Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Horsehead nebula  ·  IC 434  ·  NGC 2023
IC434 Halpha, 


            Antonio Bonanno
IC434 Halpha
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IC434 Halpha

Technical card

Imaging telescopes or lenses: Vixen VC 200L

Imaging cameras: SBIG STF-8300M

Mounts: SkyWatcher EQ6 SynScan  ·  EQMOD Project EQMOD

Guiding telescopes or lenses: ORION 80 MM SHORT TUBE

Guiding cameras: ATIK GP Mono

Focal reducers: Vixen Tele compressor 0.71x

Software: Astroplace.net Astro Photography Tool v2.43  ·  PHD Guiding  ·  Astrotortilla  ·  PixInsight 1.8

Filters: Astronomik Ha 12nm (36mm)

Accessory: DIY USB EQDir  ·  DIY Arduino SGL Focuser

Dates:Dec. 12, 2015

Frames: 8x600" -10C

Integration: 1.3 hours

Darks: ~12

Bias: ~20

Avg. Moon age: 1.03 days

Avg. Moon phase: 1.20%

Bortle Dark-Sky Scale: 5.00

Temperature: 10.00

Basic astrometry details

Astrometry.net job: 895626

RA center: 5h 41' 0"

DEC center: -2° 24' 7"

Pixel scale: 0.836 arcsec/pixel

Orientation: 90.114 degrees

Field radius: 0.488 degrees

Resolution: 3352x2532

Locations: Home, Pomezia, Roma, Italy


I bought this second hand VISAC VC200L last year, after some inconclusive evidence I have set aside for some problems of focuser and collimation. I equipped with stepper focuser and collimated as the Vixen documentation . This is the first attempt, there is still a problem of flatness coupling caused by the focuser



  • IC434 Halpha, 


            Antonio Bonanno
  • Final
    IC434 Halpha, 


            Antonio Bonanno

Sky plot

Sky plot


IC434 Halpha, 


            Antonio Bonanno