Difference: StewartBoogertPhotometry20180123 (1 vs. 2)

Revision 223 Jan 2018 - RebekahChafer1

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META TOPICPARENT name="StewartBoogertPhotometry2017"
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Using Aladin to find H-R diagram of pleiades

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Observation

Took multiple photos of Pleiades in small field of view in different filters.
pleiades-001_b_40.png

Then moved to a wider field of view, no filter. Aiming to use this for HR diagram rather than the smaller field of view:

pleiades-004.png

Annotated version using astrometry.net:

http://nova.astrometry.net/user_images/1946421#annotated

Using Aladin to find H-R diagram of Pleiades

  simbad_HR_sim.png
Line: 16 to 27
  Star fitting does seem to work even with the estimated values discussed in last meeting, also need to talk about what Gaussian we are fitting.
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Finding Optimum Threshold

Optimum_threshold.png

Multiplier much higher than expected. Is this something wrong with the simulation or the code? Image used (500 stars):

FindOptimumThresholdImage.png

Star Matching Algorithm

Attempted on real data, haven't actually changed the code yet. But it works for most of the stars using real data:

Pleiades_Image_Matching_First_Attempt.png

Pleiades_Image_Matching_First_Attempt_ZoomedIn.png

 -- LunaBorella - 23 Jan 2018

META FILEATTACHMENT attachment="simbad_HR_sim.png" attr="" comment="" date="1516666075" name="simbad_HR_sim.png" path="simbad_HR_sim.png" size="17027" user="zavc160" version="1"
META FILEATTACHMENT attachment="Tycon_2_HR_sim.png" attr="" comment="" date="1516666088" name="Tycon_2_HR_sim.png" path="Tycon_2_HR_sim.png" size="11955" user="zavc160" version="1"
META FILEATTACHMENT attachment="Figure_4.png" attr="" comment="" date="1516666096" name="Figure_4.png" path="Figure_4.png" size="65802" user="zavc160" version="1"
Added:
>
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META FILEATTACHMENT attachment="pleiades-001_b_40.png" attr="" comment="Small File of View Pleiades" date="1516671956" name="pleiades-001_b_40.png" path="pleiades-001_b_40.png" size="1387613" user="zavc984" version="1"
META FILEATTACHMENT attachment="pleiades-004.png" attr="" comment="Wide View image of Pleiades" date="1516672008" name="pleiades-004.png" path="pleiades-004.png" size="11859080" user="zavc984" version="1"
META FILEATTACHMENT attachment="Optimum_threshold.png" attr="" comment="Trying to find Optimum threshold" date="1516672240" name="Optimum_threshold.png" path="Optimum threshold.png" size="32608" user="zavc984" version="1"
META FILEATTACHMENT attachment="FindOptimumThresholdImage.png" attr="" comment="" date="1516672387" name="FindOptimumThresholdImage.png" path="FindOptimumThresholdImage.png" size="254796" user="zavc984" version="1"
META FILEATTACHMENT attachment="Pleiades_Image_Matching_First_Attempt.png" attr="" comment="" date="1516674207" name="Pleiades_Image_Matching_First_Attempt.png" path="Pleiades Image Matching First Attempt.png" size="50209" user="zavc984" version="1"
META FILEATTACHMENT attachment="Pleiades_Image_Matching_First_Attempt_ZoomedIn.png" attr="" comment="" date="1516674221" name="Pleiades_Image_Matching_First_Attempt_ZoomedIn.png" path="Pleiades Image Matching First Attempt_ZoomedIn.png" size="28016" user="zavc984" version="1"

Revision 123 Jan 2018 - LunaMarieBorella1

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META TOPICPARENT name="StewartBoogertPhotometry2017"

Using Aladin to find H-R diagram of pleiades

simbad_HR_sim.png

Using star catalog Simbad

Tycon_2_HR_sim.png

using star catalog Tycon-2

Star Fitting

Figure_4.png

Star fitting does seem to work even with the estimated values discussed in last meeting, also need to talk about what Gaussian we are fitting.

-- LunaBorella - 23 Jan 2018

META FILEATTACHMENT attachment="simbad_HR_sim.png" attr="" comment="" date="1516666075" name="simbad_HR_sim.png" path="simbad_HR_sim.png" size="17027" user="zavc160" version="1"
META FILEATTACHMENT attachment="Tycon_2_HR_sim.png" attr="" comment="" date="1516666088" name="Tycon_2_HR_sim.png" path="Tycon_2_HR_sim.png" size="11955" user="zavc160" version="1"
META FILEATTACHMENT attachment="Figure_4.png" attr="" comment="" date="1516666096" name="Figure_4.png" path="Figure_4.png" size="65802" user="zavc160" version="1"
 
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