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Observation by Peter Goodhew FRAS: Abell 84 in Cassiopeia

Uploaded by

Paul Downing, FRAS


Peter Goodhew FRAS


2020 Nov 04 - 16:08


2020 Nov 21 - 13:53


Abell 84

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Field centre

RA: 23h47m
Dec: +51°23'
Position angle: -3°17'

Field size

0°18' × 0°12'

  • APM TMB 152 LZOS Refractors
  • QSI6120wsg8 camera

Blue: 7x300" Green: 8x300" Lum: 9x300" Red: 9x300" Ha: 127x900" bin 1x1 OIII 93x900" bin 1x1 Total Integration: 57.8 hours


Fregenal de la Sierra, Spain

Target name

Abell 84


Abell 84 in Cassiopeia

About this image

It's a while since we featured a planetary nebula, and here is a very nice one, imaged by Peter Goodhew.  In his own words:

"Abell 84 is a faint planetary nebula in the constellation Cassiopeia. It is rarely imaged - I'm baffled as to why. This was an experiment to see how much structural detail I could tease out of this target as I couldn't find much in other online images. All data capture was done around full moon. I went deep to get good quality data despite the lunar presence and used drizzle x2 for the first time to increase image resolution."

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