Contains: IC 4635, IC 4633
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IC4633 and Mandel-Wilson 9

Technical card

Imaging telescope or lens: Astro-Physics AP140EDF

Imaging camera: STL-11000M

Mount: Astro-Physics AP900

Guiding camera: Lodestar

Focal reducer: Astro-Physics 27TVPH

Software: Pleaides Astrophoto PixInsight 1.8DC-3 Dreams ACPMaxim DL

Resolution: 3530x3040

Astrodon B Gen.2 E-series: 16x600" bin 1x1
Astrodon G Gen.2 E-series: 13x600" bin 1x1
Astrodon L Gen.2 E-series: 28x1200" bin 1x1
Astrodon R Gen.2 E-series: 11x600" bin 1x1

Integration: 16.0 hours job: 1719713

RA center: 259.613 degrees

DEC center: -77.469 degrees

Pixel scale: 1.415 arcsec/pixel

Orientation: 91.696 degrees

Field radius: 0.916 degrees


The small face-on spiral IC4633 surrounded by the integrated flux nebula Mandel-Wilson 9. A difficult, circumpolar southern target in Apus.



Rick Stevenson

Sky plot

Sky plot


IC4633 and Mandel-Wilson 9, 

    Rick Stevenson