March 28, 2018 No comments
Scientists using Kepler 2 telescope have discovered hot, metallic, Earth-sized planet named K2-229b orbiting dwarf star located 260 million light years away. They had employed Doppler spectroscopy technique also known as ‘wobble method ‘ to discover and characterise this faraway planet. K2-229b
K2-229b planet is almost 20% larger than Earth but has mass which is over two-and-a-half times greater. It is located very close to its host star (0.012 AU, around a hundredth of the distance between Earth and Sun), which itself is medium-sized active K dwarf in Virgo Constellation.
K2-229b orbits its star every fourteen hours. Its day side temperature reaches over 2000 degrees Celsius. Scientists calculated size, position and mass of K2-229b by measuring radial velocity of star and finding out starlight ‘wobbles’ during orbit, due to gravitational tug from planet, which changes depending on planet’s size.
K2-229b has same high density that of Mercury-like planets. It is also innermost planet in system of at least three planets, though all three orbit much closer to their star than Mercury. Significance
The dense, metallic nature of K2-229b has numerous potential origins. The one hypothesis is that its atmosphere might have been eroded by intense stellar wind and flares, as it is so close to its star. Another possibility is that K2-229b was formed after huge impact between two giant astronomical bodies in space billions of years ago – much like theory that Moon was formed after Earth collided with body size of Mars. K2-229b is similar to Mercury, knowing more about it can potentially give more clues of formation our planets in our own solar system.
Wednesday, March 28 2018
March 28, 2018 No comments
H.E. Mr. Rustam Minnikhanov, President of the Republic of Tatarstan along with delegation from Tatarstan met Hon'ble Governor Sri E.S.L. Narasimhan at Raj Bhavan on Tuesday. Governor held discussions with the visiting dignitary on subjects of mutual intereTuesday, April 17 2018
Government of Andhra Pradesh: Agriculture Department – Budget Estimate 2017-18 – Budget Release Order for Rs. 1,48,50,000/- (Rupees One crore Forty eight lakhs Fifty thousands only) – Administrative SanctionMonday, February 19 2018
Tamil Nadu Government : PENSION – Contributory Pension Scheme – Accumulations at the credit of subscribers to the Contributory Pension Scheme (both Employees and Employers Contributions) – Rate of interest for the financial year 2017-2018Saturday, February 17 2018
Tripura State Government: Pre-planned attack launched by IPFT(NC) group miscreants on Sri Ramendra Debbarma, CPI(M) candidate for 12-Takarjala (ST) constituency and CPI(M) Local Committee office at TakarjalaWednesday, February 14 2018
Finance Department – Loans and Advances – House Building Advance – Sanctioned to Sri K.Adinarayana, Deputy Secretary to Government, Finance Department towards H.B.A.(Site-cum-Construction) – Release of 2nd instalment – Sanctioned – Orders – IssuedThursday, February 8 2018
Tamil Nadu State Government News : PENSION – Contributory Pension Scheme – Accumulations at the credit of subscribers to the Contributory Pension Scheme (both Employees and Employers Contributions) – Rate of interest for the financial year 2017-2018Friday, February 2 2018
Statutory Boards/State Transport Undertakings – Payment of Adhoc Bonus to the employees in ‘C’&’D’ groups in Statutory Boards and Pongal Prize to Pensioners/Family Pensioners of Statutory Boards/State Transport UndertakingsFriday, February 2 2018