# data[].attributes.body
https://www.nasa.gov/multimedia/imagegallery/image_feature_2368.html
http://www.space.com/14282-helix-nebula-eye-amazing-photo.html
http://www.constellation-guide.com/helix-nebula-ngc-7293-caldwell-63-in-aquarius/
https://www.nasa.gov/mission_pages/spitzer/news/spitzergalex20121003.html
https://www.nasa.gov/mission_pages/spitzer/news/spitzergalex20121003.html

# data[].attributes.body
Another intriguing fact about the Helix Nebula is that it appears similar in a wide range of wavelengths. From ultraviolet to infrared, "The Eye" is still easily distinguishable.

# data[].attributes.body
The Helix Nebula was the first planetary nebula discovered to have cometary knots. Cometary knots are believed to be a common feature in the evolution of planetary nebulae. They are generally larger than the Solar System. They have cusps and tails. There are an estimated 20,000 cometary knots in the Helix Nebula.

# data[].attributes.body
First discovered by the German astronomer Karl Ludwig Harding in the early 19th century.
It has an apparent visual magnitude of 7.6.
The nebulas age is estimated to be around 10,600 years.

# data[].attributes.body
The Helix Nebula (NGC 7293) is the aftermath of a dying star 650 light years away, in the constellation of Aquarius. It is also called "The Eye" for the way it looks.