afesan.es ) Molecular
Cloud MBM 25 ( Lynx) * February 2017 * ASA N12
astrograph (f/3,6 1081mm) * DDM85 mount * G3 16200
* LRGB Baader filters * All subframes unguided -
acquired with Sequence & Autoslew * L: 384min
R:216min G:156 min B:232min *
MBM 25 is a very diffuse molecular cloud that covers
practically the whole image, extending in the
constellation of the Lynx.
These molecular clouds, also referred to as flow
nebulae or galactic cirrus, are made up of gigantic
dust and gas clouds of very low density
(estimated to be between 25-50 particles per cubic
centimeter), basically H and CO. They belong to our
own galaxy but are located in high latitudes
that is, above and below the main disk or
galactic plane of the Milky Way. They are at
distances of the order of thousands or tens of
thousands of light years,
much closer that distant galaxies that glows in the
background (in this case, literally hundreds of them
in the background) and whose vision and light
filter us by getting in our visual. The dust
disperses the blue light and reinforces a broad
spectrum of red light, known effect known as "ERE
"(Extended Red Emission).
This sensibly attenuates blue glimpses and
enhances the reds in visual images.
These structures were first detected in 1984 by the
infrared IRAS satellite and later
studied in depth by Magnani, Blitz and Mundy
constituting the MBM catalog.