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Astrock, the Astronomical Clock

Astrock, the Astronomical Clock
  • #: 255992
  • Price: $1.99 In Apple Store
  • Category: Utilities
  • Updated: 2010-04-19
  • Current Version: 1.2
  • 1.2
  • Size: 0.50 MB
  • Language: English
  • Seller: Spolecne s.r.o.
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
  • © 2009 Spolecne s.r.o.
  •  Add to Favorite apps



Looking for a clock that offers a real-time sky map, daylight awareness and a bird's eye view to planet positions? This mesmerizing time piece offers an all-in-one solution, combining the sun, moon and planets as they move across the sky using a captivating medieval astrolabe.

The Astrock features:

* Sunrise, sunset, twilight, and the golden hour all in an intuitive manner, no numbers involved

* Current, future and past position of the moon and planets in the sky

* Lunar phases, solar time and the Zodiac sign

This can be especially useful for:

* Outdoor activities such as biking, camping, boating etc. to know when it gets dark

* Traveling across time zones

* Photography to know when the golden and blue hours will occur

* Tracing planets in the night sky

* Educational tool – for example, to see when the sun sets on the North pole

The clock was inspired by the astonishing astronomical clock (Orloj) in Prague, which is a major tourist attraction to this day. Dated back to 1410 AD the clock in Prague was a technical and mathematical masterpiece of that time. Two hundreds year later it inspired astronomer Johannes Kepler to write his famous laws. The Astrock makes the original Orloj like a palm size planetarium that fits in your pocket.

For some children as well as adults, the clock enhances the imagination and thirst for knowledge even six hundred years later. Do the circular movement of the sun and planets across the celestial sphere, along with the circular movement of the hour dial and circular shape of the Zodiac have something in common?

iPhone Screenshots

Astrock, the Astronomical Clock iPhone Screenshot 1

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Rated 3/5 based on 3 customer reviews.


5/5 stars

Very nice!

I love this astronomical clock app. It has a very nice graphical representation of daylight hours and planetary positions as well as moon phases.

The only thing left that would make this app even better IMO is displaying solar and lunar eclipses, showing both solar time and standard time simultaneously, and providing detailed text listing of the data to be displayed, on the main screen (sunset times, eclipse times, full date/day etc.).

0/5 stars

Waste of Money

Bought this app since it looked like it would help me easily see in what constellation the sun was currently in. Apparently, as of today 12/11/2010, any astronomy program would show the sun transitioning from scorpion to sagittarius. Astrock, on the other hand, is transitioning from sagittarius to capricorn. It seems to be a month off! So it doesn't follow the true pattern in the sky but the man-made month calendar. If you want a true indicator of the sign in the sky, I wouldn't recommend this product..

4/5 stars

Cool, but missing realism

The only thing not 5 stars is the realism. The original Astro clock this one is based on is absolutely breathtaking. If this clock had an option to change it over to a more realistic setting I would be enthralled, this would include the original scripts on the clock, the building, the calendar below the clock with more realistic graphics or animated photo shots to make it perfect. Maybe use a Maya CGI program?


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The information may be outdated (2011-05-04 21:49:10). For actual information go to iTunes

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