[back] Cassiopeia A (SNR G111.7-2.1) in Cassiopeia
Higher resolved image / höher aufgelöstes Bild (2800 x 2807 Pixel)
|
(c) 2013 All astro photo images are copyrighted. They may not be used or reproduced without explicit written permission from the authors. |
|
180" |
|
About this Image / Über dieses Bild
| CCD: | SBIG STX16803 |
| Image Type, Orientation: | LRGB-Composite, North is at 12:00h |
| Exposure time: | L: 20x900 sec., R: 5x900 sec., G,B: 4x900 sec., all 1x1 bin |
| Exposure date: | September 1st...5th, 2011 |
| Location: | Skinakas Observatory at Crete, Greece, remote-controlled from Skinakas 30cm-telescope dome |
| Filter: | ASTRODON 65mm Filterset for STX |
| Instrument: | Ganymed 60cm-Hypergraph in secondary focus (f=4938.3 mm) |
| Photographer: | Makis Palaiologou, Johannes Schedler, Josef Pöpsel, Stefan Binnewies |
| Seeing (FWHM): | 1.2" |
|
Remarks: |
Image editing for this object was done by Johannes Schedler (panther-observatory.com) - as excelent as usual. Thanx for this! We animated the image above with his image of the SNR, done in October 2008. The expansion becomes obvious immediately with different speed in different directions. |
|
Bemerkungen: |
Die Bildbearbeitung für dieses Motiv übernahm dankenswerterweise Johannes Schedler (panther-observatory.com) in bewährt exzellenter Weise - dafür herzlichen Dank! Mit seiner Aufnahme dieses SNR aus dem Oktober 2008 haben wir unser Ergebnis überlagert (siehe unten) und animiert - die Expansion wird sofort deutlich - und zwar unterschiedlich schnell in die verschiedenen Richtungen. |
Animation of Cassiopeia A: 2008 vs. 2011
(c) 2013 All astro photo images are copyrighted. They may not be used or reproduced without explicit written permission from the authors.
Back to the Supernovae-Remnants Overview / Zurück zur Supernovae-Überreste-Übersichtsseite