Quick test of pulse guiding with EQMOd - only 180 sec exposures but seem to work OK. NGC457 is quite a nice cluster (looks good in colour) - aka Owl cluster...
(http://jpastronomy.co.uk/graphics/OAS/ngc457.jpg)
(http://jpastronomy.co.uk/graphics/OAS/owl1.jpg)
Looking good John.
Nice round stars. Looking good.
Cheers Dunc, Mike.
QuoteNice round stars
... Not perfect but good enough for me...
Quote from: JohnP on Sep 09, 2013, 12:33:29
Cheers Dunc, Mike.
QuoteNice round stars
... Not perfect but good enough for me...
Not too shabby eh John :)
Is it my eyes or does the collimation need tweeking a tad ?
Robert
Well its an ED80 so not sure how I would do that...
No it's not collimation it's a guiding issue.
If the RMS guiding error in the DEC direction doesn't match the RMS guiding error in the RA direction then you will get elongated stars. The stars in this NGC457 image are uniformly elongated right across the FOV.
Mark
cheers Mark - Looks like I will need to play with settings for pulse guiding then... John
PHD2 reports the guiding error in both the RA and DEC directions.
just downloaded it.. Out of interest is PHD2 the same as PHD v1.14..? I can't find any reference to PHD2...? John
Try here:
http://www.daddog.com/phd2
cheers mark now downloaded..