|
Object |
IC4628 |
|
Info |
IC4628
is located in the curve of the tail of the constellation Scorpius. This
image only shows part there of this massive emission nebula. Emission
nebulas are created when hot young stars radiate a nebulous area with
ultraviolet light that strips electrons from atoms. These electrons then
reattach to the atoms, producing the bright nebulosity. IC4628 is
also known as Gum 56 after Colin Gum, an Australian astronomer and
is commonly called The Prawn Nebula. |
|
Date |
Lum: 10-11/
04/ 2010 Ha:15/ 04/2010 & RGB 11/04/ 2010 |
|
Location |
BayTop
Observatory- Streaky Bay South Australia |
|
Instrument |
Home built 10" Newtonian (Bob
Royce primary) with
MPCC coma corrector.
System working @ native
f4/ 1016 FL 1.35
arcsec/pixel- FOV 23.3x29.4 |
|
Mount |
Celestron CI700 controlled by the
SiTech servo Goto Control System
with Pittman 8000 series motors.
Pulley and belt system |
|
Camera (CCD) |
Starlight
Xpress HX916 monochrome with Starlight
Xpress USB filter wheel. |
|
Exposures |
Lum:152'
Ha:112' R:40' G:40' B:40' approx 6.4 hours [all 4'
sub exposures all unbinned] No dark frames
removed. |
|
Guiding |
Starlight
Xpress Hx516 & ED80 refractor. Pulse guided via ASCOM. |
|
Filters |
Astronomik
clear/ RGB Type II Filter
set |
|
Notes/ Conditions |
Conditions-Since we have had rain in the last few days,
the low pressure has cleaned the sky. While not perfect, the seeing and
transparency was fair to average. Ha blended 50% to red channel. |
