PDS logoPlanetary Data System
PDS Information
Find a Node - Use these links to navigate to any of the 8 publicly accessible PDS Nodes.

This bar indicates that you are within the PDS enterprise which includes 6 science discipline nodes and 2 support nodes which are overseen by the Project Management Office at NASA's Goddard Space Flight Center (GSFC). Each node is led by an expert in the subject discipline, supported by an advisory group of other practitioners of that discipline, and subject to selection and approval under a regular NASA Research Announcement.
Click here to return to the Photojournal Home Page Click here to view a list of Photojournal Image Galleries Photojournal_inner_header
Latest Images  |  Spacecraft & Technology  |  Animations  |  Space Images App  |  Feedback  |  Photojournal Search  

PIA15807: Using 'Dark Holes' to Spot Planets
 Instrument:  Adaptive Optics System and Coronagraph 
 Product Size:  1123 x 563 pixels (w x h)
 Produced By:  Project 1640 
 Full-Res TIFF:  PIA15807.tif (1.898 MB)
 Full-Res JPEG:  PIA15807.jpg (105.7 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

These two images show HD 157728, a nearby star 1.5 times larger than the sun. The star is centered in both images, and its light has been mostly removed by an adaptive optics system and coronagraph belonging to Project 1640, which uses new technology on the Palomar Observatory's 200-inch Hale telescope near San Diego, Calif., to spot planets. The remaining starlight leaves a speckled background against which fainter objects cannot be seen. On the left, the image was made without the ultra-precise starlight control that Project 1640 is capable of. On the right, the wavefront sensor was active, and a darker square hole formed in the residual starlight, which will allow objects up to 10 million times fainter than the star to be seen. Images were taken on June 14, 2012. Researchers and engineers behind the project come from the American Museum of Natural History in New York, N.Y., the California Institute of Technology in Pasadena, and NASA's Jet Propulsion Laboratory, also in Pasadena.

Image Credit:
Project 1640

Image Addition Date:
2012-07-09