These two blue Reflection Nebula,both divided by a dark cloud in front of them,is labeled Cederblad 51.These nebula are embedded in the large emission nebula SFO 17 (red).Star formation is taking place in some Herbig-Haro objects nearby,but outside of our picture.
These nebula landscapes are situated between the well known Orion stars Beteigeuze and Bellatrix.
A larger region of these nebula could be seen HERE in a picture of Bernhard Hubl (Austria).
position (epoch 2000):
Ra.: 05h 32m 00.0s
L = 21 x 20min
RGB= 7 x 20min each
Halpha = 11 x 40min
a total of 21.33hours
80cm f/7 AstroOptik Keller corrected cassegrain
FLI Proline 16803 Astrodon LRGB GenII filters
Prompt 7 CTIO/UNC Chile,remote controlled
image processing: Bernd Flach-Wilken
here you see the blue Reflection Nebula Ced 51 in a sqaured 21´arc.min. sized FOV.
The dark reversed-Y-shaped object at the bottom is labeled LDN1584.
For full resolution click HERE
a more detailed view of Ced 51 is here: