Observation by Dr Ollie Garrett: IC443 / Sh-248 The Jellyfish Nebula

Uploaded by

Dr Ollie Garrett

Observer

Dr Ollie Garrett

Observed

2018 Mar 19 - 22:15

Uploaded

2018 Mar 20 - 20:14

Objects

IC443

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Constellation

Gemini

Field centre

RA: 06h16m
Dec: +22°34'
Position angle: -93°47'

Field size

2°07' × 1°41'

Equipment
  • 80mm APO refractor (operating at f5 with Televue 0.8x reducer / flattener)
  • NEQ6 mount
  • SBIG STF-8300M CCD
  • SX Lodestar and OAG
  • Baader 7nm Ha filter
Exposure

Ha: 7 x 900 secs

Location

Dartmoor, UK

Target name

IC443 / Sh-248 The Jellyfish Nebula

Title

IC443 / Sh-248 The Jellyfish Nebula

About this image

An experimental attempt at this target to examine the sampling and resolution of my short tube refractor setup. The presented image is a cropped version but still exhibits a disappointing degree of field curvature. I will return to the target again, using my larger refractor, to compare and contrast the results.

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