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We close when the last interested viewer leaves... This can also depend on the phase of the moon. When the moon is full it tends to wash out the view of other objects so it is not possible to pursue "deep-sky" viewing. On a moonless night we have sometimes stayed open 'till sunrise! Public programs and viewing sessions are held each Friday and Saturday night from March through mid November. Opening times vary with sunset. *(Near the summer solstice we begin our programs as late as 9:30 PM. In early spring we start as early as 7:00.)

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Related Questions

How long have the sand dunes been there?

specify sand dunes range it the time they were created


What organization is in charge of what the time is?

Greenwich observatory


What formed sand dunes?

Wind forms sand dunes by picking up dry sediments and accumulating them over time to create over time.


Do dunes stay the same over Time?

Sand dunes are continuously changing due to wind moving the sand around. The appearance of an area covered with sand dunes might remain similar for very long periods of time but the details can well have changed considerably.


How many sand dunes are there in thar desert?

No way to tell, sand dunes move every time a wind springs up.


Photographs of the surface of Mars reveal the presence of sand dunes that shift over time. These dunes demonstrate the presence of what phenomenon on Mars?

winds


How did the Stovepipe Dunes form?

Dunes are formed through the interaction of mountains and wind. The wind picks up quartz grains from the mountains in the area to form the dunes and these are reshaped by the same process over time.


How long does it take to climb sleeping bear dunes?

The time it takes to climb Sleeping Bear Dunes varies depending on fitness level and pace, but on average, it takes about 1-2 hours to climb to the top of the dunes.


What has the author Dennis D McCarthy written?

Dennis D. McCarthy has written: 'The determination of universal time at the U.S. Naval Observatory' -- subject(s): Systems and standards, Time, United States Naval Observatory


Have sand dunes been known to migrate?

Sand Dunes erode over time usually, however, in the desert it is possible for sand from one dune to be blown off and form another dune. Over time that single dune could "migrate" in a way. Sand dunes on the beach however usually just erode over time, they do not usually move.


Where is Greenwich time measured?

Greenwich is an observatory in London England, assigned as the "starting point" for the time zones.


What are facts about dunes?

Dunes are large mounds of wind-blown sand found in deserts, along coastlines, and in some arid regions. They are shaped by the wind and can move and change shape over time. Dunes are important in stabilizing coastlines and providing habitats for unique plant and animal species.