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  2. Helix Nebula - Wikipedia

    en.wikipedia.org/wiki/Helix_nebula

    The central star of the Helix Nebula is a white dwarf of spectral type DAO. [19] It has the designations WD 2226-210, PHL 287, and GJ 9785. [ 1 ] The star has a radius of 0.025 solar radii (17,000 km), a mass of 0.678 M ☉ , a temperature of 120,000 Kelvin and has an apparent magnitude of 13.5.

  3. File:NGC7293 (2004).jpg - Wikipedia

    en.wikipedia.org/wiki/File:NGC7293_(2004).jpg

    English: The Helix Nebula: a Gaseous Envelope Expelled By a Dying Star About the Object. Object Name: Helix Nebula, NGC 7293 or "The Eye of God" Object Description: Planetary Nebula; Position (J2000): R.A. 22h 29m 48.20s; Dec. -20° 49' 26.0" Constellation: Aquarius; Distance: About 690 light-years (213 parsecs)

  4. File:Zooming into the Helix Nebula.ogv - Wikipedia

    en.wikipedia.org/wiki/File:Zooming_into_the...

    As we close in we can see the faint ring shape of the Helix Nebula (NGC 7293), one of the closest planetary nebulae to the Earth. In the final sequence we see a new image of the Helix taken in infrared light with the VISTA telescope at ESO's Paranal Observatory in Chile.

  5. File:An infrared-visible light comparison of views of the ...

    en.wikipedia.org/wiki/File:An_infrared-visible...

    English: This video compares a new view of the Helix Nebula acquired with the VISTA telescope in infrared light with the more familiar view in visible light from the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory. The infrared vision of VISTA reveals strands of cold nebular gas that are mostly obscured in visible light images of the ...

  6. Cometary knot - Wikipedia

    en.wikipedia.org/wiki/Cometary_knot

    Cometary knots in the Helix Nebula. Cometary knots, also referred as globules, are structures observed in several nearby planetary nebulae (PNe), including the Helix Nebula (NGC 7293), the Ring Nebula (NGC 6720), the Dumbbell Nebula (NGC 6853), the Eskimo Nebula (NGC 2392), and the Retina Nebula (IC 4406).

  7. File : Comets Kick up Dust in Helix Nebula (PIA09178).jpg

    en.wikipedia.org/wiki/File:Comets_Kick_up_Dust_in...

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  8. List of largest nebulae - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_nebulae

    Diffuse Nebula: The closest major star formation region to Earth. [49] Crab Nebula: 11 ly (3.4 pc) [50] Supernova remnant: The remnant of a supernova that occurred in 1054 AD. [51] Bubble Nebula: 6 [52]-10 [53] [54] ly (1.84-3.066 pc) Emission nebula: Helix Nebula: 5.74 ly (1.76 pc) [55] Emission nebula: Eightburst Nebula: 0.8 ly (0.2453 pc ...

  9. Caldwell catalogue - Wikipedia

    en.wikipedia.org/wiki/Caldwell_catalogue

    Helix Nebula: Planetary Nebula: 0.522 Aquarius: 7.3 C64 NGC 2362: Tau Canis Majoris Cluster: Open Cluster and Nebula: 5.1 Canis Major: 4.1 C65 NGC 253: Sculptor Galaxy: Spiral Galaxy: 9,800 Sculptor: 7.1 C66 NGC 5694 Globular Cluster: 113 Hydra: 10.2 C67 NGC 1097 Barred Spiral Galaxy: 47,000 Fornax: 9.3 C68 NGC 6729: R CrA Nebula: Nebula: 0.424 ...