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Sidereal Time

Sidereal Time

by Milan Battelino

9 ratings
12 reviews
📚 Education
🔧 Utilities

Archived App

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • March 10, 2010
  • September 25, 2017

Features

Developer

Milan Battelino
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Sidereal Time screenshot #1 for iPhone
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Sidereal Time screenshot #3 for iPhone
⭐12
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🔄6+ apps
Alternatives↘︎
❓8 answered
FAQ↘︎
📦w/o updates
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About

This utility app calculates and displays various types of sidereal time, including local apparent and Greenwich apparent sidereal time. It uses device location or manual input for longitude and time zones, and can synchronize with NTP servers for accurate timekeeping.

✓Local Apparent Sidereal Time (LAST) calculation
✓Greenwich Apparent Sidereal Time (GAST) display
✓Longitude and Time Zone input
✓NTP server synchronization
✓Coordinated Universal Time (UTC) clock
Show original description

What's New in Sidereal Time

1.7

September 25, 2017

This app has been updated by Apple to display the Apple Watch app icon. Updated for iOS 11.0. Minor bug corrections.

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User reviews

Most RecentHighest RatedLowest Rated

I have a vpn. App would not work. No mechanism to manually enter location.

I have a vpn. App would not work. No mechanism to manually enter location.
Es12!nedEs12!ned

crashes in ios 14

fails to launch
howard_finkhoward_fink

Accurate calculation, but no night mode

Straight-forward app for displaying times useful for astronomers, such as UTC and LAST, and does so correctly to better than 1 second accuracy!

Unfortunately, this suffers from a major problem: I cannot find a setting to display as a night-vision safe dim red, making this useless as a visual astronomy observation clock.
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PaplooTheLearnedPaplooTheLearned

Nice app

Needs an alarm to alert when is your own sidereal time.
luciusgluciusg

No luck

Apparently the download failed. I have OS X Yosemite 10.10.5 which I just learned does not support this app. Should not be offered in iTunes store. Regret wasting time with this.
Not for iMacNot for iMac
See 7 more reviews

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FAQ

What is Sidereal Time used for?

Sidereal Time is crucial for astronomy as it directly relates to the apparent position of stars in the sky. It's used in telescopes and observatories to track celestial objects accurately.

How does Sidereal Time determine my location?

Sidereal Time uses your device's core location services, including GPS, cellular triangulation, and Wi-Fi positioning, to determine your current longitude for accurate Local Apparent Sidereal Time calculations.

Can I manually set the longitude in Sidereal Time?

Yes, you can manually select the longitude coordinate to determine LAST or make a rough estimate by selecting a Time Zone if GPS is unavailable or you wish to calculate for a different location.

How accurate is the time synchronization in Sidereal Time?

The app synchronizes its clock against primary network time standards by selecting one of 30 Stratum-1 NTP servers or allowing you to add your own, ensuring high accuracy.

What devices is Sidereal Time compatible with?

Sidereal Time is available for iPhone and iPod devices. It was last updated to version 1.7 on September 25, 2017.

What is the age rating for Sidereal Time?

Sidereal Time has an age rating of 4+, making it suitable for a wide range of users interested in its utility.

How much does Sidereal Time cost?

Sidereal Time is a paid application, priced at $0.99. There are no in-app purchases or subscriptions mentioned.

Does Sidereal Time have ads?

The provided data does not indicate the presence of advertisements in Sidereal Time. As a paid app, it is likely ad-free.