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Milestones of Jyotirvidya Parisanstha

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1944, August 22
Foundation of Jyotirvidya Parisanstha: On Ganesh Chaturthi, August 22, 1944 some eminent citizens of Pune formed JVP, primarily for the spread of knowledge of astronomy among the public also to make their own contribution as far as possible. It was the first association of its kind and remained so far for a few decades. The founder members of Jyotirvidya Parisanstha are: N. C. Kelkar, Prof. D. D. Kapadia, Mr. K. R. Kanitkar, Mr. J. S. Karandikar (Editor, Kesari), Datto Vaman Potdar, J. R. Gharpure, Ranglor G. S. Mahajani, Prof. G. L. Chandratreya, Prof. M. L. Chandratreya, Mr. T. G. Dhavale, Prof. Sakharampant Apte, Prof. L. V. Gurjar, Prof. N. V. Kinkar, Pt. Raghunathshastri Patwardhan, Mr. Babasaheb Patwardhan, Mr. V. D. Goreshastri, Mr. D. G. Kale, Mr. B. G. walinbe, Mr. D. G. Dhavale, Mr. S. N. Harip, Prof. K. V. Kelkar, Prof. R. P. Shintre, Mr. V. V. Apte, Mr. T. B. Hardikar.
Parisanstha office was at 410, Kasaba Peth, Pune 411002.
Founders
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| 1944 Parisanstha started working in Nana-Wada, a school run by Deccan Education Society.
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| | | | 1944 Membership of Parisanstha was classified into four classes: 1) Class 1: Life Members: Members paying membership fee Rs. 500 or more 2) Class 2: Life members: Members paying membership fee Rs. 100 or more 3) Class 3: Annual members: Members paying membership fee annually Rs. 3 and 4) Class 4: Annual members: Members paying membership fee annually Rs. 1 (Members of this class can not apply for governing council elections)
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| 1944-45 Constitution of the Parisanstha was written by Prof. Sakharampant Apte, Mr. Tryambakrao Dhavale and Prof. S. K. Deo.
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| 1945, July Parisanstha was registered as Charitable Trust.
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| | 1945-46 Prof. M. L. Chandratreya, Prof. G. R. Paranjape, Prof. S. K. Deo, Mr. Indradev read Surya-Siddhant at Yandyavalkya Ashram. Prof. Chandratreya also conducted study circle on Surya Siddhant every sunday at Nana-Wada.
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1946 Prof. M. G. Sathe donated 3.5" refractor telescope to JVP.
3 inch refractor
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| 1946-47 Prof. Chandratreya and Prof. Gurjar conducted study circle every Sunday at Nana-Wada
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| | 1948 The first lecture series on the topics related to Sun: सौरव्याख्यानमाला (Saur-Vyakhyan-Mala). Lecture series consisted of 15 lectures. The lecture series was inaugurated by Dr. Raghunath Paranjpe.
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| | 1949 The booklet on Star maps published by JVP win the award by Deccan Vernacular Society and the same was sanctioned by Government of Mumbai Region for the schools.
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| 1949 JVP started पंचांग कृती वर्ग (Panchang Kruti Varga) (Course on Panchanga)
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| | | 1949, December 9-20 Lecture series and the first astronomical exhibition. Theme: सूर्यकुल (Suryakul) i.e. solar system. This second lecture series was consisted of 12 lectures and was inaugurated by Dr. Babasaheb Jaykar, Vice-Chancellor, University of Pune. Exhibition consisted of charts, astronomical maps and photographs.
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| 1950s JVP started Basic Astronomy Course for the 10th standard students.
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| | 1952, February 4-11 Third lecture series on cosmology: तारकानगरी (Tarakanagari). Lecture series was inaugurated by Dr. Nanasaheb Parulekar, editor, Sakal. Lecture series was consisted of eight lectures.
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| | | | 1952 After independence of India; Government of India invited some of the astronomical experts for making Indian Solar Calendar. It is authorised solar calendar regularly published by Government of India. Vice-president of Jyotirvidya Parisanstha, Mr. J. S. Karandikar was appointed on Indian Solar Calendar Committee (भारतीय पंचांग समिती) and Secretary of JVP, Prof. M. L. Chandratreya was appointed on Standing Astronomical Board (स्थायी ज्योतिष्यक समिती).
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| 1953, February Fourth lecture series on moon: चंद्रप्रभा (Chandraprabha). Lecture series was inaugurated by Mr. L. M. Nadakarni
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| | 1954, February 7-14 Fifth lecture series on astronomical observatories: वेधसाधने व वेधशाळा (Vedhasadhane Va Vedhashala). Lecture series was inaugurated by Mr. Shankar Balaji Dhavale, Sr. Judge. 
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| 1955 Lecture series on research by Lokamanya Tilak in the field of astronomy
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| 1959, March JVP conducted Refresher Course in Astronomy for school teachers
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| 1959 JVP organised a lecture series covering topics on evolution of astronomy through ages from Vedic astronomy till radio astronomy.
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| | 1960, March 3 Jyotirvidya Parisanstha was announced as "Research and Cultural Institute" by Director of Education, Government of Maharashtra. Parisanstha also received grant from Government of Maharashtra.
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| 1960, March 29 JVP organized a public show of an astronomical movie, "This Island Earth" at Vijay theater, Pune
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| | 1960, November 13 JVP organised a seminar on Indian National Solar Calendar being published by Government of India. Two of the JVP members work on the committee appointed by Government of India for the respective purpose.
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| | 1960-61 JVP started a study circle for advance studies in astronomy. Members studied Spherical trigonometry, Mathematical astronomy, Spectroscopy and Celestial mechanics in the first year.
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| | | 1962-63 Study circle for advance studies continued to work in this year also. The topics studied this year were: To calculate dates of Diwali and Ester, Mathematics of relativity theory, Spectroscopy, positional astronomy for planets, depleted month in Hindu calendars, research by Major Gadre
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| | | | | | 1962, December Directorate of Extension Programs for Secondary Education (National Council of Educational Research and Training) organized "Science Fair" in association with Jyotirvidya Parisanstha. Executive members of JVP delivered lectures on December 1st on the following topics: 1) Nakshatras and Zodiacal constellations (Prof. M. L. Chandratreya), Sun and Solar system (Prof. J. B. Kumathekar), Stars, Nebulae, galaxies and universe (Princ. G. R. Paranjpye), Artificial satellites (Dr. M. V. Chipalunkar). JVP also conducted star party on the evening of 1st December and early morning on 2nd December at four different places: Rasta Peth Educational School, Ahilyadevi Highschool, Nutan Marathi Vidyalay, Modern Highschool.
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| | 1963, February 28 to March 3 Mr. Raghavendra Rao Udyavar organised a lecture series in association with Jyotirvidya Parisanstha on the subject, "Astronomy in Rugved" at New English School, Ramanbag.
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| | 1963, June 26 Jyotirvidya Parisanstha organised science film shows in association with United States Information Service at Bhave Highschool, Pune. Four scientific films were shown in the program: 1) Our Nearest Star 2) The Force of Gravity 3) Magnetic Force 4) Shape of the Earth
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| | 1964 Study Circle was active at Jyotirvidya Parisanstha. The topics studied were: Astronomy for Marathi Encyclopedia, Observation of double star through telescope, Vedic Religion based on Scientific Astronomy, Mathematics of planetary orbits
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| | 1964 Jyotirvidya Parisanstha conducted two lecture series for college students: 1) Present nature of astronomical studies 2) Tensor calculus for advance astronomical studies
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| | 1965, May 20 to 30 Jyotirvidya Parisanstha, College of Engineering, Pune and Kirloskar Magazine jointly organised an course on astronomy at Nutan Marathi Vidyalay. 35 people attended the course.
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| | 1965-66 Study circle was active in the Parisanstha. Topics discussed were: orbit of Ikeya Seiki comet, artificial satellites, experiments for astronauts, spherical trigonometry, Surya-siddhant
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| | 1965-66 Members of Parisanstha built reflector telescope for observations. Members who took special efforts were: Mr. Ravindra Raste, Mr. Ravindra Nene, Mr. Chandramohan Navalekar, Mr. M. B. Pant, Mr. Y. R. Nene.
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| | 1966, May 14 Jyotirvidya Parisanstha and United States Information Service jointly organised a film show at Perugate Bhave Highschool. Films shown were: 1) Gemini VI and VII-Rendezvous, 2) Savanah, 3) Destination Man
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| | | 1966-67 Study circle was active in the Parisanstha. Discussion with experimental demonstration, photographs, charts, maps, data books and different items of equipment used in astronomical and astrophysical work were arranged by Dr. M. W. Chipalunkar in the University Department of Physics. Variuos topics in astronomy and astrophysics were dealt with.
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1969-70 Silver Jubilee year of Jyotirvidya Parisanstha. This year founder chairperson of Parisanstha, Prof. D. D. Kapadia and another founder member, Prof. M. L. Chandratreya passed away. Hence the programs for the silver jubilee were arranged in the year 1971. On 25 July 1971, a program was organised at New English School, Tilak Road. On this occasion, senior founder members of Parisanstha were felicitated. Prof. N. M. Athavale donated a self made 4" refractor telescope to Parisanstha.
4 inch refractor
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| 1970, November 14 Office of Parisanstha shifted to Princ. G. R. Paranjapye's Bungalow.
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| | 1971-72 Study circle was active at Parisanstha. Topics discussed at the meetings of study circle were: Dates of space missions launching by USA and USSR, Relativity theory, Energy of body moving in orbit, polarization of light, Birth place of Bhaskaracharya
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| | 1971, May 14 Telescopic observations of occultation of beta-Scorpios by Jupiter at Nutan Marathi Vidyalay. JVP member, Mr. Kajarekar photographed the event through the telescope at E.R.D.L. lab at Pashan.
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| | 1971, November 21 Jyotirvidya Parisanstha, Marathi Vigyan Parishad, National Chemical Laboratory and Srushti Dnyan Magazin organised a first death anniversary of Dr. Sir Chandrashekhar Venkatraman
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| 1974-75 Parisanstha's office shifted from Prof. G. R. Paranjape's residence to Dnyan Prabodhini
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| | 1974-75 Study circle was active at Parisanstha. Topics discussed in the study circle were: concept of month, solar eclipse, Canopus (Agastya) star, lunar eclipse, vedic science, why stars blink, outer planets' positional astronomy
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| | | 1975-76 Study circle was active at Parisanstha. Topics discussed in the study circle were: comet West, lunar eclipse on 13 May, science of black holes, possibility of extra terrestrial life, science in ancient Indian books, meaning of western names of planets, mathematics for positional astronomy of planets
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| | 1975, July to September Parisanstha organised a course for 10th class students, teaching them astronomy and geography. The course was conducted on every sunday at New English School, Tilak road. Mr. M. N. Gokhale and Mr. Y. R. Nene conducted the course.
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| | 1976-77 Study circle was active at JVP. Topics studied at study circle: planetary orbits, lunar months, satellites of Jupiter, Makar Sankranti, blinking and colour variation of stars, scattering of light, Nehru planetarium at Mumbai, orbits of earth and moon.
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| | 1977, March 20 Jyotirvidya Parisanstha's office shifted to new building of Tilak Smarak Mandir. The office is being shared by Jyotirvidya Parisanstha and Marathi Vigyan Parishad.
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| | | | | 1977-78 Study circle was active at JVP. Topics studied at study circle: Orbits of earth and moon, Extra month (Adhik Mas) or depleted month (Kshaya Mas) in Hindu calendar, occultation of Aldebran by moon in October 1978, Retrograde motion of planets, Roche limit for planets, effect of moon on cyclones and high tides, Lunar eclipse on 24 March 1978, Nodes for eclipses, prediction of Pluto's position in sky in 1912 by Vyankatesh Bapuji Ketkar, how black holes were discovered when there is no light is coming out from it, northward and southward motion of Sun in sky.
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| 1977, October 9 Annual membership fee of JVP was increased from Rs. 3 to Rs. 5.
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| | | | 1978-79 Study Circle was active at JVP. Topic studied at study circle were: Laser rays and their use for communication with artificial satellites and holography, mathematical methods to calculate conjunctions and oppositions of Sun-Moon, variable stars, occultation of stars and planets by moon, period of moon to be visible after new moon, moon phases, experiments to be done at solar eclipse on 16 February 1980, sun spots, change in orbit of Skylab while returning to earth
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| | 1985 An astronomical course was conducted which included one star gazing session every month. The course was conducted at Nutan Marathi Vidyalay, Pune.
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| 1985 From February, article series was started in Daily Sakal. Articles were published on every first and third Sunday.
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1991, January 12-13 First Indian Amateur Astronomers' Meet was held at Pune. This meet was jointly hosted by Jyotirvidya Parisanstha and IUCAA.
AAA meet
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| 1992, December 30 Nobel Laureate S. Chandrashekhar visited JVP.
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1993 - 94 Golden Jubilee year of Parisanstha. Road shows with telescopes were done through the year.
road shows
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| 1994, February 8 Fred Hoyle visited JVP.
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| 1994 Astronomical Exhibition in Pune at Tilak Smarak Mandir
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| 1994, October First Telescope Making Workshop conducted at JVP.
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| | 1996 Basic Astronomy Course was conducted with around 15 lectures and one overnight observational session. It then continued as a yearly program of JVP.
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| | 1997 For the first time in Indian time zone, Meteor Shower Observation Group started working in JVP. The observations by this group were submitted to International Meteor Organisation (IMO), Germany for next four years.
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| | 2000, December 24-25 First Telescope Owners' Meet held at Tamhini, District Pune.
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| 2003-04 Diamond Jubilee year of Parisanstha
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| | | 2003, August 20-30 Mars closest to earth once in 60,000 years. JVP celebrated Mars week between 19 to 27 Aug. 2003. Public show of Mars through telescopes were arranged from Kesariwada, Pune though out the week. On August 22, 2003 on foundation day of JVP, Dr. Prakash Tupe gave lecture on Mars. On August 23, 2003 overnight workshop on Mars was arranged at Tamhini, District Pune.
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| 2004 JVP procured 10" Celestron Newtonian Telescope.
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| | 2009 Celebration of International Year of Astronomy: On 1 January 2009 road shows from Vartak Garden, Sambhaji bridge, S. M. Joshi bridge, Z-bridge. Venus and Moon were shown through telescopes. Hundreds of people were participated in these shows.
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| 2009, July 22 Total Solar Eclipse show. Live updates to Radio Mirchi. 10 members of JVP observed the eclipse from Tawang, Arunachal Pradesh.
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| | 2010, January 15 Annular Solar Eclipse show. Live updates at on News Channel: IBN Lokmat. 10 members of JVP observed the eclipse from Rameshwaram and Kanyakumari.
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| | 2010 January to 2011 June Articles on astronomical events in Sakal Times by Mr. Deepak Joshi & Mr. Aniruddha Deshpande.
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| | 2011, May 14 Zero Shadow Day Celebration at Tilak Smarak Mandir. Around 100 people visited the program. Since then, this program is organized as annual program of JVP
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| | 2011, December 10 Total Lunar Eclipse. Photos clicked by JVP members (Parimal Dave and Sagar Gokhale), were published on websites of astronomical magazines, Sky & Telescope and Astronomy, etc.
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| | 2011-12 JVP procured EQ 6-Pro equatorial mount for 10" Celestron Newtonian Telescope. This setup was made fully computerized along with Canon 7D DSLR camera. This setup facilitated advanced observational programs for JVP members. This facility is stationed permanantly at Kesariwada, Pune
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| | | | | 2012, June 6 Venus Transit open program: We had this century's second and the last transit of Venus on June 6, 2012. JVP in collaberation with Astroclub of Physics Department, Fergusson College had arranged a public program for observation of Venus transit on June 6, 2012 at Fergusson College ground, Pune. JVP had arranged 12 telescope for public viewing along with live projection of transit through 10" celestron telescope. Due to heavy clouds people could observe the transit only for 30 minutes through small windows in clouds. Third and fourth contact were observed by people. Nearly 800 people attended the program. 
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2012, December 10 to 20 As a next step to Basic Astronomy Course, Parisanstha has organized a course based on mathematical astronomy for the members of Parisanstha: "Elementary Positional Astronomy". Mr. V. V. Sovani, Former President of Jyotirvidya Parisanstha conducted this course at Tilak Smarak Mandir. The topics covered in this course were: Spherical trigonometry, Celestial co-ordinate system and their inter-conversions, Planetary orbital elements, Time system – equation of time, Rising, setting, meridian transits of celestial bodies, Angular distance calculations, Geometric and heliocentric coordinate transformations, Binary stars, Diffraction, parallax calculations, Occultation and eclipse calculations, Comets related calculations. 29 members participated in this course.