designed  by LluĂ­s Romero Ventura
 The Earth     astrosirius@astrosirius.org 
astrophotographysirius.com

IC 5146 THE COCOON NEBULA

Inside   the   Cocoon   Nebula   is   a   newly   developing cluster     of     stars.     Cataloged     as     IC     5146,     the beautiful    nebula    is    nearly    15    light-years    wide, located   some   4,000   light   years   away   toward   the northern    constellation    Cygnus.    Like    other    star forming    regions,    it    stands    out    in    red,    glowing, hydrogen    gas    excited    by    young,    hot    stars    and blue,   dust-reflected   starlight   at   the   edge   of   an otherwise   invisible   molecular   cloud.   In   fact,   the bright   star   near   the   center   of   this   nebula   is   likely only     a     few     hundred     thousand     years     old, powering    the    nebular    glow    as    it    clears    out    a cavity   in   the   molecular   cloud's   star   forming   dust and   gas.   This   exceptionally   deep   color   view   of the    Cocoon    Nebula    traces    tantalizing    features within      and      surrounding      the      dusty      stellar nursery.

Nebula

& Dust

IC 5146 THE COCOON NEBULA