Celestial coordinate system indicator

Abstract

A representation instrument of celestial coordinate systems is formed by a celestial sphere model, an earth model, a support, a first auxiliary ring, a second auxiliary ring, a third auxiliary ring first half-ring, a third auxiliary ring second half-ring and a sliding handle; the celestial sphere model is fixed on the support in a rotatable mode; the inner wall of the celestial sphere model comprises the two auxiliary rings which are perpendicular to each other; the earth model is fixed on a shaft rod which is arranged in the center of the celestial sphere model; the sliding handle is used for controlling rotation of the two auxiliary rings which are perpendicular to each other and are arranged in the celestial sphere model through a magnet; the inner diameter of a third auxiliary ring is equal to the outer diameter of the celestial sphere model; the third auxiliary ring can be fixed on the outer wall of the celestial sphere model if necessary. According to the representation instrument of the celestial coordinate systems, learners can analyze the four celestial coordinate systems, the relation between the four celestial coordinate systems and the relation between the celestial coordinate systems and a celestial sphere; the functions which can be shown through the traditional celestial globe can be achieved; the mind and hand capability of students can be increased and the intelligence of the students can be stimulated through operation on the auxiliary rings of the students.

Description

technical field [0001] The invention relates to a geography academic tool, in particular to a celestial coordinate system display instrument. Background technique [0002] The celestial spheres currently used for teaching and demonstration either set the earth model in a transparent celestial sphere model, which is used to represent the range of celestial bodies other than the earth in a single static state; or the structure is too complicated, which makes the cost expensive and cannot be popularized; None of the instruments can realize various celestial coordinate systems, the mutual relationship between various celestial coordinate systems, and the relationship between various celestial coordinate systems and the celestial sphere. These problems usually make the expression of the celestial coordinate system lack of intuition, and students with weak imagination cannot understand various celestial coordinate systems, the relationship between various celestial coordinate syst...

AI Technical Summary

Problems solved by technology

[0002] The celestial spheres currently used for teaching and demonstration either set the earth model in a transparent celestial sphere model, which is used to represent the range of celestial bodies other than the earth in a single static state; or the structure is too complicated, which makes the cost expensive and cannot be popularized; None of the instruments can realize the various celestial coordinate systems, the relationship between various celestial coordinate systems, and the relationship between various celestial coordinate systems and the celestial sphere.

These problems usually make the expression of the celestial coordinate system lack of intuition, and students with weak imagination cannot understand various celestial coordinate systems, the relationship between various celestial coordinate systems, and the relationship between various celestial coordinate systems and The relationship between the celestial sphere and the teacher's teaching, or when the country popularizes astronomical knowledge to the public, greatly increases the difficulty of teaching

At present, there is no teaching device that can demonstrate various celestial coordinate systems, the interrelationships between various celestial coordinate systems, and the relationship between various celestial coordinate systems and the celestial sphere

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