|
Object |
NGC
6589-90 |
|
Info |
This combination of reflection
and emission nebula lies just south of the Small Sagitarius star cloud. A
vast rich cloud which obstructs our view to the centre of our
galaxy, the Milky Way. The blue reflective nebulosity of NGC 6589
& 6590 is produced by bright stars buried
within dust and gas. IC 1284's
nebulosity emits red hydrogen. The magenta hew is due to the mix of the
two. |
|
Date |
6 / 6/ 05 |
|
Location |
BayTop
Observatory- Streaky Bay South Australia |
|
Instrument |
Orion ED80
refractor working @ f7.5 |
|
Mount |
Vixen 'GPDX'
controlled by a Mel Bartels Goto System |
|
Camera (CCD) |
Starlight
Xpress HX516 monochrome with Hm, made filter slider |
|
Exposures |
L:
95' R:30' G:30' B:30' (5' sub exposures all
unbinned) Dark frames removed. Extinction factors
applied . |
|
Guiding |
Sky
Watcher-f5 ST Refractor & a Meade LPI imager attached with
main scope on a home made accessory plate |
|
Filters |
Astronomik
Type 2 CL-.RGB set |
|
Notes/ Conditions |
Conditions- Very warm for winter. 14deg C. The evening
started out reasonable but deteriorated as has been the case in the last 2
months. As I was taking the colour frames, high cloud moved
in muting the blue channel. Object @ aprox.70deg. Both the rgb sets and lum have been 'drizzle combined' in
IRIS to improve resolution and eliminate artifacts. Coefficient resampled
to 120%.
|
