## What is the meaning of central meridian?

Central meridian (planets), the meridian that goes through the centre of the body’s disc as seen from the point of view of the observer. Central meridian (map projections), a line used to define the origin of some map projections.

What is important about the central meridian?

The Prime Meridian is important because it allows us to define the countries that are in the eastern hemisphere and the western hemisphere.

What is the difference between prime meridian and central meridian?

The Prime Meridian is the longitude line on earth defined as zero, and it runs through Greenwich, England. A central meridian is the center of a map projection where x = 0, and may be any longitude line.

### Is central meridian and standard meridian same?

Standard meridian is the longitude or the meridian which is used for determining standard time of a country. A Central meridian is the center of a map projection where x = 0, and Central meridian can be any longitude line. …

What is the meridian at 180 * called?

The international date line, established in 1884, passes through the mid-Pacific Ocean and roughly follows a 180 degrees longitude north-south line on the Earth. It is located halfway around the world from the prime meridian — the 0 degrees longitude line in Greenwich, England.

What is central meridian in UTM?

The central meridian is the centerline of longitude for projection systems. Projected coordinate systems often use it as a reference point for an x-origin. For example, the state plane and UTM projection systems use a central meridian.

#### Which is considered as central meridian of India?

The Standard Meridian of India has a longitude of 82°30’E. This Standard meridian passes through Mirzapur in Uttar Pradesh and it is considered as the standard time for the whole country.

When it is 1 pm in Greenwich it is 6 30 pm in India Why is it so?

This is because the earth rotates 360° in 24 hours, 1° in 4 minutes. The standard meridian of India is 82° 30′ E, and that of London is 0°. This means a difference of 4 minutes x 82.5 = 330 minutes = 5.5 hours. So when it is 12 noon in London, it is 5.30 p.m. in India.

What is the central meridian in India?

The longitude of 82½° E (82° 30’E) is considered as the standard meridian. The local time stated or mentioned at this meridian is considered as the standard time for the whole country. This is called as the Indian Standard Time (IST).