Quote:
Originally Posted by tempestwizz
Just bear in mind that even if you are perfectly polar aligned. and if the starting point of your alignment is perfectly at the 'home' position of 0.00 Hrs, 90 degrees, should your time setting not also be perfect for your location (E-W), there will be an initial pointing error of 15 arc minutes per minute of entered time inaccuracy.
Also consider that the 'time' you enter is for a time zone, ie same for Sydney or Broken Hill, and a given star will have a different relative RA angle in Sydney as distinct from Broken Hill.
Hence it is quite acceptable that the initial RA pointing angle is out. However, for a given location and accurate input data, that RA pointing error should start out reasonably consistent.
The DEC value should be close regardless of system timing inaccuracies.
HTH,
BC
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LOL
Hey there B, i was wonderin when you wuold show up in this !!
TBH, after using it for a few night, the polar alignment is pretty much spot on, i seen a minimal amount of drift after 10 mins, and it looked pretty good. i do take on board what your saying though, the time entered is from my phone (Tempestwizz very kindly came round to mine last week, and showed me his excellent method of alignment) and is set to be almost exact to the second, from my location
My illuminated reticle and T-ring have just arrived, so i will practice my drift aligment during the course of the full moon, so i can see what i am doing. i guess after realigning again and again, the mount will 'learn' my locale.
after goingt hrough it, i know its user error, and not anything else !!
