ANSWERS GRADED A+ LATEST UPDATE.
What are the differences between open star clusters and
globular star clusters? ANS >>> open clusters are less
concentrated, younger, and have fewer stars
Which of the following is FALSE? ANS >>> A nova is more luminous
than a supernova
What kind of a gas cloud can collapse and form stars? ANS >>>
The gas cloud must have a mass that exceeds the Jeans mass so
that gravity overcomes the internal pressure in the cloud
What is the mass of the black hole at the centre of the Milky
Way? ANS >>> 4 million solar masses