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Which telescope is better for general space observation?

I'm allocating my first major research grant for equipment and am overwhelmed by the specifications. I need to observe both diffuse nebulae and planetary surfaces with enough fidelity for publishable data. The trade-offs between aperture, optical design, portability, and whether to invest in remote access to a professional facility are paralyzing my decision.

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By Rinku Answered 3 years ago

I've advised many students on this. First, abandon the idea of a single "best" telescope. I would recommend defining your primary science goal. For extragalactic work or faint nebulae, a fast Newtonian reflector with a large aperture (10"+), paired with a cooled CMOS camera, is a workhorse. For planetary science, a long-focal-length Maksutov-Cassegrain provides excellent contrast. However, the most critical factor is often your local seeing. Investing in a premium mount and a site with stable air often yields better data than a slightly larger telescope under poor skies. Don't overlook remote access to a darker site.

 

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