The coordinates of Capricornus in the celestial sphere are: Right Ascension 20h 06m 46.4871s - 21h 59m 04.8693s and Declination −8.4043999°- −27.6914144°.
No, because there is no such thing as the celestial sphere. So there is no inner surface of a celestial sphere.
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celestial sphere A+
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the celestial spherecelestialtrue
The Tropic of Capricorn originates from the constellation Capricornus, which marked the southern limit of the plane of the earth's orbit with the celestial sphere, along which the sun appears to move as viewed from the earth in ancient times.
No plants have ever been observed on the Celestial Sphere.
celestial sphere
The celestial sphere has the Earth at the centre and all the objects in the sky situated on the sphere at infinite distance. Positions of the objects are described by two coordinates, which could be azimuth and elevation, or, in geocentric coordinates, declination and hour-angle.
Celestial Equator
celestial globe is a physical model of celestial sphere