Astronomical observatories have been available since ancient times, and many cultures set aside special sites for astronomical observations. The thing modern observatories have that was missing from these older observatories until about 1610 was telescopes. With the invention of telescopes in 1610, astronomer could more precisely study the locations and the movement of the planetary bodies
Explanation: Telescope can simply be defined as an optical instrument used to view distant objects. When distant objects are viewed from a telescope, the image becomes magnified. Types of telescope include; optical telescope, infrared telescope, X-ray and ultra-violet telescopes. Astronomical observation has been made before the discovery of the telescope around the year 1610, Astronomical tools in use prior to this time include: astrolabe, nocturnal, the armillary sphere, the cross staff and so on.
The need for affiliation corresponds to the belongingness level of needs in abrahm maslow's hierarchy of needs. Belongingness is the third level of needs in abrahm maslow's hierarchy of needs. The third level represents the social need for affiliation, also known as love and belonging.
