|
| |
|
|
NGC 6726/27 – a star formation near the star R Coronae
Australis
|
|
Description of object:
The star forming region in the constellation
Southern Crown (lat. Corona Australis) is one of the most interesting and
beautiful regions in the sky. The brightest young stars are responsible for the
blue reflection nebulae. In the dark nebulae further young stars are hidden,
which can be detected, e.g., in infrared images. These young stars eject gas at
a high speed (jets) in the direction of their rotation axis. The jets collide
with the surrounding material of the nebula and build a small emission nebula,
called Herbig-Haro objects.
The objects are called
after the two astronomers, George Herbig and Guillermo Haro, who recognized the
connection between these small nebulae and young stars. The visible Herbig-Haro
objects are marked with HH in the labeled version. Partially, these objects
only appear as extremely weak reddish areas in the surrounding dark nebula.
|
 |
| » The image right show some labeled regions
Click here or the thumbnail to load a larger image
|
|
|
The
rays at the right edge of the image probably stem from a reflexion of the
bright star e Coronae Australis at the Reducer.
Further readings: Wang,
E.P. et al. (2004), The Astrophysical Journal, V. 617, S. 1191:
Optical Outflows in the R Coronae Australis Molecular
Cloud |
 |
| The
right image shows a comparison of the size of the Moon.
Please click here or the thumbnail to see a lager
version.. |
|
| |
|
|
|
| |
