APT Darkness Clock

APT Darkness Clock

Knowing when to image/observe

4 ratings
3 reviews
Free

Details

  • Released
  • Updated
  • February 24, 2018
  • March 6, 2018

Features

APT Darkness Clock screenshot #1 for iPhone
APT Darkness Clock screenshot #2 for iPhone
APT Darkness Clock screenshot #3 for iPhone
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About

This app calculates the optimal times for deep sky astrophotography and observation based on your location and night sky conditions. It determines the duration and start/end times of ideal darkness, excluding twilight and moonlight.

Calculates Deep Sky Darkness Time (DSD Time)
Determines start and end times for DSD Time
Calculates DSD Time duration
Supports current location
Allows storing up to three observing sites
Free and ad-free
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What's New in APT Darkness Clock

1.3

March 6, 2018

This app has been updated by Apple to display the Apple Watch app icon. -Added the Moon phase visualisation for the selected night -More detailed legend for the displayed values -Fixed a bug in the automatic Daylight Saving Time calculation

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User reviews

Handy app

Handy app from apt , lets you know sun rise /set, Astro twilight start end /moon rise/set /illumination all handy in one place what’s not to like .

Simple handy App

Nice simple easy to use App

Good app!

Handy info to have to hand! Works
Well to make more accessible the info I’ve been using in APT for several years!

FAQ

What is APT Darkness Clock used for?

APT Darkness Clock is used to calculate the optimal times for deep sky astrophotography and observing. It specifically determines the Deep Sky Darkness Time (DSD Time), which is the period between evening and morning astronomical twilight when the Moon is below the horizon.

Is APT Darkness Clock free to use?

Yes, APT Darkness Clock is a free application. It does not contain any advertisements or in-app purchases, making it completely free for users.

What devices does APT Darkness Clock support?

APT Darkness Clock is available for iOS devices, including iPhones and iPads. It is designed to run on these platforms to assist users with their astronomical observations.

How accurate is APT Darkness Clock?

The app calculates optimal times based on astronomical twilight and moon phase, which are scientifically determined. Users can select their current location or stored sites for precise calculations relevant to their observing environment.

Can I use APT Darkness Clock offline?

The provided information does not specify offline functionality. However, as it calculates times based on location and astronomical data, an internet connection might be required for initial setup or location services.

What is the age rating for APT Darkness Clock?

APT Darkness Clock has an age rating of 4+. This indicates it is suitable for users of all ages and does not contain any content that would restrict its use by younger audiences.

How often is APT Darkness Clock updated?

The app was last updated on March 6, 2018, to version 1.3. While there haven't been recent updates, the existing functionality provides core features for astrophotography timing.

Where can I get support for APT Darkness Clock?

For suggestions and support, you can visit the dedicated section of the APT Forum at http://aptforum.com/phpbb/viewforum.php?f=26. This forum is the primary resource for user assistance and community interaction.