Contest: Win a Copy of 'Sidereal Clock' iPhone App

By Nancy Atkinson - October 24, 2011 at 8:25 PM UTC | uncategorized
sidereal-clock.png

[/caption]

You know you've always wanted your own sidereal clock. Now, here's your chance. We're giving away 10 access codes for the new Sideral Clock astronomy iPhone app. Just

send an email

to us with "Sidereal Clock" in the subject line and Fraser will choose five winners at random.

Sidereal time is a time-keeping system astronomers use to keep track of the direction to point their telescopes to view a given star in the night sky. A a sidereal day is the time scale that is based on the Earth's rate of rotation measured relative to the fixed stars. All observatories have a Sidereal Clock, and you can find sidereal time on the Internet, but you don't always have access to the internet while observing. If you have an iPhone you can now install "SiderealClock" application and carry it with you everywhere you go.

This app uses iPhone geopositioning, and the application displays the current time (LMT), Greenwich time (GMT), your local Sideral Time (LST) and also the Julian Day. SideralClock is a real time clock and runs in any iPhone with geopositioning system and iOS 4.2 or higher.

Find more informations about this application at Apple iTunes Store

The app is available in English, Spanish, Italian, French, German, Portuguese, Russian and Japanese.

Thanks to designer Fabio Rendelucci for providing the app codes for this contest!

Note: this contest replaces an earlier one that was canceled, in case you feel like you are experiencing deja vu.

Nancy Atkinson

Nancy Atkinson

Nancy Atkinson is a space journalist and author with a passion for telling the stories of people involved in space exploration and astronomy. She is currently retired from daily writing, but worked at Universe Today for 20 years as a writer and editor. She also contributed articles to The Planetary Society, Ad Astra (National Space Society), New Scientist and many other online outlets.

Her 2019 book, "Eight Years to the Moon: The History of the Apollo Missions,” shares the untold stories of engineers and scientists who worked behind the scenes to make the Apollo program so successful, despite the daunting odds against it. Her first book “Incredible Stories From Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos” (2016) tells the stories of 37 scientists and engineers that work on several current NASA robotic missions to explore the solar system and beyond.

Nancy is also a NASA/JPL Solar System Ambassador, and through this program, she has the opportunity to share her passion of space and astronomy with children and adults through presentations and programs. Nancy's personal website is nancyatkinson.com