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Contains:  Helix nebula, NGC 7293
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NGC 7293 - The Helix Nebula, 


            Michel Makhlouta
NGC 7293 - The Helix Nebula

NGC 7293 - The Helix Nebula

Technical card

Resolution: 2048x1539

Dates:July 4, 2019July 5, 2019July 6, 2019

ZWO 31mm Ha 7nm: 26x300" (gain: 139.00) -10C bin 1x1
ZWO 31mm OIII 7nm: 29x300" (gain: 139.00) -10C bin 1x1

Integration: 4.6 hours

Darks: ~50

Flats: ~50

Bias: ~200

Avg. Moon age: 3.04 days

Avg. Moon phase: 10.85%

Bortle Dark-Sky Scale: 5.00 job: 2798182

RA center: 22h 29' 36"

DEC center: -20° 49' 48"

Pixel scale: 1.629 arcsec/pixel

Orientation: 3.719 degrees

Field radius: 0.580

Locations: Home, Batroun, North, Lebanon

Data source: Backyard


The Helix Nebula, aka the Eye of God, is a large planetary nebula located in the constellation Aquarius. This object is one of the closest to Earth of all the bright planetary nebulae, with a distance of 655 light-years.

This planetary nebula was formed by an intermediate to low-mass star, which sheds its outer layers near the end of its evolution. The remnant central stellar core, known as a planetary nebula nucleus or PNN, is destined to become a white dwarf star. The observed glow of the central star is so energetic that it causes the previously expelled gases to brightly fluoresce.

Our own star, the Sun, is expected to end up as a white dwarf and forming a planetary nebula. This is going to happen when its hydrogen fuel in its core is depleted, which is estimated to take place in 5 to 6 billion years.

Source: Wikipedia

This was imaged on the same nights as the Trifid, given the extra 2-3 hours after it got too low and to benefit from the rest of the night. This nebula doesn't rise above 35 degrees from my location, which made it a bit hard to capture with a poor performing mount, and very hard to process.

EDIT: I've mistakenly disabled comments on this image. Comments and feedback are, as usual, much appreciated.

Clear Skies!



Michel Makhlouta
License: None (All rights reserved)

Sky plot

Sky plot


NGC 7293 - The Helix Nebula, 


            Michel Makhlouta