M51 (Whirlpool Galaxy) M51, the Whirlpool Galaxy, is shown here at multiple wavelengths. The top image is an Einstein HRI image, the middle is a red emission hydrogen line photograph, and the bottom image is a blue light image with radio contours overlaid. The Einstein HRI image shows three distinct sources associated with the spiral arms, plus a stronger nucleus source. The red light image shows spiral arm structure and bright HII regions. Images courtesy of G. Fabbiano at CfA, taken from Figure 6-11a in Charles and Seward. Einstein HRI image of M51 Red light (hydrogen) image of M51 Blue light image of M51 with radio contours overlaid Search for an Image: (Enter the name of an object.) Additions or Comments: Have we left anything out? Is there something you would like to have added to this page (a link to your own group's research page, for example...)? IMAGES | By Mission | Stars | Cataclysmic Variables | X-ray Binaries | Pulsars | Supernova Remnants & Planetary Nebulae | Galaxies | Active Galactic Nuclei | Clusters and Groups of Galaxies | X-ray/gamma-ray Background & Deep Fields | Solar System Objects | Gamma Ray Bursts HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public Last modified: Thursday, 26-Jun-2003 13:48:46 EDT