first simulated star. Monte Carlo not implemented yet. - png image" date="1508951604" name="FirstStar.png" path="FirstStar.png" size="540" user="zavc984" version="1"
META FILEATTACHMENT attachment="20Stars.png" attr="" comment="Image with 20 stars" date="1508954227" name="20Stars.png" path="20Stars.png" size="13379" user="zavc984" version="1"

Revision 122 Oct 2017 - RebekahChafer1

Line: 1 to 1
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Position_of_Stars_Example.png

META FILEATTACHMENT attachment="Position_of_Stars_Example.png" attr="" comment="Positions of simulated stars example scatter plot" date="1508680622" name="Position_of_Stars_Example.png" path="Position of Stars Example.png" size="33206" user="zavc984" version="2"
 
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