||NGC 7293, Helix Nebula,
||22 h 30 min - 20° 47'
||This remarkable object is the
nearest and largest (15'x12') planetary nebula as seen through amateur
instruments. The blue central star is mag 13.6 and only 500
lightyears away. Field of view is approx. 36 x 24 arcminutes with
north towards the one o'clock position. Click on the image above for a higher resolution version.
Here is an earlier version,
taken through a 6" refractor.
||(L+N)RGB (120+200):40:40:40 min @ -25°C,
N = no filter
||SBIG STL-11000 with Astronomik Type II LRGB Filterset,
||RCOS 14.5" Ritchey-Chrétien
||MaxIm DL/CCD, Sigma Pre
Beta 11, Adobe
|Location - Date - Time
||San Esteban (Chile) - LRGB 21Aug2004 -
05:00 UTC resp. N 4-5Oct2005 - 02:00 UTC
||Transparency 6/10, Seeing 5/10
resp 7/10, Temperature