The angle between the observer's meridian and declination circle of a heavenly body, is known as

The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude:

A

Mean sun

B

True sun

C

Vernal equinox

D

All the above

If θ and δ be the latitude of an observer and declination of a heavenly body respectively, the upper culmination of the body will be south of zenith if its zenith distance, is

A

δ - θ

B

θ - δ

C

θ + δ

D

$$\frac{1}{2}$$ (θ - δ)

The angular distance of a heavenly body from the equator, measured along its meridian, is called

A

Declination

B

Altitude

C

Zenith distance

D

Co-latitude

The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above

A

Equator

B

Horizon

C

Pole

D

None of these

The horizontal angle between the true meridian and magnetic meridian at a place is called

A

azimuth

B

declination

C

local attraction

D

magnetic bearing

A negative declination shows that the magnetic meridian is to the

A

eastern side of the true meridian

B

western side of the true meridian

C

southern side of the true meridian

D

none of the above

A heavenly body which takes nearly the same time to complete one rotation and one revolution is

A

an asteroid

B

a comet

C

moon

D

mars

Heavenly body- এর বাংলা পরিভাষা কোনটি?

A

স্বর্গীয় দেহ

B

জ্যোতিষ্ক

C

প্রেরিত দূত

D

ভারী দেহ

Right ascension of a heavenly body is its equatorial angular distance measured

A

Westward from the first point of Libra

B

Eastward from the first point of Aeries

C

Westward from the first point of Aeries

D

Eastward from the first point of Libra

The position of a heavenly body on the celestial sphere can be completely specified by

A

Its altitude and azimuth

B

Its declination and hour angle

C

Its declination and right ascension

D

All the above

The angle between the observer's meridian and declination circle of a heavenly body, is known as

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