Our website uses necessary cookies to enable basic functions and optional cookies to help us to enhance your user experience. Learn more about our cookie policy by clicking "Learn More".
Accept All Only Necessary Cookies
APT Darkness Clock icon

2.6 by Distinct Solutions Ltd.


Aug 29, 2024

About APT Darkness Clock

APT DC calculates the suitable time for deep sky astrophotography.

APT Darkness Clock (APT DC) is a free app without ads, that calculates the suitable time for deep sky astrophotography or observing in selected night and location. It is a small sub-set of a full featured desktop application named APT - Astro Photography Tool.

APT is like Swiss army knife for your astro imaging sessions. No matter what are imaging with - Canon EOS, Nikon, CCD or CMOS astro camera, APT has the right tool for planning, collimating, aligning, focusing, framing, plate-solving, controlling, imaging, synchronizing, scheduling, analyzing, monitoring and more. You can find additional information about APT at www.astrophotography.app.

To image or observe a faint deep sky objects is needed to use the darkest time of the night. This is the time between the evening astro twilight end, the morning astro twilight beginning and when the Moon is below the horizon. In APT that time is named DSD Time - Deep Sky Darkness Time. If the imaging is through narrow band filters, the Moon is less significant factor and important is the time between the astro twilights. This time is named NB Time - Narrow Band Time.

The purpose of APT DC is to calculate what is the DSD / NB Time duration and when these times starts/ends for selected night and location. It is possible to use the current location or one of three other stored observing sites.

For suggestions and support related to APT DC, use the dedicated section of the APT Forum at - http://aptforum.com/phpbb/viewforum.php?f=26

What's New in the Latest Version 2.6

Last updated on Aug 29, 2024

2024/08/25 - v2.6 Required update
- Google API version upgrade

Translation Loading...

Additional APP Information

Latest Version

Request APT Darkness Clock Update 2.6

Uploaded by

Noseta Nosa

Requires Android

Android 5.0+

Available on

Get APT Darkness Clock on Google Play

Show More

APT Darkness Clock Screenshots

Comment Loading...
Subscribe to APKPure
Be the first to get access to the early release, news, and guides of the best Android games and apps.
No thanks
Sign Up
Subscribed Successfully!
You're now subscribed to APKPure.
Subscribe to APKPure
Be the first to get access to the early release, news, and guides of the best Android games and apps.
No thanks
Sign Up
Success!
You're now subscribed to our newsletter.