|
Object |
NGC 5139-
Omega Centauri |
|
Info |
Omega
Centauri is the largest and brightest
globular cluster in the sky. So prominent that it was labeled as a star on
early charts. It appears at mag. 3.7 to the naked eye. It is noticeably
elliptical in shape and is as large as the full moon. Its brilliance and
large apparent size is due partly to its relative closeness being 17,000
l.y. making it one of the closest globular clusters to us. |
|
Date |
19 / 4/ 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:
20' R:8' G:8' B:8' (1' sub exposures all
unbinned) No dark frames removed |
|
Guiding |
none |
|
Filters |
Astronomik
Type 2's |
|
Notes/ Conditions |
Reasonable
weather conditions. Moon at 77% phase when first imaged.
This image was reprocessed on the 25/6/05. Both the rgb sets and lum have
been 'drizzle combined' coefficient resampled to 120% in IRIS. |
