Technical Data
|
Optics |
TEC 140
|
Focal Length
|
1011 mm
|
Focal
Ratio |
f/7.2
|
Exposure
Time |
14 min
(7x120 s) with luminance filter (color version: LRGB with addition of 2x60s for each color in binning 2x2)
|
CCD |
SBIG STL-11000
|
Location |
Tradate
(VA), Po valley, Italy at 300 m height
|
Date
|
21 March 2013, 18.56 UT
|
Mount |
Gemini
G-41
|
Tracking |
Lodestar
on an 80mm f/5 refractor, guiding on the comet
|
Temperature
and
humidity |
T= 8°C, RH=50%
|
Sky brightness at
zenith (with SQM-L) |
17.5 mag/arcsec^2 (Moon in the sky)
|
Notes |
Color frames were gathered when the comet was setting and so they are not of good quality.
Selected for APOD of March 30, 2013!
|