Astronomical survey

This picture has been made by putting together, two or more pictures; That kind of picture, can be called, a composite image.--The image shows the GOODS-South field; The picture came from (or results of) a deep (astronomical) survey using two of the four giant 8.2-metre telescopes that make up ESO's Very Large Telescope.

An astronomical survey is a general map or image of a region of the sky. Astrophotography can be used to make a picture (or images).

Other kinds of astronomical surveys

Another kind of astronomical survey can be made of some pictures, or spectra, or other observations of objects that share a common type or feature. Astronomical surveys are often used to identify new objects and study large-scale structures in the universe.

Other information

Spectra can include measurements from X-ray astronomy.

Sources

  1. 1 2 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.