NGC 7293 Helix Nebula
 
(c) Copyright 2003-2012 - All rights reserved
   
Telescope: Takahashi BRC-250, 1260 mm, F/5
CCD Camera: SBIG ST-10XME / CFW-8
Mount: German equatorial mount Astro-Physics 1200 GTO
Integration: LRGB: 70:20:20:20 in autoguida a -20
Date / Location / Sky: 30 Jul 2005 Sicily, Mt. Soro - Nebrodi Mounts, 1.800 m. s.l.
Medium seeing Medium transparency
Software: MaxIm-DL, CCDSoft, Registar, PhotoShop
Publications

Dizionario di Astronomia - Ed. Gremese - November 2006 - Cover

RAI Educational 2 / RAI 3 Nazionale 22 September 2005, "A scuola di stelle"