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Just when I thought I had my guiding with PHD2 figured out I think I believed I was living in the land down under???? I read I am to line up -+ 10 degrees of Celestial Equator, within 1 hour of Celestial Meridian.....so I'm looking South? I thought I was to be looking North. I mean I have been getting some good calibration despite having a AVX mount but I keep having a little backlash. could my bass-ackwardsness be the problem?
No, the AVX is known for its large amount of dec and RA backlash. it is a physical characteristic of this mount and is not exacerbated by where you calibrate in the sky.
For PHD2, what the manual is telling you is find a star near the intersection of the meridian and the celestial equator and calibrate off that star. It doesn't need to be spot-on just reasonably close.
Cheers,
JT
∞ Primary Scopes: #1: Celestron CPC1100 #2: 8" f/7.5 Dob #3: CR150HD f/8 6" frac ∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO ∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5 ∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros. ∞ Mounts: iOptron CEM70AG, SW EQ6R, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000 ∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3 ∞ Binos: 10X50,11X70,15X70, 25X100 ∞ AP Gear: ZWO EAF and mini EFW and the Optolong L-eXteme filter ∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°
Searching the skies since 1966. "I never met a scope I didn't want to keep."
Sorry, what is the question exactly? Are you trying to polar align, concord nc list 35 deg North, the mount should be facing north and aligned 35 deg above the horizon
scopes :gso/bintel f4 12"truss tube, bresser messier ar127s /skywatcher 10'' dob,meade 12'' f10 lx200 sct
cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60, sony a7,asi 290 mm
mounts : eq6 pro/eq8/mesu 200 v2
filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, chroma 3nm ha,sii,oiii,nii,rgb,lowglow,uv/ir,Thousand Oaks Solar Filter,1.25'' #47 violet,pro planet 742 ir,pro planet 807 ir,pro planet 642 bp ir.
extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII Coma Corrector,Orion Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel,tele vue 2x barlow .
Ohh is op doing drift alihhnment? Basicly up for longitude adjustment north or south and a bit above the horizon west or east for latitude adjustment,within 30 deg or so is good enough
scopes :gso/bintel f4 12"truss tube, bresser messier ar127s /skywatcher 10'' dob,meade 12'' f10 lx200 sct
cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60, sony a7,asi 290 mm
mounts : eq6 pro/eq8/mesu 200 v2
filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, chroma 3nm ha,sii,oiii,nii,rgb,lowglow,uv/ir,Thousand Oaks Solar Filter,1.25'' #47 violet,pro planet 742 ir,pro planet 807 ir,pro planet 642 bp ir.
extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII Coma Corrector,Orion Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel,tele vue 2x barlow .
If you will be guiding with ASCOM pulse guiding, you want to calibrate with the scope facing south, somewhere near the equator. It doesn't have to be exact, but that will give you the best calibration.
If you will be guiding with an ST-4 cable, you should calibrate near your target, wherever that is, especially if it is at a high declination.
DSO AP:Orion 200mm f/4 Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,Oiii,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP:Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on HEQ5 pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome; iOptron CEM60 (pier); Helena Observatory (H2O)Astrobin
yobbo89 wrote: ↑Sun Oct 20, 2019 8:32 pm
Sorry, what is the question exactly? Are you trying to polar align, concord nc list 35 deg North, the mount should be facing north and aligned 35 deg above the horizon
No this was about calibartion. I've got the PA down pretty good with ASPA.
Wherever you calibrate, it can still work. Best practices dictate that you should calibrate to the south, near the meridian and the celestial equator (if you are using ASCOM, as Kathy stated)
-James W.
Telescope:Explore Scientific 80mm FCD100 Triplet APO Refractor Mount:EQ6-RPro Cameras:ZWO ASI1600mm Pro (Cooled) | Canon DSLR EOS T7i Auto-guiding:ZWO ASI120mm-Mini + Astromania 50mm Guidescope
In the Northern hemisphere the scope will point South to be near the Celestial equator and the Meridian, just like the diagram you included shows. The point you want to be near is where the red line and the orange line cross.
