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Contains:  7 chi Per, Double cluster, Misam, NGC 869, NGC 884, NGC869, NGC884, The star 7Per
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Double Cluster h+chi, 


            Jürgen Kemmerer
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Double Cluster h+chi

Imaging telescopes or lenses: Liebscher 12" f/4 Newton

Imaging cameras: ATIK 11002m

Mounts: Liebscher schwere Montierung

Guiding cameras: The Imaging Source DMK 21AU04.AS

Software: Adobe Photoshop CS5

Accessory: ASA 4"-Korrektor

Dates:Oct. 2, 2011

B: 10x180"
G: 10x180"
L: 20x180"
R: 10x180"

Integration: 2.5 hours

Avg. Moon age: 5.70 days

Avg. Moon phase: 32.46% job: 280338

RA center: 2h 20' 33"

DEC center: +57° 7' 27"

Pixel scale: 2.440 arcsec/pixel

Orientation: -178.924 degrees

Field radius: 0.907 degrees

Resolution: 2249x1449



Jürgen Kemmerer
License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


Double Cluster h+chi, 


            Jürgen Kemmerer