The Norma nebula
This picture reveals part of the vast nebula complex NGC 6188
(RCW 108) situated in the
southern constellation
of Norma. The entire
nebula covers a large area of the sky more than 3°
wide while this image is less than 1°
wide. The bright star, at centre-right, is SAO 227049 (Visual Magnitude 5.6)
located in the star cluster NGC 6193.
| Image Details | 20070812 NGC6188. |
| Telescope |
Observatory mounted 12-inch f/5 Newtonian telescope
on Losmandy Gemini G-11 equatorial mount and custom pier. |
| Guiding | Autoguided with SBIG 402 on 4.5-inch f/9 guidescope using CCDSoft. |
| Camera |
Canon EOS 300D Digital ( Hα enabled ) focused with DSLR Focus. |
| Exposures | 28-minute exposure (7 x 4 min. sub-frames) @ ISO-400. |
| Filter/equipment |
2" Baader Multi-Purpose Coma Corrector
(MPCC). 2" Baader UV/IR Rejection Filter. |
| Sky Conditions | Seeing: 9/10. Wind: 0/10. Moisture: 2/10. |
| Ambient Temperature | 5.5°C |
| Image Processing | Image Stacking and Calibration in Iris, Final touching in Photoshop. |
(C) Copyright 2007 Paul Mayo (e-mail: paulm@skylab.com.au)