TOI-1789b

Exoplanet Search and Study Group, Physical Research Laboratory (PRL Ahmedabad), Prof. Led by Abhijit Chakraborty, a new exoplanet has been discovered orbiting very close to a star 1.5 times the mass of our Sun.

The discovery was made using the PRL Advanced Radial-Speed ​​Abu-Sky Search (PARAS) optical fiber-fed spectrograph, the first of its kind in India, at PRL’s 1.2 m telescope at the Mount Abu Observatory.

Using PARAS capable of measuring the mass of an exoplanet, it was found that the mass of the exoplanet was 70% and 1.4 times the size of Jupiter. These measurements were made between December 2020 and March 2021.

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