Daily Image
15-08-2017
Hanny's Voorwerp revisited
| Submitter: | Albert van Duin |
| Description: | Ten years ago, school teacher Hanny van Arkel discovered a mysterious object near galaxy IC2497 while participating in a project called Galaxy Zoo. She visited ASTRON in November 2008. http://www.astron.nl/dailyimage/main.php?date=20081127 The "blob" she found turned out to be a rare type of astronomical object called a quasar ionization echo. On Christmas eve 2008 I managed to image this object from my back garden in Beilen with my 200mm telescope and a Canon DSLR camera: http://www.astron.nl/dailyimage/main.php?date=20090102 The green blob is clearly visible. Last spring I gave it another shot with a bigger telescope and a better camera, the result is shown above. To assemble a true colour image, 3 hours worth of 600s integrations were made using LRGB filters and a cooled monochrome CCD camera on my 400mm telescope. A lot of faint background galaxies can be seen in this image, to view the full image, please visit: http://www.astrobin.com/full/274013/0/ |
| Copyright: | astropix.nl |
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