SCOSCI
Affiliation
None
Wed, 11/17/2021 - 10:52
I have an off-axis guide scope that uses PHD2 software for guiding. A few questions:
A) Could I improve the tracking by adding an Active Optics device in the image train?
B) In what way does an AO improve OAG guiding?
C) Does the signal from OA going to the mount ever conflict with the signal from the OAG going to the mount?
D) Should I get a combination device like the one shown here?
Additional questions:
1) Is an OAG with AO (described above) better or worse than an On-Axis Guider (ONAG)?
2) Would the best combination be an AO device combined with an ONAG?
3) Which set of devices, described above, will produce the best possible tracking for Exoplanet work? Thanks,
Ed
Hi Ed,
My experience with an AO device and off-axis guider is that an on-axis guider (ONAG) in place of both is able to keep the science images centered within 1 pixel over a 4-5 hour observation session, assuming good polar alignment.
Dennis
Dennis, When you use the ONAG, do you use PHD2 as your guide software?
Yes, I use PHD2.
Ed
Thanks!
Ed