Zero Shadow Day
Zero Shadow Day - Discover Zero Shadow Days
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- full network access
- control vibration
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App summary
Zero Shadow is a phenomenon when the sun is exactly overhead and the shadows of symmetrical and vertical objects vanishes. This happens for locations between the tropics and is caused by the northern and southern motion of the sun during the course of a year. This app helps you find the Zero Shadow Day for any location.
If you are between Tropic of Cancer and Tropic of Capricorn, then on a particular day (one during Uttarayan and other during Dakshinayan) the Sun will pass directly overhead at local noon. At local noon on this day, a vertical pole will cast no shadow. These are called Zero Shadow Days, or ZSD. This app is an aid to the campaign by the Public Outreach and Education Committee of the Astronomical Society of India for celebrating ZSD.
Inputs and Content by
Dr. Niruj Mohan Ramanujam, ASI POEC
Translations by:
Kannada - Dr B.S. Shylaja of Jawaharlal Nehru Planetarium Bengaluru and Mrs. Jyotsna
Telugu - Teja Teppala
Marathi - Dr. Aniket Sule, HBCSE, ASI POEC.
Hindi - Alok Mandavgane
Spanish - Alvaro Jose Cano Mejia from Colombia
Portuguese Brazilian - José Roberto Vasconcelos Costa
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Google Play Store does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated.- Informative and educational about zero shadow days and solar movement
- User-friendly interface and easy to use
- Helpful for visualizing complex astronomical concepts
- Provides good data and facts to keep users engaged
- Highly specialized for users in tropical regions
- Requires camera access without permission notification
- Daily zero shadow calculations may not be accurate or continuous
- Lack of resources or guidance for users wanting to calculate zero shadow days themselves
- Helpful and educational app
- Good visualization and data presentation
- Request for additional language support (Bengali)
User reviews
ASHKAR MK, 2024-07-21 
Mark D60, 2024-06-26 
Ramnath Vaidyanathan, 2024-04-24Similar apps
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