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Star Analyzer 100 or 200?

Acquisition Spectroscopy Deep Sky
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Fernando avatar
Fernando avatar
Hello:

I have some questions about wich star analyzer prism should i use. This is my equipment:

- QHY 294C Pro
- GSO Newton 200/800 F4
- ZWO Filter Drawer
- Sharpstar MPCC Coma Corrector 1x
- ZWO Off Axis Guider
 Could you please indicate wich star analyzer y suitable for my equipment? I attached a diagram with my equipment and the dimensions of each one. Thanks in advance!
andrea tasselli avatar
andrea tasselli avatar
Let's say right off the bat that an OSC camera isn't very (or at all) suitable for spectroscopy although with some effort it can be made to work. This set aside the choice depends on the efficiency you want to archive and I'd also recommend that the star analyser, whatever it is, is paired with a prism. On balance, if you're starting out, I'd go with the 100//mm grating and see how you doing with it. I'd also recommend the following readings:

Note technique (astrosurf.com)