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→Properties and structure: Expand on different regions
The nebula is large and is commonly considered to be composed of three regions, the Eastern Veil nebula, the West Veil nebula and Fleming’s Triangle (sometimes called Pickering’s Triangle).<ref name=constellation-guide/> The regions and features of the nebula have numerous designations in the [[New General Catalogue]] including NGC 6960, NGC 6992, NGC 6995, NGC 6974, and NGC 6979. Additionally the southern region of the Eastern Veil nebula has the designation IC 1340.
The nebula is large and is commonly considered to be composed of three regions, the Eastern Veil nebula, the West Veil nebula and Fleming’s Triangle (sometimes called Pickering’s Triangle).<ref name=constellation-guide/> The regions and features of the nebula have numerous designations in the [[New General Catalogue]] including NGC 6960, NGC 6992, NGC 6995, NGC 6974, and NGC 6979. Additionally the southern region of the Eastern Veil nebula has the designation IC 1340.
===Eastern Veil nebula===
Designated NGC 6992 and Caldwell 33, the Eastern Veil nebula is comprised of several interwoven strands of glowing gas.<ref name=skyandtelescope/> The luminous arc of gas and dust at the south of the Eastern Veil nebula is designated NGC 6995 and together with NGC 6992 is sometimes referred to as the Network nebula. The arc is over one degree long.<ref name=skyandtelescope/>
===Western Veil nebula===
The Western Veil nebula (NGC 6960) is also known as the Witch's Broom. This region of the Veil nebula is very easy to locate as it lies behind the [[star]] 52 Cygni which can be observed without [[binoculars]]. The region spans a distance of 35 ly.<ref name=constellation-guide/> Like the Veil nebula as a whole, this region has many names including: Filamentary Nebula, Finger of God Nebula, Lace-work Nebula as well as Caldwell 34.
===Flemning's Triangle===
Also known as Pickering’s Triangle, Flemning's Triangle can be found at in the northern area of the Veil nebula, where it runs from the top to the centre region of the nebula. Unsurprisingly, it has a roughly triangular shape and contains numerous "knots" where the gas is brighter and has a complex structure. The southernmost knot is an extreme source of x-rays. Alternative names for the region include: Pickering’s Triangular Wisp or Pickering’s Wedge.
==References==
==References==