Difference between revisions of "Aperture photometry using APT"
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For Macs, I found that I needed to start it from the Applications directory where I installed it. I couldn't start it by double-clicking on the icon. | For Macs, I found that I needed to start it from the Applications directory where I installed it. I couldn't start it by double-clicking on the icon. | ||
| + | =Loading an image= | ||
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| + | Click on "choose FITS image" and load an image. Use the buttons and fill-in boxes to change the stretch (limits and scale) if desired. You can obtain a histogram of the values in the image by clicking on the "image histogram" button. | ||
[[image:aptscreen.png]] | [[image:aptscreen.png]] | ||
Revision as of 03:39, 15 May 2008
Downloading, Installing, and Starting the Software
APT = Aperture Photometry Tool. Russ Laher wrote it, and it can be downloaded here. Follow the directions there to install it.
For Macs, I found that I needed to start it from the Applications directory where I installed it. I couldn't start it by double-clicking on the icon.
Loading an image
Click on "choose FITS image" and load an image. Use the buttons and fill-in boxes to change the stretch (limits and scale) if desired. You can obtain a histogram of the values in the image by clicking on the "image histogram" button.
