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NEBULAE
by members of the Wells & Mendip Astronomers

Nebulae are produced by gas and dust lying near the hottest stars. Dust can reflect the starlight producing a reflection nebula, or it can hide the light from stars to form a dark nebula. Gas fluoresces due to its high temperature or by excitation in the intense UV light from the star, producing an emission nebula. The origin of the gas gives rise to some specific types of emission nebulae such as planetary nebulae (gas thrown off by dying, lower mass stars exposing a hot white dwarf) and supernova remnants (rapidly expanding hot gas ejected by a supernova explosion). Star-forming regions are frequently visible as large diffuse nebulae containing both gas and dust.
Contributors:
Hugh Allen (200mm Meade LX90 telescope, Meade DSI II colour camera. Spectra: Alpy 600 spectroscope and Atik 314L camera)
Richard Hook (100mm Skywatcher Esprit telescope, Nikon D3200 camera)
Ian Humphreys (Televue NP101mm and 405mm Orion Optics telescopes, Canon 1100D and Atik 11000 Mono (LRGB filters) cameras
Nick Perkins (William Optics RedCat51 Triplet Apochromatic Refractor, ZWO ASI1600MM Pro camera + 7nm Narrowband Filters)
Pete Richardson (William Optics ZS80mm APO telescope, QSI683WSG camera)
Fred and Ed Vanner (Sky-Watcher Skymax 150 Pro or Esprit 80ED Pro telescope, ZWO ASI183MC or MM camera)

Send contributions to: allenhugh10@gmail.com or
wellsmendipastro@gmail.com

M1
Crab Nebula (supernova remnant, distance approx.  6500 ly)

M8
Lagoon Nebula (star forming region, distance 4100 ly)

M16
Eagle Nebula (open cluster and star forming region, distance 5700 ly)


M17
Swan Nebula (star forming region, distance approx. 5500 ly)


M20
Triffid Nebula (star forming region, distance 4100 ly)


M27 Dumbbell Planetary Nebula (distance approx. 1300 ly)




M42
Orion Nebula (diffuse nebula and star forming region, distance 1344 ly)


M43
Star-forming nebula (above Orion Nebula, distance 1600 ly)


M57
The Ring Nebula (planetary nebula, distance 2570 ly)


M78
Reflection nebula (distance 1350 ly)


M97
The Owl Nebula (planetary nebula, distance 2000 ly)

Caldwell 49
Rosette Nebula, an emission nebula illuminated by the hottest stars in the associated open cluster NGC 2244 (distance   5200 ly)


NGC 1499
California Nebula


NGC2024

Flame Nebula (emission nebula crossed by dark dust lanes) with the Horsehead Nebula and the bright star Alnitak, the leftmost star in Orion's Belt

NGC 6888
The Crescent Nebula (emission nebula formed around the Wolf-Rayet star WR136)


NGC 6960
Witch's Broom Nebula (supernova remnant)


NGC7000
North America Nebula
(emission nebula)

NGC7023
Iris Nebula
(reflection nebula from the light of the central Herbig Ae/Be protostar HD 200775)


IC 405
Flaming Star Nebula


IC 1805
Heart Nebula


IC 1848
Soul Nebula


Sh 2-103
Cygnus loop
(supernova remnant)




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  • Home
  • About Us
  • Coming up...
  • The Gallery
    • Messier Objects
    • Nebulae
    • Star Clusters
    • Galaxies
    • Solar system
  • ONLINE ASTRO
  • Blog
  • ARCHIVE
  • Shop
  • Members
    • Mark Woodland Members Page
    • Chris Starr Members Page
  • Contact Us
  • Links