Guide Scope Orientation...

[Ian McCallum]

I've just dipped my toe into the world of astrophotography, but need some advice please.

I've connected a ZWO ASI 120MM mini camera to a SW 9x50 finderscope, with an adapter. This is going to be my guide scope.

The view through ZWO is 90 degrees different from what my main telescope shows. I'm sure I can correct this by rotating the guide scope body.

If I don't correct this, would it affect the guiding accuracy through PHD2? 🤔

[dannybgoode]

You'll be pleased to know it doesn't at all. 

PHD is just interested in the star and not its orientation

[AstroNebulee]

21 minutes ago, Ian McCallum said:

I've just dipped my toe into the world of astrophotography, but need some advice please.

I've connected a ZWO ASI 120MM mini camera to a SW 9x50 finderscope, with an adapter. This is going to be my guide scope.

The view through ZWO is 90 degrees different from what my main telescope shows. I'm sure I can correct this by rotating the guide scope body.

If I don't correct this, would it affect the guiding accuracy through PHD2? 🤔

As @dannybgoode says, it won't affect it in the slightest. I'm a bit ocd so my zwo 30mm guide scope and 120mc-s matches the same view as my main scope but that's my ocd haha. As long as the guidescope has a star to guide on its all cool. 

Edited January 10, 2022 by AstroNebulee

[dannybgoode]

6 minutes ago, AstroNebulee said:

'm a bit ocd so my zwo 30mm guide scope and 120mc-s matches the same view as my main scope

Do you reorientate if you have to rotate the main camera for any reason or do you avoid that at all costs?   

[AstroNebulee]

1 minute ago, dannybgoode said:

Do you reorientate if you have to rotate the main camera for any reason or do you avoid that at all costs?   

I try to avoid at all costs 😁