Dinakara
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Dinakara
Dinakara (fl. 1550) was an astronomer from India who produced a treatise named the Candrārkī (consisting of 33 verses) dealing with the preparation of Indian calendars ( pancanga) based on the movement of the sun and moon. The treatise exists in as many as 150 manuscript versions as well as with commentaries, some of which have been interpreted, translated and compared with modern approaches. Dinakara is noted as the son of Rāmeśvara and greatgrandson of Dunda from the Moḍhajñāti family and at the time of writing his treatise was residing at Bārejya (which has been assumed to be Bariya in Rewa Kantha, Gujarat). His major works were astronomical tables made for Śaka 1500 (Sunday, April 9, 1578 CE) and Śaka 1505 (AD 1583). His treatise Kheṭakasiddhi (1578) contains rules for determining the positions of the five planets based on the Brahmatulya of Bhāskara II. The Candrārkī has tables on solar and lunar movement. His third work ''Tithisāraṇī'' (or ''Dinakaras ...
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Floruit
''Floruit'' ( ; usually abbreviated fl. or occasionally flor.; from Latin for 'flourished') denotes a date or period during which a person was known to have been alive or active. In English, the unabbreviated word may also be used as a noun indicating the time when someone flourished. Etymology and use is the third-person singular perfect active indicative of the Latin verb ', ' "to bloom, flower, or flourish", from the noun ', ', "flower". Broadly, the term is employed in reference to the peak of activity for a person or movement. More specifically, it often is used in genealogy and historical writing when a person's birth or death dates are unknown, but some other evidence exists that indicates when they were alive. For example, if there are Will (law), wills Attestation clause, attested by John Jones in 1204 and 1229, as well as a record of his marriage in 1197, a record concerning him might be written as "John Jones (fl. 1197–1229)", even though Jones was born before ...
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Nakshatra
Nakshatra () is the term for Lunar mansion in Hindu astrology and Buddhist astrology. A nakshatra is one of 27 (sometimes also 28) sectors along the ecliptic. Their names are related to a prominent star or asterisms in or near the respective sectors. In essence (in Western astronomical terms), a nakshatra simply is a constellation. Every nakshatra is divided into four ''padas'' ( "steps"). The starting point for the nakshatras according to the ''Vedas'' is "Krittika" (it has been argued, because the Pleiades may have started the year at the time the ''Vedas'' were compiled, presumably at the vernal equinox), but, in more recent compilations, the start of the nakshatras list is the point on the ecliptic directly opposite the star Spica, called ''Chitrā'' in Sanskrit. This translates to Ashwinī, a part of the modern constellation of Aries. These compilations, therefore, may have been compiled during the centuries when the sun was passing through Aries at the time of the ver ...
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American Philosophical Society
The American Philosophical Society (APS) is an American scholarly organization and learned society founded in 1743 in Philadelphia that promotes knowledge in the humanities and natural sciences through research, professional meetings, publications, source text, library resources, and community outreach. It was founded by the polymath Benjamin Franklin and is considered the first learned society founded in what became the United States.Philosophical Hall, the society's headquarters and a museum, is located just east of Independence Hall in Independence National Historical Park. In 1965, in recognition of the building's history, it was designated a National Historic Landmark. The society has about 1,000 elected members. As of April 2020, 5,710 members had been inducted since its creation. Through research grants, published journals, the American Philosophical Society Museum, an extensive library, and regular meetings, the society supports a variety of disciplines in the humanitie ...
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IAST
The International Alphabet of Sanskrit Transliteration (IAST) is a transliteration scheme that allows the lossless romanisation of Brahmic family, Indic scripts as employed by Sanskrit and related Indic languages. It is based on a scheme that emerged during the 19th century from suggestions by Sir Charles Trevelyan, 1st Baronet, Charles Trevelyan, William Jones (philologist), William Jones, Monier Monier-Williams and other scholars, and formalised by the Transliteration Committee of the Geneva International Congress of Orientalists, Oriental Congress, in September 1894. IAST makes it possible for the reader to read the Indic text unambiguously, exactly as if it were in the original Indic script. It is this faithfulness to the original scripts that accounts for its continuing popularity amongst scholars. Usage Scholars commonly use IAST in publications that cite textual material in Sanskrit, Pāḷi and other classical Indian languages. IAST is also used for major e-text repos ...
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Gurjaradesa
Gurjaradesa, (, or Gurjaratra)* * is a historical region in India comprising the southern Rajasthan and northern Gujarat during the period of 6th–12th century CE. The predominant power of the region, the Gurjara-Pratiharas eventually controlled a major part of North India centered at Kannauj. The modern state of "Gujarat" derives its name from the ancient Gurjaratra. Early references to Gurjara country ''Gurjaradēśa'', or Gurjara country, is first attested in Bana's ''Harshacharita'' (7th century CE). Its king is said to have been subdued by Harsha's father Prabhakaravardhana (died c. 605 CE). The bracketing of the country with Sindha (Sindh), Lāta (southern Gujarat) and Malava (western Malwa) indicates that the region including the northern Gujarat and Rajasthan is meant. Hieun Tsang, the Chinese Buddhist pilgrim who visited India between 631–645 CE during Harsha's reign, mentioned the Gurjara country (''Kiu-che-lo'') with its capital at Bhinmal (''Pi-lo ...
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Springer Publishing
Springer Publishing Company is an American publishing company of academic journals and books, focusing on the fields of nursing, gerontology, psychology, social work, counseling, public health, and rehabilitation (neuropsychology). It was established in 1951 by Bernhard Springer, a great-grandson of Julius Springer, and is based in Midtown Manhattan, New York City. History Springer Publishing Company was founded in 1950 by Bernhard Springer, the Berlin-born great-grandson of Julius Springer, who founded Springer Science+Business Media, Springer-Verlag (now Springer Science+Business Media). Springer Publishing's first landmark publications included ''Livestock Health Encyclopedia'' by R. Seiden and the 1952 ''Handbook of Cardiology for Nurses''. The company's books soon branched into other fields, including medicine and psychology. Nursing publications grew rapidly in number, as Modell's ''Drugs in Current Use'', a small annual paperback, sold over 150,000 copies over several edi ...
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Journal For The History Of Astronomy
''Journal for the History of Astronomy'' is a quarterly peer-reviewed academic journal that covers the history of astronomy from earliest times to the present, and in history in the service of astronomy. The journal's founding editor-in-chief was Michael Hoskin (Cambridge University) and it is currently edited by James Evans ( University of Puget Sound). History The journal was established in 1970 and was published by Science History Publications through to 2013, and since 2014 by SAGE Publishing. From 1979 to 2002, ''Archaeoastronomy'' was published as a supplement, but was incorporated in 2003. Abstracting and indexing The journal is abstracted and indexed in Scopus and the Social Sciences Citation Index. According to the ''Journal Citation Reports'', the journal has a 2023 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or impor ...
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Haridatta II
Haridatta II ( 1638) was an astronomer from Mewar (present day Rajasthan) who is known for creating one of the first astronomical tables in India, known as the ''Jagadbhūṣaṇa,'' published in 1638. Haridatta, the son of Haraji, lived during the reign of Jagatsiṃha I (1628–1652) of Mewar. Little is known about him other than from his published set of tables for identifying planetary positions by following the ''Brahmapaksha'' school of astronomy Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest includ .... It has been said that the earlier genre of algorithms coded in verse for the computation of planetary positions were replaced by the table-text format with this publication. References {{reflist 17th-century Indian astronomers Rajasthani people ...
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Tithi
In Vedic timekeeping, a ''tithi'' is a "duration of two faces of moon that is observed from earth", known as ''milа̄lyа̄'' () in Nepal Bhasa, or the time it takes for the longitudinal angle between the Moon and the Sun to increase by 12 °. In other words, a tithi is a time duration between the consecutive epochs that correspond to when the longitudinal angle between the Sun and the Moon is an integer multiple of 12°. Tithis begin at varying times of day and vary in duration approximately from 19 to 26 hours. Every day of a lunar month is called tithi. Panchanga A Hindu ''muhurta'' (forty-eight minute duration) can be represented in five attributes of Hindu astronomy namely, '' vara'' the weekday, ''tithi'', ''nakshatra'' the Moon's asterism, ''yoga'' the angular relationship between Sun and Moon and ''karana'' half of tithi. ''Tithi'' plays an important role along with ''nakshatra'' in Hindus' daily as well as special activities in selecting the ''muhurta''. There ar ...
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Panchangam
A panchāngam (; ) is a Hindu calendar and almanac, which follows traditional units of Hindu timekeeping, and presents important dates and their calculations in a tabulated form. It is sometimes spelled ''Panchāngamu, Pancanga'', ''Panchanga'', ''Panchaanga'', or ''Panchānga'', and is often pronounced ''Panchāng''. Panchangas are used in Jyotisha () (Indian astrology).''Personal Panchānga and the Five Sources of Light'', by Komilla Sutton, The Wessex Astrologer, England, In Nepal and Eastern India, including Assam, Bengal and Odisha, the Panchangam is referred to as Panjika, and in the Mithila region, it is known as Maithili Panchang or Patra. Overview Panchāngams are published in India by many authors, societies, academies, and universities. Different publications differ only minutely, at least for a casual or not yet trained reader. They forecast celestial phenomena such as solar eclipses, forecasting weather (rain, dry spells) as well as more mundane occurren ...
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Bhāskara II
Bhāskara II ('; 1114–1185), also known as Bhāskarāchārya (), was an Indian people, Indian polymath, Indian mathematicians, mathematician, astronomer and engineer. From verses in his main work, Siddhānta Śiromaṇi, it can be inferred that he was born in 1114 in Vijjadavida (Vijjalavida) and living in the Satpura mountain ranges of Western Ghats, believed to be the town of Patana in Chalisgaon, located in present-day Khandesh region of Maharashtra by scholars. In a temple in Maharashtra, an inscription supposedly created by his grandson Changadeva, lists Bhaskaracharya's ancestral lineage for several generations before him as well as two generations after him. Henry Thomas Colebrooke, Henry Colebrooke who was the first European to translate (1817) Bhaskaracharya II's mathematical classics refers to the family as Maharashtrian Brahmins residing on the banks of the Godavari River, Godavari. Born in a Hindu Deshastha Brahmin family of scholars, mathematicians and astrono ...
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Shaka Era
The Shaka era (IAST: Śaka, Śāka) is a historical Hindu calendar era (year numbering), the epoch (its year zero) of which corresponds to Julian year (calendar), Julian year 78. The era has been widely used in different regions of the Indian subcontinent as well as in Southeast Asia. According to the Government of India, it is referred as the Shalivahana Era (IAST: Śālivāhana). History The origin of the Shaka era is highly controversial. There are two Shaka era systems in scholarly use, one is called ''Old Shaka Era'', whose epoch is uncertain, probably sometime in the 1st millennium BCE because ancient Buddhist and Jaina inscriptions and texts use it, but this is a subject of dispute among scholars. The other is called ''Saka Era of 78 CE'', or simply ''Saka Era'', a system that is common in epigraphic evidence from southern India. A parallel northern India system is the ''Vikrama Era'', which is used by the Vikrami calendar linked to Vikramaditya. The beginning of the S ...
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