Aditya L1 shall be the primary area based Indian undertaking to observe the sun. The spacecraft shall be placed in a halo orbit across the Lagrange point 1 (L1) of the solar-Earth gadget, which is set 1.five million km from the Earth. A satellite tv for pc positioned in the halo orbit across the L1 factor has the principal benefit of constantly viewing the sun without any occultation/eclipses. this could provide a more benefit of observing the sun sports and its impact on space weather in real time. The spacecraft consists of seven payloads to take a look at the photosphere, chromosphere and the outermost layers of the solar (the corona) the use of electromagnetic and particle and magnetic field detectors. the use of the unique vantage point L1, 4 payloads without delay view the sun and the ultimate three payloads perform in-situ research of debris and fields on the Lagrange factor L1, thus supplying important medical research of the propagatory impact of solar dynamics within the interplanetary medium
Aditya L1 Science objective
The major science objectives of Aditya-L1 mission are:
- Study of Solar upper atmospheric (chromosphere and corona) dynamics.
- Study of chromospheric and coronal heating, physics of the partially ionized plasma, initiation of the coronal mass ejections, and flares
- Observe the in-situ particle and plasma environment providing data for the study of particle dynamics from the Sun.
- Physics of solar corona and its heating mechanism.
- Diagnostics of the coronal and coronal loops plasma: Temperature, velocity and density.
- Development, dynamics and origin of CMEs.
- Identify the sequence of processes that occur at multiple layers (chromosphere, base and extended corona) which eventually leads to solar eruptive events.
- Magnetic field topology and magnetic field measurements in the solar corona .
- Drivers for space weather (origin, composition and dynamics of solar wind .
The instruments of Aditya-L1 are tuned to observe the solar atmosphere mainly the chromosphere and corona. In-situ instruments will observe the local environment at L1. There are total seven payloads on-board with four of them carrying out remote sensing of the Sun and three of them carrying in-situ observation.
Aditya-L1 (Sanskrit: आदित्य, lit: solar,pronunciationi) is a deliberate coronagraphy spacecraft to take a look at the sun atmosphere, designed and developed by using the Indian space research employer (ISRO) and various other Indian research institutes. it’ll be inserted at approximately 1.five million km from Earth in a halo orbit across the L1 Lagrange point among the Earth and the solar in which it’s going to look at the solar surroundings, sun magnetic storms, and their effect at the surroundings around Earth.
it’s far the first Indian task devoted to observing the sun and is scheduled to be released aboard a PSLV-XL launch automobile at eleven:50 hrs. (IST) on September 2, 2023
Why sun is so bright
The Sun appears incredibly bright because it is a massive, hot, and extremely luminous star. Its brightness is primarily due to two key factors:
- Temperature: The Sun’s core has an incredibly high temperature, around 15 million
- degrees Celsius (27 million degrees Fahrenheit). This intense heat causes the Sun to emit a vast amount of energy in the form of electromagnetic radiation, including visible light. The higher the temperature of an object, the more energy it emits, and the brighter it appears.
- Fusion Reactions: In the core of the Sun, nuclear fusion reactions occur.
- These reactions involve the conversion of hydrogen nuclei (protons) into
- helium nuclei, releasing an enormous amount of energy in the process. This energy is emitted in the form of light and heat, and it constantly replenishes the Sun’s luminosity.
The combination of the Sun’s high temperature and ongoing nuclear fusion reactions results in a brilliant and steady output of light that we perceive as the Sun’s intense brightness. This brightness is essential for providing the heat and light necessary for life on Earth and is a product of the Sun’s incredible energy-producing processes.