IC1396 detail, vdB142

A detail of the central part of IC 1396 nebula, in Cepheus. The dark nebula in the center is vdB142. This image is the first of a collaboration with Daniele Cipollina, using as luminance my H-alpha images from the Schmidt camera + ccd, and as color data Daniele's images from AP102 and Canon EOS 350D (modified). The two above are different elaborations from the same data: let us know which you prefer!

Technical Data
Optics L: Schmidt camera 400/300/615 (Zen optics)
AstroPhysics 105 EDT with original field flattner
Focal Lenght L: 615 mm
RGB: 661 mm
Focal Ratio L: f/2,0
RGB: f/6.3
Exposure Time L: total 4h30m. 27 frames of 10 min each
total 3h20m. 20 frames of 10 min each - 800 ISO
CCD L: a camera with Kaf-6303e
RGB: Canon EOS 350D (modified Hutech)
Sensor L: Kaf-6303e class 1
RGB: Canon cmos
Filters L: H-alpha 6nm Astronomik, selected for f/2
RGB: none
Sensor temperature
L: -30°C
RGB: ambient
Location L: Tradate (VA, in Pianura Padana, Italy) at 300m height
Pallavicino (AL, Val Borbera, Italy) - Rifugio Baita Piani di San Lorenzo at 1150m height
L: 21 october 2007
RGB: 19 september 2006
Mount L: Astrosystems fork mount
RGB: Marcon MB-50
Tracking L: Webcam Vesta Pro B/W on a 120mm f/13 refractor reduced at f/5
on a 90/1000 Vixen refractor
Temperature and humidity L: T=+12°C, RH=70%
T=+13°, RH=50%
Sky brightness at zenith (with SQM-L)L: 18.5 - 19.0 mag/arcsec^2
Notes Authors: Lorenzo Comolli (luminance) and Daniele Cipollina (colors)

HTML Editing and Publishing by Lorenzo Comolli. Email me at comolli@libero.it. Back to Main Page