Ronit marches ahead

May 26, 2010 By Leave a Comment

Fifth seed local favourite Ronit Singh Bisht eased into the third round with a straight-set win over compatriot Sai Teja Paladugu in the boys’ singles event of the ITF Asian Junior Tennis Championship here on Tuesday. Ronit defeated Paladgu 6-1 6-1 in the one-sided encounter.

Indians, in fact, dominated the boys’ singles event with Saurabh Singh, Man Singh Athare, Shahbaaz Khan, Yash Deshpande, Vaidik Munshaw and Sai Saran Reddy also moving into the third round. There was good news for the hosts in the girls’ singles event as well with Shweta Rana, Natasha Palha, Vidya Bharat (bye) and Vaniya Dangwal all moving into the third round.

The second day of the tournament also saw the day;s proceedings start off with teh doubles events at the RK Khanna Tennis Complex. Tuesday saw the pair of Aishwarya Aggarwal and Kyra Shroff sealing a 6-0 6-0 win over Nidhi Chilumula and Amrita Mukherjee to sail into the second round of the girls’ doubles.

After winning the girls’ singles’ first round tie against Namita Bal on Monday, Pakistan’s Ushna Suhail on Tuesday moved up in girls doubles in combination with local girl Natalia Khaniejo. In the boys’ doubles, Ronit and Kunal Anand survived a tough first round challenge from Suraj Konwar and Saurabh Patil with a 3-6 6-3 11-9 victory.

Results: Girls’ Singles: Shweta Rana (IND) beat Anna Clarice Patrimond (PHI) 6-4 7-5; Ayaka Okuno (JPN) beat Manya Nagpal (IND) 6-0 6-1; Natasha Palha (IND) beat Anastasya Prenko (TKM) 7-5 4-6 6-1; Sharon Sanchana Paul (IND) W/O against Vidya Bharat (IND); Riko Sawayanagi (JPN) beat Ankita Bhatia (IND) 6-4 6-2; Vaniya Dangwal (IND) beat Nattawadee Kotcha (THA) 6-3 6-2

Boys singles: Saurabh Singh (IND) beat Rithwik Rajshekhar Raman (IND) 6-2 6-1; Mansingh Athare (IND) beat Anirudh Jain (IND) 6-1 6-0; Shahbaaz Khan (IND) beat Yuki Muramatsu (JPN) 1-6 6-4 6-4; Wen-Chun Liang (TPE) beat Abhimanyu Singh (IND) 6-2 6-2; Yash Deshpande (IND) beat Arpit Sharma (IND) 7-5 7-5; Warit Sornbutnark (THA) beat Vilasier Khate (IND) 6-3 6-0; Ronit Singh Bisht (IND) beat Sai Teja Paladugu (IND) 6-1 6-1; Vaidik Munshaw (IND) beat Pulok Bhattacharya (IND) 6-1 6-1; Leander Lazaro (PHI) beat Garry Singh Amor (IND) 6-3, 7-6; Artem Tarasov (UZB) beat Maninder Singh (IND) 6-0 6-0; Chih-Jen HO (TPE) beat Rishabh Mehra (IND) 6-0 6-0; Sai Saran Reddy Byreddy (IND) beat Trivesh Singh (IND) 5-7 6-2 6-4; Justin To (HKG) beat Ajay Yadav (IND) 6-2 6-0

Girls doubles: Sanae Ota (JPN)/ Tanaporn Thongsing (THA) beat Shreya Pasricha (IND)/ Megha Sherawat (IND) 6-2 6-0; Aishwarya Agarwal (IND)/ Kyra Shroff (IND) beat Nidhi Chilumula (IND)/ Amrita Mukherjee (IND) 6-0 6-0; Namita Bal (IND)/Prathana G. Thombare (IND) beat Rajbir Kaur (IND)/Preethi Ujjini (IND) 6-0, 6-1; Ratnika Batra (IND)/Sharon Sanchana Paul (IND) beat Sowjanya Bavisetti (IND)/Ikttesh Chahal (IND) 6-3 6-3; Natalia Khaniejo (IND)/Ushna Suhail (PAK) beat Zainab Ali Sajjad (IND)/Ankita Bhatia 2-6 7-6 (4) 10-6; Nova Patel (IND)/Rishika Sunkara (IND) beat Bhuvana Kalva (IND)/Natash Palha (IND) 6-2 6-3

Boys doubles: Kunal Anand (IND)/Ronit Bisht (IND) beat Suraj Konwar (IND)/Saurabh Patil (IND) 3-6 6-3 11-9

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Jupiter made comet its temporary moon for 12 years in mid-20th century

September 14, 2009 By Leave a Comment

Washington, September 14 (ANI): An international team of astronomers has discovered that Jupiter had captured the comet 147P/Kushida-Muramatsu as its temporary moon in the mid-20th century, in an irregular orbit for about twelve years.

There are only a handful of known comets where this phenomenon of temporary satellite capture has occurred and the capture duration in the case of Kushida-Muramatsu, which orbited Jupiter between 1949 and 1961, is the third longest.

The phenomenon was detected by an international team led by Dr. Katsuhito Ohtsuka that modeled the trajectories of 18 “quasi-Hilda comets”, objects with the potential to go through a temporary satellite capture by Jupiter that results in them either leaving or joining the “Hilda” group of objects in the asteroid belt.

Most of the cases of temporary capture were flybys, where the comets did not complete a full orbit.

However, Dr. Ohtsuka’s team used recent observations tracking Kushida-Muramatsu over nine years to calculate hundreds of possible orbital paths for the comet over the previous century.

In all scenarios, Kushida-Muramatsu completed two full revolutions of Jupiter, making it only the fifth captured orbiter to be identified.

According to Dr. David Asher, “Our results demonstrate some of the routes taken by cometary bodies through interplanetary space that can allow them either to enter or to escape situations where they are in orbit around the planet Jupiter.”

Asteroids and comets can sometimes be distorted or fragmented by tidal effects induced by the gravitational field of a capturing planet, or may even impact with the planet.

The most famous victim of both these effects was comet D/1993 F2 (Shoemaker-Levy 9), which was torn apart on passing close to Jupiter and whose fragments then collided with that planet in 1994.

Previous computational studies have shown that Shoemaker-Levy 9 may well have been a quasi-Hilda comet before its capture by Jupiter.

“Fortunately for us Jupiter, as the most massive planet with the greatest gravity, sucks objects towards it more readily than other planets and we expect to observe large impacts there more often than on Earth,” said Dr. Asher.

“Comet Kushida-Muramatsu has escaped from the giant planet and will avoid the fate of Shoemaker-Levy 9 for the foreseeable future”, he added. (ANI)

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