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IC443 (Narrow-band)


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About this observation
Ian Rothwell
Time of observation
08/02/2019 - 23:56
Observing location
Skywatcher Explorer 150P
ZWO ASI1600MMPro-Cool
Baader H-alpha, OIII ans SII filters
24x 5min subs H-alpha (L), 12x 5min subs H-alpha (R), 6x 10min subs SII (G), 6x 10min subs (B)
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The Jellyfish Nebula (IC443) is a supernova remnant approximately 70 light years across and about 5,000 light years from Earth. The supernova is believed to have occurred between 3,000 and 30,000 years ago. At it's centre is a super-dense neutron star.

Despite a windy night and rapidly moving clouds, I managed to get three hours of H-alpha, OIII and SII lights. I combined these with an hour of H-alpha frames from five nights ago to produce this colour narrow-band image. I would have taken more subs but the roof of my observatory was on and off every five minutes at one point when it looked like permanent cloud and possibly rain. 

I have a better quality non-compressed image on my Flickr account here.


djswan2002's picture

A demonstration of your skill and the power of narrowband in our light polluted skies.

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