Question

is used as a standard unit to measure the mass of other stars and celestial objects in the Universe.

• A. Earth's mass
• B. Solar mass
• C. Lunar mass

Answer 1

The correct option is B Solar mass

The mass of the Sun is used as a standard unit to measure the mass of other stars and celestial objects in the Universe.
Solar mass is denoted by ${\text{M}}_{Sun}$ or ${\text{M}}_{\odot }$, and
$1{\text{M}}_{Sun}$ or $1{\text{M}}_{\odot }=$$2\times {10}^{30}\text{kg}$