invalid run ur

There is no map for that time. Try 'back' in your browser.

debug: map_type r run ur offset isb
Error: unable to get chart data for [g_PA]

Warning: Illegal string offset 'privacy' in /home/clear/www/www/f.php on line 92

Error: unable to get chart data for [g_PA]

Error: unable to get chart data for [g_PA]

Warning: Illegal string offset 'sponsored' in /home/clear/www/www/f.php on line 651

Clear Sky Chart

Astronomy-Weather Map
Click on Map to:
 Show coords:
link roadmap
find charts




Error: unable to get chart data for [g_PA]

invalid run urNo Forecast Image for this time.

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

Previous ForecastTime
Local Time

invalid run ur
Warning: Illegal string offset 'timezone' in /home/clear/www/www/f.php on line 778
-1:00

invalid run ur-1Z

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

This Forecast Time
Local Time
Warning: Illegal string offset 'timezone' in /home/clear/www/www/f.php on line 797
00:00 00Z

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

invalid run ur

Next Forecast Time
Local Time

invalid run ur
Warning: Illegal string offset 'timezone' in /home/clear/www/www/f.php on line 818
-1:00

invalid run ur-1Z

What does Z mean?

The times on the maps are in Zulu time. Also casually called GMT or UT. A conversion table to local times is here. But the colored blocks, labelled in local time, will always point to the correct maps in Zulu time on this page.

Why check these maps?

The colored blocks on the clear sky charts show the forecast from these maps for the location of the chart. But the colored bock doesnt show you how nearby very different weather could be. Look at these maps to see if a colored block on the chart corresponds to a tiny clear hole surrounded by clouds or a large clear area. The larger the area of the same color under the cross hair, the higher the accuracy of the forecast. .

Why isnt there a single forecast map for observing conditions?

The observation of fine detail seen in telescopes on planets or the moon requires good seeing but can still be good during poor transparency. Visiblity of galaxies and nebulae in telescopes, or the milky way with the un-aided eye, requires good transparency but isn't much affected by seeing. All astronomical observations require a low percentage of cloud cover or clear skies. Humidity, Wind, and Temperature won't determine if you can observe, but they might affect how comfortable you are or how much your telescope will shake or dew up. Many factors affecting observing means many maps.



Warning: Illegal string offset 'title' in /home/clear/www/www/f.php on line 867
Back to N Clear Sky Chart | Clear Sky Chart Home | Clear Dark Sky Homepage

Copyright © 2024 Attilla Danko.

debug: quad r, type r, offset isb, run ur, rootdate 4T1812Ha /debug