Drift Alignment Using PHD Guiding Software

[Alien]

Prosty myk w ustawieniu na GP za pomocą programu PHDGuiding.

http://njstargazer.org/PolarAlignment.asp ( może ktoś przetłumaczy ?)

Drift Alignment Using PHD Guiding Software:

Just recently an acquaintance ( Ted Rafferty) put me on to  doing the drift alignment using the popular auto guiding program (PHD) available for free at  Stark-Labs.

The process begins as all the other drift alignments. To check the RA alignment chose a star at 0° elevation close to  the meridian. To set the DEC alignment choose a star as close to  the E or W horizon as possible.

1 Turn on the guiding program (PHD) , select the mount and camera and run thru your  calibration a usually.

2 To Check the RA select a star near the Meridian at 0° elevation.

3 Start Guiding on the selected star.

4 Turn on the GRAPH and select DX/DY instead of RA/DEC.

5 Turn off the DEC guiding

6 If your mount is perfectly aligned the DY ( red line) should track across the graph near the center line. If it drift up  or  down you  need to  make a very small adjustment to your AZIMUTH screws to compensate for that. You  will see the change immediately. No need to  wait 5 or 10 minutes for the visual drift.

7 Now set up  the elevation.

8 Stop the guiding and look for a star near the western or eastern horizon at whatever elevation allows you to clear any obstruction. The lower the better.

9 Recalibrate the guiding on the new star.

10 As in step 3,4 & 5 above start guiding and make sure that  the DEC guiding is off.

11 Once again if your alignment is on then the DY trace should not drift from the horizontal graph line. If it does, carefully mar small adjusts to the ELEVATION screws to compensate. Again you should see an immediate change in the graph.

This process is simple enough to allow you to check you  polar alignment whenever you  feel it necessary. The only requirement is that  you  get a copy of PHD and have a camera that  is supported by the program ( there are many).