29 May 2012

The Witch''s Broom Nebula(NGC 6960)

The Witch's Broom Nebula(NGC 6960)

-Telescope: William Optics FLT 110 modified
-Mount: Skywatcher EQ6 Skyscan Pro with EQMod & EQDir
-CCD: Qhy2 Pro at -5c
-Guiding: TS finder 8x50 & Meade DSI 1
-Location:Manor Observatory at Piraeus,GR
-Ha 5nm Astrodon(bin 1x1)
-OIII 5nm Astrodon(bin 1x1)
-LRGB Baader(1x1)
-Total exposure: 6 hours & 45 minutes.

Information about 6960

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.

The Hubble Space Telescope captured several images of the nebula. The analysis of the emissions from the nebula indicate the presence of oxygen, sulfur, and hydrogen. This is also one of the largest, brightest features in the x-ray sky.