Technical Data
|
Optics |
Takahashi FS152 apo
refractor
|
Focal Lenght |
1216 mm (direct focus, no flattener)
|
Focal Ratio |
f/8
|
Exposure Time |
For each image, respectively: 1h30min, 1h30min (single
exp of 10 min)
|
CCD |
Canon EOS 5D
with Baader filter
|
Sensitivity |
800 ISO
|
Location |
Omega Cen: Tivoli Farm (Namibia) at 1350 m height; M13: Bogli (PC, Italian Apenines) at 1350 m
|
Date
|
Omega Cen: 28 August 2011; M13: 2010
|
Mount |
Omega Cen: Fornax 51; M13: 10Micron GM2000
|
Tracking |
SXV-H5 on a Vixen 80/640 apo refractor
|
Temperature
and humidity |
T= 15 °C,
RH= 27 %
|
Sky brightness at zenith (with SQM-L) |
21.6 mag/arcsec^2
|
Notes |
This image is a collaborative effort of the Namibia 2011 expedition.
Processing: Lorenzo Comolli. Images by: Lorenzo Comolli, Luigi Fontana,
Giosuè Ghioldi, Emmanuele Sordini.
M13 was imaged by Giosuè Ghioldi with the same telescope and camera from the Northern hemisphere.
|