Question

parallactic second?????????????????​

Answer 1

Parallactic second is the unit of distance because parallactic second is abbrevistion of parsec. Parsec = Parsec is the unit for larger distances.It is the distance at which a star would make parallax of one second of arc. 1 parsec =3.26 light years.

Answer 2

Answer:

Parallactic second or parsec is a unit of large distances used by the astronomers to measure large distances outside our solar system. One parsec is defined as the distance between the line drawn from the centre of the Earth and the Sun making an angle of 1 second with each other.