1. Astronomical surveyAn astronomical survey is a general map or image of a region of the sky which lacks a specific observational target. Alternatively, an astronomical survey may comprise a set of many images or spectra of objects which share a common type or feature. Surveys are often restricted to one band of the electromagnetic spectrum due to instrumental limitations, although multiwavelength surveys can be made by using multiple detectors, each sensitive to a different bandwidth.
Read “Astronomical survey” on English Wikipedia
Read “掃天観測” on Japanese Wikipedia
Read “Astronomical survey” on DBpedia
Read “Astronomical survey” on English Wikipedia
Read “掃天観測” on Japanese Wikipedia
Read “Astronomical survey” on DBpedia
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