Astro-Physics RH 305
Annual Subscription (Payment Options Available)
Camera: FLI ML16200
Filter: Astrodon LRGBSHO 5nm
Focuser: FLI Atlas
Focal Length: 1160mm
Focal Ratio: f/3.8
Pixel Size: 6μm
Image Scale: 1.6”
Mount: A-P 1600 GTO
Location: Deep Sky West, New Mexico
The Astro-Physics RH-305 is an unusual system which is what makes it interesting to us and our members. According to Astro-Physics the 305’s design is a modification of the original Riccardi-Honders which “features diffraction-limited performance over a huge 3-degree field, which is ideal for capturing large faint nebulae over a wide wavelength range.” It has medium long focal length of 1160 mm along with an extremely fast f/3.8 focal ratio. We’ve paired it with a large format 16803 CCD. The deep-welled 16803 (100K, 9 microns) working at f/3.8 makes this system a light-gathering workhorse. Medium wide-field imagers seeking a suitable imaging platform will be satisfied with this option.