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iOptron Polar Scope

This is an app to show the position of the Pole Star (Polaris in Northern Hemisphere, or Sigma Octantis in Southern Hemisphere) in the polar scope of all the iOptron(R) telescope/camera mounts.
Category Price Seller Device
Utilities $1.99 Chengcheng Xu iPhone, iPad, iPod

The app uses the best algorithm to calculate the position of Pole Star. The overall accuracy of the algorithm has reached sub 0.1 arc-seconds now.

The app now using a 10 minute marker reticle, the same reticle used in the polar scope of iOptron(R) telescope mount since 2014.

A must have for iOptron(R) SkyTracker and SkyGuider users!
Also very helpful for any iOptron(R) telescope mount owners. It may also be used with other brand telescope/camera mounts with similar polar scope reticle.

No human interaction required when iOS devices can using location service normally.
iPad users can now manually enter the location when location service is unavailable.

NOTE: Currently (2016/03/24), This app has better accuracy than iOptron Commander and iOptron 8407/8408 hand controller. iOptron Commander and iOptron 8407/8408 hand controller will be updated to the identical algorithm as this app in a future release.

Reviews

Do not buy - very weak functionality
Physics2

It tells you where Polaris is located for your current time and location. But with no options or way to configure the display (other than English / Chinese). Other apps do this as well but with plenty of options for customization. It might be OK if it were free, but it is dismal at $1.99.


Hopeless App..
Muppypong

I feel ripped-off! I’m in the southern hemisphere and can’t figure out how to use the darn thing to find sigma-oct! Piece of junk!!


Not American English
Stucko100

The elevation is in metric not much help in the USA. If it can be converted to Chinese why not USA measurements? I’m not knocking metric but I’ve spent 60 years using feet ,miles and Fahrenheit. So only half of this app is of any use for me. It’s only good for alignment I should have paid better attention and not assumed it was for the US market. I can use it but I won’t have a clue about my elevation.


Yep...not good
JEHJIRA

Purchased and no instructions or troubleshooting guide. Couldn’t even figure out how to contact the developer. I can’t even give it a rating...I guess I’ll have to buy ZWO...


Awesome
Chasef was here

Works perfectly every time! This app get my polar aligned perfectly and keeps the stars pin pointed and without any star trails


GREAT APP!!!
LostatLand

If I haven’t used it for awhile I forget how great an app it really is. Simple, accurate, and easy. That’s what I want when out in the dark. ;) Thanks!!


Inaccurate and no settings! BEWARE: NO REFUND!
Bewilderedatman

First, the position of Polaris is 5 arcminutes too low. (If the app says 39', the actual position is 44'.) Second, there are no settings to change meters to feet or degrees C to degrees F. I intend to get a refund.


User
Astronewb

Very nice app for iOtpron EQ mount owners, it would be nicer is the date actually worked correctly? The date is a year off...the month is off by a month..and the day is off. The actual info on Polaris seems to be correct.


Very useful !
PopovKai

Use it with my iEQ30 and SkyTracker ... Very useful.


location location location #2
5563443

I second the 2boldlygo rating - It says this app is good for the itouch, but the itouch doesn't have gps capability (at least not when wifi is turned off). This app should provide the ability to input your lat/long location and it does not.


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