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Observation by Ian Rothwell: IC443 (Narrow-band)

Uploaded by

Ian Rothwell

Observer

Ian Rothwell

Observed

2019 Feb 08 - 23:56

Uploaded

2019 Feb 09 - 02:54

Objects

IC443

Planetarium overlay









Constellation

Gemini

Field centre

RA: 06h16m
Dec: +22°31'
Position angle: +112°27'

Field size

1°02' × 0°52'

Equipment
  • Skywatcher Explorer 150P
  • ZWO ASI1600MMPro-Cool
  • ZWO EFW
  • Baader H-alpha, OIII ans SII filters
Exposure

24x 5min subs H-alpha (L), 12x 5min subs H-alpha (R), 6x 10min subs SII (G), 6x 10min subs (B)

Location

Bournemouth

Target name

IC443

Title

IC443 (Narrow-band)

About this image

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.

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Comments
David Swan
David Swan, 2019 Feb 09 - 22:30 UTC

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

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