Question

To be known as a constellation, a collection of star should form
A. a geometric form
B. a recognizable shape
C. a straight line
D. a circular form

Answer 1

Recall the concept of constellation. Recall the basic condition for a group of stars to be recognized as a constellation. Describe about the features of constellation

Complete step by step answer:
A constellation may be a group of stars forming a geometric shape, straight line or a circular form but not necessarily always a geometric shape, straight line or a circular form. The shape may be anyone.
Therefore, to be known as a constellation, a collection of stars should not form a geometric form, straight line or a circular form.
Hence, the options A, C and D are incorrect.

A constellation is a group of stars that form a particular and recognizable shape in the sky.
To be known as a constellation, a collection of stars should form a recognizable shape.
Hence, the correct option is B.

So, the correct answer is “Option B”.

Additional Information:
The constellations may form different patterns like Leo the Lion or Taurus the Bull.
There are 88 official constellations.
Many of the known constellations are named according to the Greek, Roman or ancient middle Eastern cultures.
One can observe a constellation in the sky if he/she knows how that constellation looks and where the see that particular constellation.
One of the well-known constellations is Ursa Major or Saptarshi. This constellation consists of seven stars having a shape of question mark.
The shape of any constellation remains the same all time and these constellations move from east to west.

Note:
A constellation may form a geometric shape, a straight line or circular form but these are not only the shapes that the group of stars can form. The shapes may be different.