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Contains:  gamma Cas nebula, IC 63
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IC 63 The Ghost of Cassiopeia, 


            Barry Wilson
IC 63 The Ghost of Cassiopeia

IC 63 The Ghost of Cassiopeia

Technical card

Resolution: 3346x2667

Dates:Sept. 27, 2019

Astrodon E-Series Blue filter: 30x300" bin 1x1
Astrodon E-Series Green filter: 30x300" bin 1x1
Astrodon E-Series Red filter: 30x300" bin 1x1
Astrodon Ha 3nm: 24x1200" bin 1x1
Astrodon Luminance E-Series: 36x600" bin 1x1

Integration: 21.5 hours

Avg. Moon age: 28.05 days

Avg. Moon phase: 2.45% job: 2980327

RA center: 15.026 degrees

DEC center: 61.024 degrees

Pixel scale: 0.743 arcsec/pixel

Orientation: 89.821 degrees

Field radius: 0.442 degrees

Locations: Entre Encinas y Estrellas E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura


Having captured this target widefield and in mosaics both Steve and I wanted to process a higher resolution image to tease out the details in the 'Ghost'. Care when framing is need at this scale to place Gamma Cas just outside of the frame but having its influence readily discernible as the cause of the emission and reflection nebula comprising the Ghost.

From the Hubble Site: "Powerful gushers of energy from seething stars can sculpt eerie-looking figures with long flowing veils of gas and dust. One striking example is "the Ghost of Cassiopeia," officially known as IC 63, located 550 light-years away in the constellation Cassiopeia the Queen.

The nebula’s ethereal glow might remind people of apparitions such as those reported by paranormal investigators. In reality, it's simply hydrogen that is being bombarded with ultraviolet radiation from the nearby, blue-giant star Gamma Cassiopeiae (not seen here), causing it to glow in red light. The blue color is from light reflected off of the nebula’s dust.

The IC 63 nebula is not the only object under the influence of the blinding star, which unleashes as much energy as 34,000 suns. The Ghost Nebula is part of a much larger nebulous region surrounding Gamma Cassiopeiae that measures approximately two degrees on the sky — roughly four times as wide as the full Moon."

Data acqusition: Barry Wilson & Steve Milne
Processing: Barry Wilson



Barry Wilson
License: None (All rights reserved)

Sky plot

Sky plot


IC 63 The Ghost of Cassiopeia, 


            Barry Wilson