Exoplanets
NICMOS Image of HR 8799 Planetary System
October 6, 2011 · NASA · Pegasus
Zoom to full resolution See where it is in the 3D sky Original on NASA ↗
This is an image of the star HR 8799 taken by Hubble's Near Infrared Camera and Multi-Object Spectrometer (NICMOS) in 1998. A mask within the camera (coronagraph) blocks most of the light from the star. In addition, software has been used to digitally subtract more starlight. Nevertheless, scattered light from HR 8799 dominates the image, obscuring the faint planets.
About the colours
This image was originally black and white and recorded only overall brightness. These brightness values were translated into a range of arbitrary colors. Such color "maps" can be useful in helping to distinguish subtly varying brightness in an image.
About the data
The original NICMOS data were from the HST proposal 7226 : E. Becklin (University of California, Los Angeles) et al.
The science team comprises: R. Soummer, B. Hagan, and A. Rajan (STScI), L. Pueyo and A. Thormann (JHU), and C. Marois (Herzberg Institute of Astrophysics, Victoria).
