Traditionally the astronomical calculations needed to make a Pancanga were done according to an astronomical text such as Surya Siddhanta.
The "Astronomische Gesellschaft" is an astronomical society established in 1863 in Heidelberg, the second oldest astronomical society after the Royal Astronomical Society.
. Astronomical dawn marks the beginning of astronomical twilight, which lasts until nautical dawn.
Oil Region Astronomical Observatory is an astronomical observatory owned and operated by Oil Region Astronomical Society.
The International Astronomical Union Circulars (IAUCs) are notices that give information about astronomical phenomena.
The equinox may be taken to mark the end of astronomical summer and the beginning of astronomical autumn (autumnal equinox) in the Northern Hemisphere, while marking the end of astronomical winter and the start of astronomical spring (vernal equinox) in the Southern Hemisphere.
In 1973, Burton's astronomical work was honoured by the International Astronomical Union which named a crater on Mars after him.
Forbes lectured regularly on astronomical topics. In 1921 he read a paper on "Reflecting telescopes, with practical directions for grinding and figuring the mirror" at the Cape Astronomical Association and in 1927 presented "Satellites and their movements" to the Natal Astronomical Society.
Terrestrial Time (TT) is a modern astronomical time standard defined by the International Astronomical Union, primarily for time-measurements of astronomical observations made from the surface of Earth.
In the astronomical field, Invar is used as the structural components that support dimension-sensitive optics of astronomical telescopes.
This assumption holds for most astronomical sources. Pulsars and masers are the only astronomical sources which exhibit coherence.
An astronomical catalogue is a list or tabulation of astronomical objects, typically grouped together because they share a common type, morphology, origin, means of detection, or method of discovery.
The mission of the Astronomical League is to promote the science of astronomy by (1) fostering astronomical education; (2) providing incentives for astronomical observation and research; and (3) assisting communication among amateur astronomical societies.
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