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Clear Sky Charts (called clocks until February 29, 2008) are web graphics which deliver weather forecasts designed specifically for astronomers. They forecast the cloud cover , transparency and astronomical seeing , parameters which are not forecast by civil or aviation forecasts. [ 1 ]
The clear sky makes for ideal viewing weather but not literally viewing it unless you have the proper eye protection. Directly looking into an eclipse without the right eye covering causes solar ...
In astronomy, seeing is the degradation of the image of an astronomical object due to turbulence in the atmosphere of Earth that may become visible as blurring, twinkling or variable distortion. The origin of this effect is rapidly changing variations of the optical refractive index along the light path from the object to the detector.
The Old Farmer's Almanac details specific moonrise times for ZIP codes across the U.S. Local forecasts also include detailed information on how clear the night sky will be in various locations.
Margaret M. Jacoby Observatory is an astronomical observatory owned and operated by the Community College of Rhode Island. [1] It opened in 1978 [2] and is located in Warwick, Rhode Island, United States.
The aurora is expected to be bright and visible in multiple northern U.S. states Oct. 3 through Oct. 5 as well as from the lower Midwest to Oregon.
Clear Sky Chart Weather forecasts designed for amateur astronomers. List of astronomical societies; List of telescope parts and construction; Messier catalogue A set of astronomical objects catalogued by the French astronomer Charles Messier in 1771, which is still used by many amateurs as an observing list. Observation; Observational astronomy
Sky conditions are estimated in terms of how many eighths of the sky are covered in cloud, ranging from 0 oktas (completely clear sky) through to 8 oktas (completely overcast). In addition, in the SYNOP code there is an extra cloud cover indicator '9' indicating that the sky is totally obscured (i.e. hidden from view), usually due to dense fog ...