NGC 6992 – Eastern Veil Nebula – Ha

5 annifa 0 1949

Descrizione – Description

La Nebulosa Velo (nota anche con le sigle del Catalogo Caldwell C 33 e C 34) è una vasta nebulosa diffusa visibile nella parte sudorientale della costellazione del Cigno. La distanza della nebulosa non è nota con certezza; i dati del Far Ultraviolet Spectroscopic Explorer (FUSE) indicano una distanza di circa 1.470 anni luce.

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop (radio source W78, or Sharpless 103), a large but relatively faint supernova remnant. The source supernova exploded some 5,000 to 8,000 years ago, and the remnants have since expanded to cover an area roughly 3 degrees in diameter (about 6 times the diameter, or 36 times the area, of the full moon). The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years. [wikipedia]

Technical data
TelescopeTakahashi FSQ106ED
Focal lenght530mm
CameraMoravian G2-4000
IntegrationHa 8*900"
CoordinatesRA 20h 45m 38.0s - DEC +30° 42′ 30″
Field size2.24×2.24 deg
Shooting date12 Aug 2013

Sky map

easternveil_map
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