Hello Gayatri,

Here i am mentioning few steps through which you can become an astronomer in future are as follow :

•  high school as well as intermediate with physics, mathematics, and chemistry
• a bachelor’s degree in science,
•  a master’s degree in science
• Pursue a Ph.D in a particular area of astronomy.
• Complete your Ph.D and take the qualifying exams.
• Learn how to use science-related software programs.
• Getting a Position as an Astronomer

Hope it helps.

Thank you,