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Rolf's Astrophotography
  • An Astrophotography Journey!
  • Clusters
    • Globular Clusters
      • M13 – Hercules Cluster
    • Open Clusters
      • M45 – The Pleiades
  • Galaxies
    • Elliptical Galaxies
      • Markarian’s Chain with M84, M86, and M87
    • Irregular Galaxies
    • Spiral Galaxies
      • M31 – Andromeda Galaxy
      • M33 – Triangulum Galaxy
      • M51 – Whirlpool Galaxy
      • M64 – Black Eye Galaxy
      • M81 – Bodes Galaxy
      • NGC 4565 (C38) – Needle Galaxy
  • Nebulas
    • Dark Nebulas
      • IC 434 – Horsehead Nebula
    • Emission Nebulas
      • IC 1805 – Heart Nebula
      • IC 1848 – Soul Nebula
      • IC 405 – Flaming Star Nebula
      • M42 – Orion Nebula
      • NGC 2237 – Rosette Nebula
      • NGC 6888 – Crescent Nebula
      • NGC 7000 – North America Nebula
      • Sadr and the Gamma Cygni Nebula (IC 1318)
    • Planetary Nebulas
      • M27 – Dumbbell Nebula
      • M57 – Ring Nebula
    • Reflection Nebulas
      • M78
      • NGC 7023 – Iris Nebula
    • Supernova Remnants
      • M1 – Crab Nebula
  • Solar System
    • Comets
    • The Moon
    • Jupiter
    • Mars
    • Saturn
  • The Gear
    • APO107 Configuration Example
    • APO94 Configuration Example
    • MN190 Configuration Example
    • RC8″ Configuration Example
Rolf's Astrophotography

Emission Nebulas

IC 405 and IC 410

An emission nebula is a nebula formed of ionized gases that emit light of various wavelengths. The most common source of ionization is high-energy ultraviolet photons emitted from a nearby hot star. Among the several different types of emission nebulae are H II regions, in which star formation is taking place and young, massive stars are the source of the ionizing photons; and planetary nebulae, in which a dying star has thrown off its outer layers, with the exposed hot core then ionizing them.

IC 405, Flaming star nebula

IC 405, Flaming Star Nebula

Sadr (Gamma Cygni) and IC 1318

IC 1318, Gamma Cygni Nebula

IC1805, Heart nebula

IC 1805, Heart Nebula

IC 1848, Soul nebula

IC 1848, Soul Nebula

M42, Orion Nebula

M42, Orion Nebula

NGC 2237 Rosette nebula

NGC 2237, Rosette Nebula

NGC 6888, Crescent nebula

NGC 6888, Crescent Nebula

NGC 7000, North America Nebula

NGC 7000, North America Nebula

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