January 15, 2019 at 3:32 am #3511
A really short question – I have just bought a star tracker, I live in Australia. The southern pole is obscured from my view at home. Can I polar align my tracker if I can’t see the pole?January 15, 2019 at 4:17 am #3512OsirisRAParticipant
If you set the correct latitude for your location and point it due south you will be all good for widefield work.
For a more accurate polar alignment you will need to do a drift align or similar but that will require to use a laptop and software or purchasing a polemaster.
January 17, 2019 at 2:22 pm #3744Dean VinsonPhotog Adventures Team
- This reply was modified 1 year, 9 months ago by OsirisRA.
In short Yes –
The paid version of the Polar Scope Pro app has a daytime alignment feature that allows you to set your phone against your scope and gives you basically a bubble level to align with but it’s not 100%. Good enough for wide – mid range Milky Way imaging but not deep space imaging.
Depending on your polar scope, some have star patterns off to the side for helping align with the south pole.
Youtube how to polar align in the Southern Hemisphere on youtube. I know the Star Adventurer has a way to do it.January 18, 2019 at 5:40 am #3776
Thanks guys. Interesting advice Dean. I have a star adventurer. I haven’t used it yet but if I managed a mediocre alignment, how long do you think my shutter speed could be using a 70mm focal length on a canon crop sensor (70mm x 1.6 = 112mm). Normally 4.5 sec. Or do I just trial and error it until star trails disappear?January 18, 2019 at 6:59 am #3782OsirisRAParticipant
Even with a rough polar alignment at that focal length you will easily get a few minutes no problem.January 18, 2019 at 5:17 pm #3786Dean VinsonPhotog Adventures Team
Even with a rough polar alignment you’ll be able to get plenty of exposure time at that focal length.
Watch this video. He goes over southern hemisphere alignment using the star adventurer. Might take some practice but it looks pretty easy!January 19, 2019 at 12:56 am #3796
Awesome! Thanks guys.
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