 |
| Click on image for large
version |
| Subject |
M27 |
| Date |
15th July 2006 |
| Telescope
or Lens |
Toscano 8 inch RCT |
| Mount
|
Paramount ME |
| Camera |
ST2000XM |
| Filters |
CS Ha 10nm and OIII 4.5nm |
| Total Exposures |
L |
180 min |
R |
180 min |
G |
90 min |
B |
90 min |
| Sub exposure |
9 x 20 min |
9 x 20min |
9 x 10min |
9 x 10min |
| Binning |
Ha Luminance and Red 1x1 OIII Green
and Blue 2x2 |
| Field
of view and resolution |
Approx 22 x 16 Arcminute. 0.83 Arcsec
/ Pixel |
|
| Comments |
|
| This is the first
real image with the Toscano 8 inch SCT. It has taken a while to sort out
a few issues with getting my TCFS focuser square to the optical axis. It
is very close now but not perfect. I would stress this is not a problem
with the scope but with the focuser, as the original focuser that came with
the scope did not suffer from the same issue. I am quite pleased with the
image although there is a bit of a guiding issue as I was still in the process
of sorting out the tracking of the paramount at the longer focal length.
No problems just need a bit more care and attention to detail. Ha was used
as luminance and red while OIII was used as blue and green. |
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