Back مسح فلكي Arabic مسح فلكى ARZ Sondeig astronòmic Catalan Durchmusterung German Reconocimiento astronómico Spanish نقشه‌برداری آسمان Persian Relevé astronomique French Pregled (astronomija) Croatian Égboltfelmérés Hungarian 掃天観測 Japanese

Astronomical survey

Composite image of the GOODS-South field, result of a deep survey using two of the four giant 8.2-metre telescopes composing ESO's Very Large Telescope
Gamma-ray pulsars detected by the Fermi Gamma-ray Space Telescope

An astronomical survey is a general map or image of a region of the sky (or of the whole sky) that lacks a specific observational target. Alternatively, an astronomical survey may comprise a set of images, spectra, or other observations of objects that 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.[1]

Surveys have generally been performed as part of the production of an astronomical catalog. They may also search for transient astronomical events. They often use wide-field astrographs.

  1. ^ See, for example, Lacy M, Riley JM, Waldram EM, McMahon RG, Warner PJ (1995). "A radio-optical survey of the North Ecliptic CAP". Monthly Notices of the Royal Astronomical Society. 276 (2): 614–626. Bibcode:1995MNRAS.276..614L. doi:10.1093/mnras/276.2.614.

Developed by StudentB