Technical Data
|
Optics |
Pentax 75 apo refractor
|
Focal Length
|
500 mm
|
Focal
Ratio |
f/6.7
|
Exposure
Time |
12 h 10 min
(single exp of 10 min), 6 panes mosaic
|
Camera |
Canon EOS 5D
with Baader filter
|
Location |
Tivoli Farm (Namibia) at 1350 m height
|
Date
|
26 August - 1 September, 2011
|
Mount |
Kenko NES
|
Tracking |
Lodestar at
100 mm focal length
|
Temperature
and
humidity |
T= 4 to 10 °C, RH=25 to 50%
|
Sky brightness at
zenith (with SQM-L) |
21.8 to 22.2 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.
|