|Date:||26.10.1995||Time:||23:05 UT||Exposure:||B:10m, V:10m, H-alpha:20m|
|Field of View:||10' x 8'||Receiver:||WWFPP, 20482 CCD||Filter:||B, V, H-alpha|
|Instrument:||1.23m||Observatory:||Calar Alto||Observer:||T. Credner, S. Kohle|
© Copyright by the observers
Astronomical Institutes of the University of Bonn
This three color composite is consisting of H-alpha, Johnson V, and B filter exposures, represented in red, green, and blue respectively. The fine structured red filaments, observed at a wavelength of 656nm, show the distribution of the ionized hydrogen. This are the turbulent and expanding remnants of the starexplosion of the year 1054. Quite different is the more homogeneous distribution of the green and blue parts. This is mainly the high energetic (shorter wavelength) synchrotron radiation. In the center of this nebula is the Crab-Pulsar , which is creating a strong magnetic field. Charged particles are circulating in this magnetic field, loosing energy and so giving this synchrotron radiation.
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