CCD
Acquisition: Starlight Xpress SXV-H9
CCD Autoguide: SBIG ST 7 XME 402 E
Temperature of exercise -13°C
Optic
configuration of the telescope:
Refractor
Skywatcher
120-900 mm. ED PRO + focal reducer Meade f 6,3
( focal equivalent and inclusive draught 630 mm.)
frammed field 58 x 43 arc minutes
German
Equatorial
Mount:
Gemini
G 41 Observatory Plus and FS 2 system control
Luminance
integration time:
22 frame from 600" each with filter Astronomik
H-alfa (13 nm)
Integration color time:
R
11x600"
G 5x600" B
3x600"
Software
used for the acquisition and the elaboration:
CCDSoft, Photoshop CS, Astroart,
Date
of acquisition:
2006
Zone of acquisition:
Fixed posting of San Giuliano P.no ( Piacenza ) Italy
Author Astroimager:
Davide Romanini -
ASTRODAVID -
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Name:
NGC 6888
Popular name: Crescent Nebula
Type of object: Nebula
or suspect Planetary Nebula
Magnitude: 10.0
Apparent size: 20.0'x10.0'
Position
(epoch of date)
Right ascension: 20h 12m 22s
Declination:
+38° 22' 40"
Constellation: Cygnus
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