SingAstro

1 First do a Drift alignment. 2.Then Fine tune Drift alignment using Drift alignment utility in PHD Kochu Thanks. I think most of the questions are not really about this error -- although it contributed some little part. After all, a 4' PA error would be contributing 1.01arcsec/min drift in DEC onl...

Q4c. If that RA drift is confirmed consistent, shall I fine tune my tracking rate to compensate for it? According to the graph, I would have to tune the tracking rate to 1.0020888888888888888888888888889X. On CEM40, the rate could be set to a number between 0.9900X to 1.0100X.

Here is the link to the photo of the factory report on PE. Max deviation at approx. 2.5" only. (Specifications say +-7")

https://photos.app.goo.gl/p7BbhdRdoWidkhEm6

Q5. Has the factory test auto-corrected the slow drifting in RA?

Rig: 115mmF7 APO, CEM40, ASIM183MM Pro. Pixel scale: 0.61"/px A little bit struggling with my learning auto-guiding using the main OTA+cam. Well, the purpose was actually to learn how to train PEC and to fine tune the system so that autoguiding will become unnecessary for my targeted subexposur...

I have a few areas in mind but have not tried any of them. All are located in west area. Most are generally shooting towards central catchment area. 1. Jurong lake gardens 2. Big open field near dairy farm rock climbing wall 3. Observation tower at chestnut nature park 4. Open field along dairy far...

Last night tried the quick alignment using the reference scope view image created the other day.

So far so good for my 30s sub exposures at 0.6"/px -- unguided. Stars all are round shape. The clear sky window was short and precious. So didn't bother to check polar alignment using PhD2.

Clear skies, finally. More accurately, 1 hour plus time window only of clear skies in the evening of May 22 (Sg time), and a nice sky in the early morning of May 23 (Sg time). And this is my first experience photographing stars using a telescope (Sky Rover 115mmF7+Flattener). The other day there was...

Visit https://www.lightpollutionmap.info and feel.... There are two sites that might be relatively darker. 1. Near the Changi Exhibition Center. There is a huge parking space n open field. Go further towards the shore and away from the road. The North sky is quite dark. Unfortunately it is closed. I...

Airconvent wrote: ↑Sat May 23, 2020 4:51 pm Thanks for sharing hhzhang ... that is indeed detailed! Stay safe

Welcome!

Hope everyone here will begin to realise the fact we do have certain advantages over those in other regions when it comes to polar alignment.

Clear skies!

Job done.

Wish for clear night skies.

Sadly the wet weather persists and I seem to miss the galaxies season totally.

Not a fan of nebulosity, what shall be my targets for the summer?