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Dust and Gas in the Rho Ophiuchi Cloud Complex | by Martin_Heigan
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Dust and Gas in the Rho Ophiuchi Cloud Complex

About this image

A widefield image of a section of the gas and dust of the beautiful large Rho Ophiuchi cloud complex. Rho Ophiuchi is a dark nebula of gas and dust located 1° south of the star ρ Ophiuchi in the constellation Ophiuchus (close to the red Supergiant star Antares).

 

Gear:

William Optics Star 71mm f/4.9 Imaging APO Refractor Telescope.

William Optics 50mm Finder Scope.

Garmin SkySync GPS Accessory.

Orion Mini 50mm Guide Scope.

Orion StarShoot Autoguider.

Celestron AVX Mount.

QHYCCD PoleMaster.

Celestron StarSense.

Canon 60Da DSLR.

Astronomik Clip-In CLS Light Pollution Filter.

 

Tech:

Guiding in Open PHD 2.6.3.

Image acquisition in Sequence Generator Pro.

Lights/Subs:

18 x 180 sec.

ISO 3200 RGB (CLA FITS)

Calibration Frames:

30 x Bias/Offset.

30 x Darks.

30 x Flats & Dark Flats.

 

Image Acquisition:

Sequence Generator Pro with the Mosaic and Framing Wizard.

 

Plate Solving:

Astrometry.net ANSVR Solver via SGP.

 

Processing:

Pre-Processing and Linear workflow in PixInsight,

and finished in Photoshop.

 

Astrometry Info:

Annotated Sky Chart for this image.

Center RA, Dec: 248.666, -24.411

Center RA, hms: 16h 34m 39.831s

Center Dec, dms: -24° 24' 40.276"

Size: 3.31 x 1.86 deg

Radius: 1.898 deg

Pixel scale: 7.45 arcsec/pixel

Orientation: Up is 90.5 degrees E of N

View this image in the World Wide Telescope.

 

Martin

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Taken on April 29, 2017