The phrase "astronomical time" is correct and usable in written English.
It can be used in contexts discussing time scales related to astronomy, such as the age of celestial bodies or the vastness of time in the universe.
Example: "The age of the universe is often measured in astronomical time, which spans billions of years."
Alternatives: "cosmic time" or "universal time".
Astronomers relied on astronomical time, where noon counted as the start and end of each day.
Astronomers used Greenwich Mean Astronomical Time (GMAT), in which the day begins at noon.
"That buildup slows the earth down, and when it melts, it's like the skater has pulled her arms back". The astronomers at the International Earth Rotation and Reference Systems Service keep track of the difference between astronomical time and atomic time.
Scargle, J. D. Studies in astronomical time series analysis.
However some reports used astronomical time where the 24 h day starts at noon.
The center will collect among others a large set of Astronomical time series (light curves) from various surveys.
This paper describes the Vartools program, which is an open-source command-line utility, written in C, for analyzing astronomical time-series data, especially light curves.
Abstract: This paper describes the Vartools program, which is an open-source command-line utility, written in C, for analyzing astronomical time-series data, especially light curves.
I will be talking about the challenges of classifying astronomical time-series data, such as the photometric light curves collected by PTF.
A postdoctoral position is available at the University of California, Berkeley for an individual who can lead an effort in real-time classification of astronomical time-series data for the purpose of extraction of novel science.
Topics: astronomical coordinates, time, optics, telescopes, photon counting, signal-to-noise ratios, data analysis (including least-squares model fitting), limitations imposed by the Earth's atmosphere on optical observations, CCD detectors, photometry, spectroscopy, astrometry, and time variability.
