|
Object |
Scorpius
Dark Cloud |
|
Info |
This dark nebula has no
designation as such, it lies at Ra 16h;
45": Dec -41*;
1200".
This dark nebulae is
very similar to the
cometary
globule CG 4, however the above object is
larger by far. Stella winds from the open cluster
Ngc 6231 give to its
'swept-back' form, shaped and in turn, slowly being eroded by the
radiation from these very luminous stars of that cluster (not pictured).
This is a very small part thereof the
RCW 113/ Gum55 nebula
and Scorpius OB1
region.
|
|
Date |
Lum 31/ 3/
08, 4/ 4 & 13th/ 4/ 08 & rgb 14/ 4/ 08 |
|
Location |
BayTop
Observatory- Streaky Bay South Australia |
|
Instrument |
Home built 10" Newtonian (Bob
Royce primary) and an Antares 1/20th wave
secondary with MPCC
coma corrector. System working
@ native f4/
1016 FL 1.35 arcsec/pixel- FOV
23.3x29.4 |
|
Mount |
Celestron CI700 controlled by a Mel
Bartels Goto Control System
with Vexta PK264m-01b motors with a pulley and belt system |
|
Camera (CCD) |
Starlight
Xpress HX916 monochrome CCD with Atik manual
filter wheel. |
|
Exposures |
L:
128' R:24' G:24' B:24' (4' sub exposures all
unbinned) No dark frames removed. |
|
Guiding |
Orion
80ED refractor F7.5 with a Starlight Xpress HX516
CCD. Mounted via a side by side accessory
plate. |
|
Filters |
Astronomik
typeII clr RGB filter set |
|
Notes/ Conditions |
Conditions- On all the nights taking lum and rgb channels
were poor. Cloud came in during the blue channel. |
