Get Images

Launch Get Images

The Get Images tool lets you view images and spectra. Four separate tools are available from the Get Images menu. To access any of the tools, click on the appropriate picture on the right side of the window.

• Get Fields lets you view images of SDSS fields, regions of the sky about 10 x 14 arcminutes across. Look them up by SDSS run, camcol, and field number, which you can find with the Object Explorer (look up any object in the field). You can request an image of the field in one of five sizes.

  Use the Get Fields tool when you want to view an image of a region of the sky. Sometimes you might see a picture in the Navigation Tool that you want to download. Click on any object in the field, them use the Object Explorer to find its run, camcol, and field number. Then use Get Fields to view the image.

• Get Spectra lets you view spectra for individual objects. Select the plate and fiber number to view a spectrum. These spectra are the same ones you can see with the Object Explorer.

• Get Plates lets you choose spectra by looking through the 640 spectra on an SDSS plate. Select a plate from the drop-down menu, then click on any spectrum number from the list below. The list shows the spectrum number (from 1 to 640), the type of spectrum (star, galaxy, quasar, or unknown), and the redshift z.

  The Get Plates tool is the easiest way to browse through the spectra of many objects at once. It allows you to compare spectra for stars, galaxies, and quasars, or to find average redshifts of different objects.

Done