Hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  Double cluster  ·  NGC 869  ·  NGC 884  ·  The star 7Per
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h + χ Persei, NGC869 und NGC884, 


            Simon Schweizer
h + χ Persei, NGC869 und NGC884
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h + χ Persei, NGC869 und NGC884

Technical card

Imaging telescopes or lenses: Sky-Watcher Quattro 8" f/4 Carbon (modded)

Imaging cameras: Moravian Instruments G2-8300 with external FW

Mounts: SkyWatcher NEQ6 VTSB3

Guiding telescopes or lenses: ICS Galaxy 8x50 Finder

Software: Mischa Schirmer e.a. Theli

Filters: Baader Planetarium L 50.4 mm  ·  Baader Planetarium R 50.4 mm  ·  Baader Planetarium B 50.4 mm  ·  Baader Planetarium G 50.4 mm

Accessory: Pal Gyulai GPU coma corrector  ·  MGEN

Dates:Dec. 28, 2014

Baader Planetarium B 50.4 mm: 15x60" -35C
Baader Planetarium G 50.4 mm: 14x60" -35C
Baader Planetarium L 50.4 mm: 30x120" -35C
Baader Planetarium R 50.4 mm: 15x60" -35C

Integration: 1.7 hours

Darks: ~12

Flats: ~20

Bias: ~30

Avg. Moon age: 7.08 days

Avg. Moon phase: 46.80%

Bortle Dark-Sky Scale: 4.00

Temperature: -7.00

Basic astrometry details

Astrometry.net job: 485302

RA center: 2h 20' 29"

DEC center: +57° 8' 6"

Pixel scale: 1.390 arcsec/pixel

Orientation: 0.272 degrees

Field radius: 0.769 degrees

Resolution: 620x413


Der Doppelsternhaufen h und χ


Sky plot

Sky plot


h + χ Persei, NGC869 und NGC884, 


            Simon Schweizer