The UPSC exam pattern has seen a change in recent times with much focus being shifted to the issues related to the present times. Apart from being well versed in history and other related subjects, UPSC now demands its aspirants to focus more on Current Affairs, Environment and Astronomy. In short, the exam is preparing its students to be all-rounders. Since the students are expected to cover a vast amount of portions in all the subjects, it becomes difficult to focus on the main topics.
The aspirants must prepare for the Astronomy paper in their prelims exam. To prepare for Astronomy subjects, the students must study climatology, physical geography, climatic regions, Geomorphology, and other related topics.
According to a Top IAS Academy, the students must prepare for the following in the Astronomy subjects. They are as follows.
- Star Formation – life cycle of a star, stellar Evolution
- The Universe, Dark Energy, Big Bang Theory, Gravitational Waves
- Formation of the solar system – Nuclear Disc model – Neo-Laplacian model
- The atmosphere, internal structure of Sun and solar wind
- Solar system planets and other objects of the solar system
These topics are considered important for the UPSC exams. Though there are other topics to cover, one must ensure that they are well-versed in the above topics. Let’s take a brief look at the following topics.
Many Steps are involved in the Evolution of a Star
It is believed that the birthplace of stars is Nebulae. A nebula is nothing but gas clouds which mostly consist of Helium and Hydrogen. This topic must cover everything starting from the birthplace of the star to its death which is the Neutron Star or white dwarf. The topic that comes under star evolution is the
- Protostar – The formation of Star at the early stage
- T Tauri Star
- Main Sequence Star
- Red Giant and Red Supergiant
- Planetary Nebula and SuperNova
- Neutron Star or White Dwarf or Black Hole
Once you have completed the star evolution, you can move on to the next chapter which is about the universe, big bang theory and more. It is advisable that the students follow the table content in order to understand astronomy better. If they skip one topic, it will make it difficult for them to understand the other. Hence it is advisable to follow the topic in its orderly pattern.
There are many Contents that cover the Big Bang Theory and the Universe
- The Big Bang Theory
- Big Crunch
- RedShift or Doppler Shift and Blueshift
- CMD – Cosmic Microwave Background
- Accelerating Expansion of the universe
- Dark Matter
- Dark Energy
- Gravitational Waves
- General Theory of relativity by Einstein
- Gravitational lensing
- Gravitational waves and its importance
Solar System and its formation is the most prime part of Astronomy
The topics that must cover under the solar system formation are
- Formation of Sun
- Planets formation
- Planetary differentiation and iron catastrophe
The contents that must be included under the internal structure of Sun Solar Wind and Atmosphere are
- Components of Solar System
- About the Sun
- Internal Structure of the Sun and its Atmosphere
- The solar wind, its effects on Aurora and other planets
- Solar prominence
- Solar flares
- Corona Plasma
The final chapter students must cover is about the planets. The aspirants must learn all about the inner and outer planets as they come under the prime questions.
It is not enough for the students to just read the astronomy sections. They must write down the important points so that it will be helpful for them in the future. They must keep practicing by writing the answers so that they become well-versed in the astronomy subjects. Apart from learning through books and net sources, they must also make it a point to read the astronomy section in the newspaper daily so that it gives them further information. Make short notes of the above topics so that it will be easy for you during the exam. The prime point in Astronomy session is not reading but understanding it. Once you understand the topic it will become easier for you to learn the Astronomy subject. Check Out Here – https://timesofindia.indiatimes.com/home/education/news/upsc-epfo-syllabus-2020-check-detailed-syllabus-exam-scheme-weightage-here/articleshow/73549103.cms – Recent Updates of UPSC Syllabus.