Question

Give the full explanation about astronomical conjunction ????

Give a single amount of explanation?? It's part ?? How does it occur ?? And why it happen is the celestial sphere ??

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(Please I request give full explanation!!)​

Answer 1

Answer:

Spherical astronomy, or positional astronomy, is a branch of observational astronomy used to locate astronomical objects on the celestial sphere, as seen at a particular date, time, and location on Earth. It relies on the mathematical methods of spherical geometry and the measurements of astrometry.

Diagram of several terms in positional astronomy

This is the oldest branch of astronomy and dates back to antiquity. Observations of celestial objects have been, and continue to be, important for religious and astrological purposes, as well as for timekeeping and navigation. The science of actually measuring positions of celestial objects in the sky is known as astrometry.

The primary elements of spherical astronomy are celestial coordinate systems and time. The coordinates of objects on the sky are listed using the equatorial coordinate system, which is based on the projection of Earth's equator onto the celestial sphere. The position of an object in this system is given in terms of right ascension (α) and declination (δ). The latitude and local time can then be used to derive the position of the object in the horizontal coordinate system, consisting of the altitude and azimuth.

The coordinates of celestial objects such as stars and galaxies are tabulated in a star catalog, which gives the position for a particular year. However, the combined effects of axial precession and nutation will cause the coordinates to change slightly over time. The effects of these changes in Earth's motion are compensated by the periodic publication of revised catalogs.

To determine the position of the Sun and planets, an astronomical ephemeris (a table of values that gives the positions of astronomical objects in the sky at a given time) is used, which can then be converted into suitable real-world coordinates.

The unaided human eye can perceive about 6,000 stars, of which about half are below the horizon at any one time.[citation needed] On modern star charts, the celestial sphere is divided into 88 constellations. Every star lies within a constellation. Constellations are useful for navigation. Polaris lies nearly due north to an observer in the Northern Hemisphere. This pole star is always at a position nearly directly above the North Pole

Answer 2

Explanation:

• See in astronomical terms conjunction involves close body approach of two or more solar system bodies or it can even have a close approach of a single solar system body with another object in sky.
• Now it's important to remember that these conjunctions are only from our perspective here on the earth, means objects never actually come close together. (perspective here means representing three dimensional objects on a two dimensional surface so to give write impression of their height, width, depth and position in relation to each other)
• Now how does it occur ? answer: when two sky objects have same ecliptic longitude (observed from earth) they occur all the time, some spectacularly, others in routine.

EXTRA INFORMATION : Conjunctions between moon and planets happen each month.