||IC 434 (top), B33 (Horsehead Nebula),
NGC 2023 (bottom left)
||05 h 41 min -02° 28'
||The Horsehead nebula (B33) is
actually a dark interstellar cloud in our Milky Way that obscures part of
a bright red emission nebula. This is IC 434 which is excited by bright
Alnitak (Zeta Ori) just outside the field on the left (north). The blue
reflection nebula NGC 2023 shines at lower left. Reflections from
Sigma Orionis were incorporated in the image layout as 'cosmic spotlights'
to highlight the two main objects in the frame.
Click on the image for a higher resolution view and here
for a close-up of the Horsehead in native resolution. The field of view is approx. 25' x 37'.
Link to an earlier image
with a 6" refractor.
||NRGB 220:75:75:75 min @ -25°C,
RGB binned 2x2
||SBIG STL-11000 selfguided, Astronomik
Type II RGB Filterset
||RCOS 14.5" Ritchey-Chrétien
||MaxIm DL/CCD, Sigma Pre
Beta 11, Registar, Adobe
|Location - Date - Time
||San Esteban (Chile) - 30/31Oct2005 -
||Transparency 7/10, Seeing
7/10, Temperature +11°C