Rho Ophiuchi cloud complex

This is an object I imaged three times over the years, each time during a stay at the Tivoli astrofarm in Namibia.

The Rho Ophiuchi cloud complex is centered 1° south of the star ρ Ophiuchi.

The last time I imaged this region in 2017. Data calibration, registration and the final processing was done with PixInsight. The result was as follows:

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The images were taken with the following equipment:

• Date 2017
• Location: Tivoli, Namibia
• Telescope: Canon 24-105mm lens
• Focal length [mm]: 105
• Focal ratio: 4
• Mount: Astrophysics AP1200
• Camera: Canon 500 Da
• Filter: OSC
• Exposure time [min]: 408
• Resolution: 9.57″/px

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The second time I imaged this region in 2015. Data calibration, registration and the final processing was done with PixInsight. The result was as follows:

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The images were taken with the following equipment:

• Date 2015
• Location: Tivoli, Namibia
• Telescope: Canon 200mm lens
• Focal length [mm]: 200
• Focal ratio: 4
• Mount: Losmandy G11
• Camera: Moravian FW8300
• Filter: R:G:B
• Exposure time [min]: 120:120:120
• Resolution: 5.73″/px

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The first time I imaged this region in 2008. Data calibration and registration was done with DeepSkyStacker and the final processing was done with PixInsight. The result was as follows:

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The images were taken with the following equipment:

• Date 2008
• Location: Tivoli, Namibia
• Telescope: Tamron 28-300 mmm lens
• Focal length [mm]: 70
• Focal ratio: 7.1
• Mount: Vixen Atlux
• Camera: Canon 300 Da
• Filter: OSC
• Exposure time [min]: 80
• Resolution: 23.74″/px

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