Search found 294 matches

by PETER LOO
Fri Apr 12, 2019 7:40 pm
Forum: Equipment Discussions
Topic: iOptron SkyGuider pro
Replies: 6
Views: 1081

Re: iOptron SkyGuider pro

Used a much heavier mount GPD2 with GOTO to capture Centaurus A from my 9th floor kitchen window facing South https://live.staticflickr.com/7871/46676308765_f13b09fdc4_b.jpg Centaurus A 05 Apr 2019 by Peter Loo , on Flickr Mount: GPD2 with StarBook-S, guided by ZWO ASI-174M Mini. Imaging Scope: TS A...
by PETER LOO
Sun Mar 31, 2019 2:04 pm
Forum: Equipment Discussions
Topic: iOptron SkyGuider pro
Replies: 6
Views: 1081

Re: iOptron SkyGuider pro

The above object is Omega Centauri, RA: 13h 26.43 m, Dec:-47.46 Deg. This time the mount is guided via a lighter guider set up.
SkyGuider Pro Dec arm is too weak for mounting all the above stuff without doing a proper modification, and attached items might just fall off if not careful.
by PETER LOO
Sun Mar 31, 2019 2:00 pm
Forum: Equipment Discussions
Topic: iOptron SkyGuider pro
Replies: 6
Views: 1081

Re: iOptron SkyGuider pro

For EQ mounts that do not come with digital setting circle, an alternative way to search for deep sky object is to use "Digital Level Meter Circle setting". This required manual computation of Hour Angle H.A. in which: ((H.A. = LST - RA of the object)). LST implies Local Sidereal Time, RA implies Ri...
by PETER LOO
Tue Mar 12, 2019 1:54 pm
Forum: Equipment Discussions
Topic: iOptron SkyGuider pro
Replies: 6
Views: 1081

Re: iOptron SkyGuider pro

No guiding for this, due to weight consideration, Alt Polar alignment done through putting Digital Level Meter on mount top surface, Az polar alignment was done through Meade 12 mm illuminated eyepiece this round (to simulate situation for forgetting to bring guide scope), so it was found to be a li...
by PETER LOO
Tue Mar 12, 2019 1:38 pm
Forum: Equipment Discussions
Topic: iOptron SkyGuider pro
Replies: 6
Views: 1081

Re: iOptron SkyGuider pro

I just owned a Ioptron SkyGuider Pro recently, measured its Periodic Error at 40 + pk-pk but found it conflicting to my actual test, surprisingly, my actual test on Pollux for 2.5 mins shot at ISO 100 found stars to be as good for mount that is of 20 + pk-pk, don't know what went wrong. https://farm...
by PETER LOO
Tue Mar 12, 2019 9:30 am
Forum: Astrophotography
Topic: Polar aligning an ioptron SkyGuider pro
Replies: 7
Views: 2271

Re: Polar aligning an ioptron SkyGuider pro

I used my imaging scope (420mm f.l.) to test the mount Periodic Error for better resolution, the curve looks much smoother than earlier one. n.b. This mount is already heavily loaded when i put this 2.3 kg scope (with scope rings + dovetail = 2.8 kg), i should not add in the guide scope at the same ...
by PETER LOO
Sun Mar 10, 2019 10:47 am
Forum: Astrophotography
Topic: Polar aligning an ioptron SkyGuider pro
Replies: 7
Views: 2271

Re: Polar aligning an ioptron SkyGuider pro

Here is a example of the PHD Drift Alignment for Ioptron SkyGuider Pro Mount, hopes it help, Good Luck https://farm8.staticflickr.com/7877/47333199211_3a75ef524b_b.jpg Imaging n Guiding Set up by Peter Loo , on Flickr https://farm8.staticflickr.com/7905/47280665802_3385033680_b.jpg Mount too far Eas...
by PETER LOO
Fri Mar 08, 2019 11:40 pm
Forum: Astrophotography
Topic: Polar aligning an ioptron SkyGuider pro
Replies: 7
Views: 2271

Re: Polar aligning an ioptron SkyGuider pro

My Ioptron Sky Guider Pro arrived yesterday, just tested it tonight, cannot achieve 8 arc sec as some one claimed on Cloudy Night Forum for Star Adventurers mount, which is also 144 teeth. But at at least it is smooth (those transient spikes are due to bad sky condition, cloud cover. https://farm8.s...
by PETER LOO
Tue Feb 12, 2019 10:07 pm
Forum: Astrophotography
Topic: Window Astrophotography 2019
Replies: 16
Views: 928

Re: Window Astrophotography 2019

Excellent Ivan, and i like your Horse Head neb very much 😀