Title: Helix Nebula NGC 7293
Resolution: 3840 x 2160

The Helix Nebula, also known as NGC 7293, is a large planetary nebula located in the constellation Aquarius. It is one of the nearest and most well-known planetary nebulae, and its distinctive appearance has earned it the nickname “The Eye of God.” Here are some key features and information about the Helix Nebula:

  1. Location:
    • The Helix Nebula is situated in the constellation Aquarius, near the border with the constellation Ophiuchus. It is relatively close to Earth, at a distance of approximately 700 light-years.
  2. Coordinates:
    • Right Ascension: 22h 29m 38.55s
    • Declination: -20° 50′ 13.6″
  3. Planetary Nebula:
    • The Helix Nebula is a planetary nebula, a type of emission nebula that results from the expanding outer layers of a dying star. In the case of the Helix Nebula, the central star that has shed its outer layers is a Sun-like star in the late stages of its evolution.
  4. Structure:
    • The nebula has a complex and intricate structure, with a central “eye” or “core” surrounded by extended shells of gas and dust. The central star, which is now a white dwarf, illuminates the surrounding material.
  5. Helical Filaments:
    • The name “Helix” is derived from the appearance of helical or spiral-shaped structures in the outer layers of the nebula. These filaments are thought to be shaped by the interaction of fast stellar winds from the central star with the slower-moving material ejected during its earlier evolution.
  6. Size:
    • The Helix Nebula has an apparent size in the sky equivalent to about half the diameter of the full Moon. Its physical size is estimated to be about 2.5 light-years.
  7. Illuminating Star:
    • The central star of the Helix Nebula is a white dwarf, the remnant of a star that was once similar to our Sun. The intense ultraviolet radiation from the white dwarf causes the surrounding nebula to glow.
  8. Observation:
    • The Helix Nebula is a popular target for amateur astronomers. It is visible in binoculars and small telescopes, and its distinct appearance makes it a favorite for astrophotography.
  9. Astronomical Catalog Designation:
    • The Helix Nebula is cataloged as NGC 7293 in the New General Catalogue (NGC), a comprehensive catalog of astronomical objects.
  10. Hubble Space Telescope Image:
    • The Hubble Space Telescope has captured stunning images of the Helix Nebula, revealing fine details and providing insights into the processes shaping its structure.

The Helix Nebula serves as an excellent laboratory for studying the final stages of stellar evolution and the complex interactions between a dying star and the surrounding interstellar medium. Its beauty and accessibility make it a notable object in the night sky.