Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)
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Cassiopeia A - Hubble+Chandra data, 


            Fredrik Ödling
Cassiopeia A - Hubble+Chandra data
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Cassiopeia A - Hubble+Chandra data

Technical card

Software: PixInsight

Frames: 1x216000" (60h)

Integration: 60h

Basic astrometry details

Astrometry.net job: 170345

RA center: 23h23m26s.6

DEC center: +58°4854

Pixel scale: 0.050 arcsec/pixel

Orientation: -0.023 degrees

Field radius: 0.093 degrees

Resolution: 620x434


Data from Hubble(1) and Chandra(2) processed by myself.

It was a challenge to combine them due to the difference in resolution between the two space telescopes, which is clearly visible in some parts of the image.

I paired up three different wavelengths from the two telescopes;

Hubble filter: Chandra filter: Assigned color:




At the center of the image there's a small white point of light, this point is invisible in optical light and is most likely the remains of the star that created this supernova remnant.

(1): http://hla.stsci.edu/hlaview.html

(2): http://chandra.si.edu/photo/openFITS/

Based on observations made with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA).

Support for Program number 10286 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555.

Also for the Chandra data:

Credit: NASA/CXC/SAO/D.Patnaude et al

Obs. IDs: 114, 1952, 5196, 9117, 9773


Sky plot

Sky plot


Cassiopeia A - Hubble+Chandra data, 


            Fredrik Ödling