4.4
101 reviews
10K+
Downloads
Content rating
Everyone
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About this app

An app for Astronomy and Astrophotography enthusiasts. MySiderealTime is a useful Sidereal Clock utility to assist you while you use your telescope and mount during your astronomy viewing session or for your night of astrophotography. The local sidereal time is displayed in hours minutes and seconds in 24 hour format. The local time is also displayed, and by tapping the local time, it will toggle between 12 and 24 hour formats. Latitude and Longitude can be displayed in either decimal degrees or in degrees, minutes, seconds. Tapping the Latitude and Longitude display will toggle between formats. The display defaults to night vision mode as to not disturb your night vision. For viewing indoors or in bright sunlight, the display can be switched to day vision mode by tapping on the sun icon. The display can be switched back by tapping on the moon icon. The device GPS sensor is used to determine your exact location so the correct Sidereal Time can be displayed along with your latitude and longitude coordinates. The display will also show the current GMT, your local offset from GMT, and if (DST) Daylight Savings Time is in effect.
Updated on
Mar 10, 2016

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4.4
101 reviews
A Google user
May 18, 2019
Once you allow access to your location it uses location and time to give you LST, and shows zone time and location accurately. The red on black screen is indispensible for use in the dark, as in the observatory or in the field. It starts fast on my Samsung phone.
16 people found this review helpful
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Lawrence Widacki
April 24, 2022
It's a good app but bright blue bar across the top of the screen is rather blinding. Kind of defeats the night vision red. So that why I gave it 3 stars.
2 people found this review helpful
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A Google user
August 29, 2019
Excellent, but would be even better if it could get daily notifications for a specific time since you can't just use a set time on your email calendar. 13:30 reminders would probably interest many users.
11 people found this review helpful
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