LX850 blog: www.LX-850.com
personal website: www.wadsworthobservatory.com
PeteGallery: http://www.astrobin.com/users/pmumbower/CGE Pro modded C9.25 | 8" f/4 newt SBIG ST-2000XM, CFW-9, Astronomik type2c LRGB QHY5L-II mono, SSAG PEMPro2,Sequence Generator Pro, PixInsight,RegiStar
Quote:I dont think it's the difference in focal length at all, I regularily guide a c8, 2000mm fl, with a 9x50. We get much better results than that.
10Micron GM2000HPS, 10Micron GM1000HPS, SW NEQ6 Takahashi FSQ106 EDX III, SW 190MN, TS Riccardi 130 f/5.2 SBIT ST-8300M, QSI 683wsg8 SX Wheel, Baader 2" filters, Baader 36mm filters, Astrodon QSI filters http://astro.frejvall.se
Quote:1) you could use a GPUSB, plugs into your laptop USB port and the other end goes to your mount's ST4 port. Then select the GPUSB ASCOM driver as your mount in PHD.2) if your mount has a serial port, get an FTDI USB-to-serial converter ($20 on ebay) and install the ASCOM platform and ASCOM driver for your mount. Then select the mount ASCOM driver as your mount in PHD.
Greenfield, Indiana USA
Deforked 1979 Orange C8 WO 66mm APO 80mm f/7 refractor Sears 60mm refractor 80mm Orion short tube
Meade LX80 IOptron zEQ25
Quote:I am attempting to move into the world of guided AP. Here is my setup:C9.25Orion AtlasOrion ST 80 GuidescopeCelestron Nexguide AutoguiderAfter aligning the mount, the hand controller indicated I was within 10 arc seconds for Alt and 1 arc minute for AZ.I setup the guider. It locked, calibrated and started guiding with no issue. The camera exposure was set to 1 minute and 30 seconds. When I look at the images, the stars come out egg shaped. I tried this 2 nights in a row and the stars all show some issues. The oblong area of the star does not always point in the same direction so this doesn't appear to be something mechanical that occurs the same way each time. I tried to make an animated gif to show what this looks like over several exposures and I will post a single image as well.Any ideas as to what is causing this phenomena?
Uncle Rod Uncle Rod's Astroblog: http://uncle-rods.blogspot.com/