|
Atri's Eclipse
Atri's Eclipse is a total solar eclipse mentioned in the Indian text Rigaveda. It has been claimed by some modern astronomical scholars to be the earliest reference of the solar eclipse mentioned in any historical astronomy of the world. The claim for the earliest reference of the total solar eclipse was published in a paper by the Journal of Astronomical History and Heritage. Etymology The text Rigaveda doesn't directly mention the word Atri's Eclipse but it has been termed by the modern scholars to identify the total solar eclipse mentioned in the text Rigaveda by the sage Atri in the form of poetic hymns. Indian scholar Bal Gangadhar Tilak in his commentary on Vedic literature mentioned Atri's Eclipse to identify the total solar eclipse in the Rigaveda mentioned by the Vedic sage Atri. Similarly ''Robert Garfinkle'' in his book ''Luna Cognita'' also discussed about the Atri's Eclipse. Background In the text Rigaveda, there is a story of the sage Atri who demolished an a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Eclipse
A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially. Such an alignment occurs approximately every six months, during the eclipse season in its new moon phase, when the Moon's orbital plane is closest to Ecliptic, the plane of Earth's orbit. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In #Types, partial and annular eclipses, only part of the Sun is obscured. Unlike a lunar eclipse, which may be viewed from anywhere on the night side of Earth, a solar eclipse can only be viewed from a relatively small area of the world. As such, although total solar eclipses occur somewhere on Earth every 18 months on average, they recur at any given place only once every 360 to 410 years. If the Moon were in a perfectly circular orbit and in the same orbital plane as Earth, there would be total solar eclipses once a month, at every new moon. Instead, because the Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tata Institute Of Fundamental Research
Tata Institute of Fundamental Research (TIFR) is a leading research Institute under the Department of Atomic Energy of the Government of India. It is a public deemed university located at Navy Nagar, Colaba in Mumbai. It also has a centres in Bangalore, Pune and Hyderabad. TIFR conducts research primarily in the natural sciences, the biological sciences and theoretical computer science. History Homi J. Bhabha, known for his role in the development of the Indian atomic energy programme, wrote to the Sir Dorabji Tata Trust requesting financial assistance to set up a scientific research institute. With support from J.R.D. Tata, then chairman of the Tata Group, TIFR was founded on 1 June 1945, and Homi Bhabha was appointed its first director. The institute initially operated within the campus of the Indian Institute of Science, Bangalore before relocating to Mumbai later that year. TIFR's new campus in Colaba was designed by Chicago-based architect Helmuth Bartsch and was inaugu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ketu (mythology)
Ketu (Sanskrit: केतु, IAST: ) () is the descending (i.e. 'south') lunar node in Vedic, or Hindu astrology. Personified as a deity, Rahu ( 16px, ☊, the ascending (i.e. 'north') lunar node) and Ketu are considered to be the two halves of the immortal asura (demon) Svarbhanu, who was beheaded by the god Vishnu. As per Vedic astrology, Rahu and Ketu have an orbital cycle of 18 years and are always 180 degrees from each other orbitally (as well as in the birth charts). This coincides with the precessional orbit of moon or the ~18-year rotational cycle of the lunar ascending and descending nodes on the earth's ecliptic plane. Ketu rules the Scorpio zodiac sign together with Mangala (traditional ruling planet; Mars in Western astrology). Astronomically, Rahu and Ketu denote the points of intersection of the paths of Surya (the Sun) and Chandra (the Moon) as they move on the celestial sphere, and do not correspond to a physical planet. Rahu and Ketu are respective ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rahu
Rāhu (Sanskrit: राहु, 16px, ☊) is one of the nine major celestial bodies ( navagraha) in Hindu texts and the king of meteors. It represents the ascension of the Moon in its precessional orbit around the Earth, also referred to as the north lunar node, and along with Ketu, is a "shadow planet" that causes eclipses. Despite having no physical existence, Rahu has been allocated the status of the planet by ancient seers owing to its strong influence in astrology. Rahu is usually paired with Ketu, the south lunar node. The time of day considered to be under the influence of Rahu is called '' Rāhu kāla'' and is considered inauspicious. As per Hindu astrology, Rahu and Ketu have an orbital cycle of 18 years and are always 180 degrees from each other orbitally (as well as in the birth charts). This coincides with the precessional orbit of the Moon or the ~18 year rotational cycle of the lunar ascending and descending nodes on the Earth's ecliptic plane. This also co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
September Equinox
The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward. Because of differences between the calendar year and the tropical year, the September equinox may occur from September 21 to 24. At the equinox, the Sun as viewed from the equator rises due east and sets due west. Before the Southward equinox, the Sun rises and sets more northerly, and afterwards, it rises and sets more southerly. The equinox may be taken to mark the end of astronomical summer and the beginning of astronomical autumn (autumnal equinox) in the Northern Hemisphere, while marking the end of astronomical winter and the start of astronomical spring (vernal equinox) in the Southern Hemisphere. Occurrences The September equinox is one point in time commonly used to determine the length of the tropical year. The dates and times of the September equinoxes that occur from the year 2018 to 2028 (UTC) are listed as follows: Const ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orion (constellation)
Orion is a prominent set of stars visible during winter in the northern celestial hemisphere. It is one of the IAU designated constellations, 88 modern constellations; it was among :Constellations listed by Ptolemy, the 48 constellations listed by the 2nd-century astronomer Ptolemy. It is named after Orion (mythology), a hunter in Greek mythology. Orion is most prominent during winter evenings in the Northern Hemisphere, as are five other constellations that have stars in the Winter Hexagon asterism (astronomy), asterism. Orion's two brightest stars, Rigel (β) and Betelgeuse (α), are both among the List of brightest stars, brightest stars in the night sky; both are supergiants and slightly variable star, variable. There are a further six stars brighter than magnitude 3.0, including three making the short straight line of the Orion's Belt asterism (astronomy), asterism. Orion also hosts the radiant (meteor shower), radiant of the annual Orionids, the strongest meteor shower as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
March Equinox
The March equinox or northward equinox is the equinox on the Earth when the subsolar point appears to leave the Southern Hemisphere and cross the celestial equator, heading northward as seen from Earth. The March equinox is known as the vernal equinox (or spring equinox) in the Northern Hemisphere and as the autumnal equinox (or fall equinox) in the Southern Hemisphere. On the Gregorian calendar at 0° longitude, the northward equinox can occur as early as 19 March (which happened most recently in 1796, and will happen next in 2044), and it can occur as late as 21 March (which happened most recently in 2007, and will happen next in 2102). For a common year the computed time slippage is about 5 hours 49 minutes ''later'' than the previous year, and for a leap year about 18 hours 11 minutes ''earlier'' than the previous year. Balancing the increases of the common years against the losses of the leap years keeps the calendar date of the March equinox from drifting more than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Astronomical Observatory Of Japan
The (NAOJ) is an astronomy, astronomical research organisation comprising several facilities in Japan, as well as an observatory in Hawaii and Chile. It was established in 1988 as an amalgamation of three existing research organizations - the Tokyo Astronomical Observatory of the University of Tokyo, International Latitude Observatory of Mizusawa, and a part of Research Institute of Atmospherics of Nagoya University. In the 2004 reform of national research organizations, NAOJ became a division of the National Institutes of Natural Sciences, Japan, National Institutes of Natural Sciences. Facilities ;Mitaka Campus (Mitaka, Tokyo. ) :The Headquarters, Astronomy Data Center, Advanced Technology Center, Public Relations Center :Solar Flare Telescope, Sunspot Telescope, TAMA 300 gravitational wave detector :Tokyo Photoelectric Meridian Circle :Historical instruments: Solar Tower Telescope, 65cm refractor dome, 20cm refractor dome ;Nobeyama Radio Observatory (Minamimaki, Nagano. ) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleiades
The Pleiades (), also known as Seven Sisters and Messier 45 (M45), is an Asterism (astronomy), asterism of an open cluster, open star cluster containing young Stellar classification#Class B, B-type stars in the northwest of the constellation Taurus (constellation), Taurus. At a distance of about 444 light-years, it is among the nearest star clusters to Earth and the nearest Messier object to Earth, being the most obvious star cluster to the naked eye in the night sky. It is also observed to house the reflection nebula NGC 1432, an HII region. Around 2330 BC it marked the vernal point. Due to the brightness of its stars, the Pleiades is viewable from most areas on Earth, even in locations with significant light pollution. The cluster is dominated by OB star, hot blue luminous stars that have formed within the last 100 million years. Reflection nebulae around the brightest stars were once thought to be leftover material from their formation, but are now considered likely to be an u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rigveda
The ''Rigveda'' or ''Rig Veda'' (, , from wikt:ऋच्, ऋच्, "praise" and wikt:वेद, वेद, "knowledge") is an ancient Indian Miscellany, collection of Vedic Sanskrit hymns (''sūktas''). It is one of the four sacred canonical Hindu texts (''śruti'') known as the Vedas. Only one Shakha of the many survive today, namely the Shakala Shakha, Śakalya Shakha. Much of the contents contained in the remaining Shakhas are now lost or are not available in the public forum. The ''Rigveda'' is the oldest known Vedic Sanskrit text. Its early layers are among the oldest extant texts in any Indo-European language. Most scholars believe that the sounds and texts of the ''Rigveda'' have been orally transmitted with precision since the 2nd millennium BCE, through Indian mathematics#Styles of memorisation, methods of memorisation of exceptional complexity, rigour and fidelity, though the dates are not confirmed and remain contentious till concrete evidence surfaces. Philolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sankhyayana Brahmana
Sankhyayana Brahmana (Sanskrit: शाङ्खायनब्राह्मणम्) ( Romanised: Śāṅkhyāyana Brāhmaṇa) is an ancient ''Brahmana'' text of Rigveda. It is also called the ''Kaushitaki Brahmana''. The text is associated with ''Baskala Shakha'' of Rigaveda. The text is attributed to the Vedic sage ''Kaushitaki'' and his disciple ''Sankhyayana''. Description Sankhyayana Brahmana is the second available and preserved Brahmana text of the Rigaveda. The text is divided into 30 chapters and 226 ''Khandas''. It is said that Kaushitaki was the teacher of Sankhyayana. He imparted the knowledge of the text to his disciple Sankhyayana. Then Sankhyayana nominated the name of the text as Kaushitaki Brahmana after his teacher name. But later the text was called as Sankhyayana Brahmana. The text is also mentioned in the commentary of Brahman Sutra by Shankracharya. Similarly the Vedic sage and Sanskrit grammarian Panini in his text Astadhyayai mentioned about the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Svarbhānu
Svarbhānu () is an asura traditionally held responsible for solar eclipses and lunar eclipses in Vedic mythology. The name is also used as an attribute of the asuras Rahu and Ketu in Puranic mythology, who are also connected to the solar eclipse and the lunar eclipse. Legend Svarbhānu is described as an asura twice in the Family Books of the ''Rigveda''. Svarbhānu is described to strike Surya, overshadowing the sun with darkness. Stella Kramrisch considers this act as portraying Svarbhānu as a deity greater than the Sun. The Rigveda further narrates after this, the king of heaven - Indra struck down Svarbhānu and sage Atri found the hidden Sun and replaced it in the sky. Svarbhanu again appears in the ''Yajurveda'' and the ''Brahmanas''. According to the ''Brahmana''s, Svarbhānu with darkness pierced Āditya (the Sun), whom, however, the gods set free by means of ''svara'' (accents). An assistant of Shukra (Venus), Svarbhānu was also the teacher of the asuras. He d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
