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Makara Sankaranti
Makar(a) Sankranti (), also referred to as Uttarayana, Maghi, or simply Sankranti, is a Hindu observance and a festival. Usually falling on the date of January 14 annually, this occasion marks the transition of the Sun from the zodiac of Sagittarius (''dhanu'') to Capricorn (''makara''). Since the Sun is regarded to have moved from the southern hemisphere to the northern hemisphere on this day in the Hindu calendar, the festival is dedicated to the solar deity, Surya, and is observed to mark a new beginning. Many native multi-day festivals are organised on this occasion all over India. The festivities associated with Makar Sankranti are known by various names '' Magh Bihu'' in Assam, '' Maghi'' in Punjab, ''Maghi Saaji'' in Himachal Pradesh, ''Maghi Sangrand'' or ''Uttarain'' (Uttarayana) in Jammu, ''Sakrat'' in Haryana, Sakraat in Rajasthan, ''Sukarat'' in central India, ''Pongal'' in Tamil Nadu, ''Uttarayana'' in Gujarat, and Uttar Pradesh, ''Ghughuti'' in Uttarakhand, '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Basis Of The Hindu Calendar
The Hindu calendar is based on a geocentric model of the solar system.Burgess 1935, p. 285 (XII. 32) A geocentric model describes the solar system as seen by an observer on the surface of the earth. The Hindu calendar defines nine measures of time ():Burgess 1935, p. 310 (XIV. 1) # brāhma māna # divya māna # pitraya māna # prājāpatya māna # guror māna # saura māna # sāvana māna # cāndra māna # nākṣatra māna Of these, only the last four are in active use and are explained here. Cāndra māna The ''cāndra māna'' () of the Hindu calendar is defined based on the movement of the moon around the earth. The new moon () and full moon () are important markers in this calendar. The ''cāndra māna'' of the Hindu calendar defines the following synodic calendar elements: Pakṣa A ''pakṣa'' () is the time taken by the moon to move from a new moon to a full moon and vice versa. The waxing phase of the moon is known as the bright side () and the waning pha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diana L
Diana most commonly refers to: * Diana (name), a given name (including a list of people with the name) * Diana (mythology), ancient Roman goddess of the hunt and wild animals; later associated with the Moon * Diana, Princess of Wales (1961–1997), formerly Lady Diana Spencer, was an activist, philanthropist, and member of the British royal family Places and jurisdictions Africa * Diana (see), a town and commune in Souk Ahras Province in north-eastern Algeria * Diana's Peak, the highest point on the island of Saint Helena * Diana Region, a region in Madagascar * Diana Veteranorum, an ancient city, former bishopric and present Latin Catholic titular see in Algeria Americas * Diana, New York, a town in Lewis County, New York, United States * Diana, Saskatchewan, a ghost town in Canada Asia * Diana, Iraq, a town in Iraqi Kurdistan Europe * Diana (Rozvadov), an almost abandoned settlement in the Czech Republic * Diana, Silesian Voivodeship, a village in south Poland * Diana F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gayatri Mantra
The Gāyatrī Mantra, also known as the Sāvitri Mantra, is a highly revered mantra from the '' Rig Veda'' (Mandala 3.62.10), dedicated to the Vedic deity Savitr. is the name of the Goddess of the Vedic meter in which the verse is composed. Its recitation is traditionally preceded by ' and the formula ', known as the ', or "great (mystical) utterance". The Gayatri mantra is cited widely in Hindu texts, such as the mantra listings of the Śrauta liturgy, and classical Hindu texts such as the ''Bhagavad Gita'', ''Harivamsa'', and ''Manusmṛti''. The mantra and its associated metric form was known by the Buddha. The mantra is an important part of the upanayana ceremony. Modern Hindu reform movements spread the practice of the mantra to everyone and its use is now very widespread. Text The main mantra appears in the hymn RV 3.62.10. During its recitation, the hymn is preceded by ' () and the formula ' (). This prefixing of the mantra is properly described in the Taittiriya Arany ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axial Precession
In astronomy, axial precession is a gravity-induced, slow, and continuous change in the orientation of an astronomical body's rotational axis. In the absence of precession, the astronomical body's orbit would show axial parallelism. In particular, axial precession can refer to the gradual shift in the orientation of Earth's axis of rotation in a cycle of approximately 26,000 years.Hohenkerk, C.Y., Yallop, B.D., Smith, C.A., & Sinclair, A.T. "Celestial Reference Systems" in Seidelmann, P.K. (ed.) ''Explanatory Supplement to the Astronomical Almanac''. Sausalito: University Science Books. p. 99. This is similar to the precession of a spinning top, with the axis tracing out a pair of cones joined at their apices. The term "precession" typically refers only to this largest part of the motion; other changes in the alignment of Earth's axis—nutation and polar motion—are much smaller in magnitude. Earth's precession was historically called the precession of the equinoxes, because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Year
A tropical year or solar year (or tropical period) is the time that the Sun takes to return to the same position in the sky of a celestial body of the Solar System such as the Earth, completing a full cycle of seasons; for example, the time from vernal equinox to vernal equinox, or from summer solstice to summer solstice. It is the type of year used by tropical solar calendars. The solar year is one type of astronomical year and particular orbital period. Another type is the sidereal year (or sidereal orbital period), which is the time it takes Earth to complete one full orbit around the Sun as measured with respect to the fixed stars, resulting in a duration of 20 minutes longer than the tropical year, because of the precession of the equinoxes. Since antiquity, astronomers have progressively refined the definition of the tropical year. The entry for "year, tropical" in the '' Astronomical Almanac Online Glossary'' states: An equivalent, more descriptive, definition is "The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winter Solstice
The winter solstice, also called the hibernal solstice, occurs when either of Earth's poles reaches its maximum tilt away from the Sun. This happens twice yearly, once in each hemisphere ( Northern and Southern). For that hemisphere, the winter solstice is the day with the shortest period of daylight and longest night of the year, when the Sun is at its lowest daily maximum elevation in the sky. Either pole experiences continuous darkness or twilight around its winter solstice. The opposite event is the summer solstice. The winter solstice occurs during the hemisphere's winter. In the Northern Hemisphere, this is the December solstice (usually 21st or 22nd December) and in the Southern Hemisphere, this is the June solstice (usually 20th or 21st of June). Although the winter solstice itself lasts only a moment, the term also refers to the day on which it occurs. The term midwinter is also used synonymously with the winter solstice, although it carries other meanings as we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uttarayan
The term Uttarāyaṇa (commonly Uttarayan) is derived from two different Sanskrit words – "uttara" (North) and "ayana" (movement) – thus indicating a semantic of the northward movement of the Sun on the celestial sphere. This movement begins to occur a day after the winter solstice in December, which occurs around 22 December and continues for a six-month period through to the summer solstice around June 21 (dates vary). This difference is because the solstices continually precess at a rate of 50 arcseconds per year due to the precession of the equinoxes, i.e. this difference is the difference between the sidereal and tropical zodiacs. The Surya Siddhanta bridges this difference by juxtaposing the four solstitial and equinoctial points with four of the twelve boundaries of the rashis. The complement of Uttarayana is Dakshinayana, i.e. the period between Karka sankranti and Makara Sankranti as per the sidereal zodiac and between the Summer solstice and Winter solstice as pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidereal Year
A sidereal year (, ; ), also called a sidereal orbital period, is the time that Earth or another planetary body takes to orbit the Sun once with respect to the fixed stars. Hence, for Earth, it is also the time taken for the Sun to return to the same position relative to Earth with respect to the fixed stars after apparently travelling once around the ecliptic. It equals for the J2000.0 epoch. The sidereal year differs from the solar year, "the period of time required for the ecliptic longitude of the Sun to increase 360 degrees", due to the precession of the equinoxes. The sidereal year is 20 min 24.5 s longer than the mean tropical year at J2000.0 . At present, the rate of axial precession corresponds to a period of 25,772 years, so sidereal year is longer than tropical year by 1,224.5 seconds (20 min 24.5 s, ~365.24219*86400/25772). Before the discovery of the precession of the equinoxes by Hipparchus in the Hellenistic period, the difference between sidereal and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spica
Spica is the brightest object in the constellation of Virgo and one of the 20 brightest stars in the night sky. It has the Bayer designation α Virginis, which is Latinised to Alpha Virginis and abbreviated Alpha Vir or α Vir. Analysis of its parallax shows that it is located 250 light-years from the Sun. It is a spectroscopic binary star and rotating ellipsoidal variable; a system whose two stars are so close together they are egg-shaped rather than spherical, and can only be separated by their spectra. The primary is a blue giant and a variable star of the Beta Cephei type. Spica, along with Arcturus and Denebola—or Regulus, depending on the source—forms the Spring Triangle asterism, and, by extension, is also part of the Great Diamond together with the star Cor Caroli. Nomenclature In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) to catalog and standardize proper names for stars. The WGSN's first bulletin of July ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hindu Astrology
Jyotisha or Jyotishya (from Sanskrit ', from ' “light, heavenly body" and ''ish'' - from Isvara or God) is the traditional Hindu system of astrology, also known as Hindu astrology, Indian astrology and more recently Vedic astrology. It is one of the six auxiliary disciplines in Hinduism, that is connected with the study of the Vedas. The ''Vedanga Jyotisha'' is one of the earliest texts about astronomy within the Vedas. Some scholars believe that the horoscopic astrology practiced in the Indian subcontinent came from Hellenistic influences, however, this is a point of intense debate and other scholars believe that Jyotisha developed independently although it may have interacted with Greek astrology. Following a judgement of the Andhra Pradesh High Court in 2001 which favoured astrology, some Indian universities now offer advanced degrees in Hindu astrology. The scientific consensus is that astrology is a pseudoscience. Etymology Jyotisha, states Monier-Williams, is rooted in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecliptic Coordinate System
The ecliptic coordinate system is a celestial coordinate system commonly used for representing the apparent positions, orbits, and pole orientations of Solar System objects. Because most planets (except Mercury) and many small Solar System bodies have orbits with only slight inclinations to the ecliptic, using it as the fundamental plane is convenient. The system's origin can be the center of either the Sun or Earth, its primary direction is towards the vernal (March) equinox, and it has a right-hand convention. It may be implemented in spherical or rectangular coordinates. Primary direction The celestial equator and the ecliptic are slowly moving due to perturbing forces on the Earth, therefore the orientation of the primary direction, their intersection at the Northern Hemisphere vernal equinox, is not quite fixed. A slow motion of Earth's axis, precession, causes a slow, continuous turning of the coordinate system westward about the poles of the ecliptic, completi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidereal And Tropical Astrology
'' Sidereal'' and ''tropical'' are terms used to describe two different definitions of a year, applied in sidereal solar calendars or tropical solar calendars. In astrology, they refer to two different systems of ecliptic coordinates used to divide the ecliptic into twelve "signs". Each sign is divided into 30 degrees, making a total of 360 degrees. While sidereal systems of astrology define the signs relative to the apparent backwards movement of fixed stars of about 1 degree every 72 years from the perspective of the Earth, tropical systems define 0 degrees of Aries to coincide with the vernal point or vernal equinox (also known as the March equinox in the Northern hemisphere), and define the rest of the zodiac from this point. Sidereal astrology maintains the alignment between signs and constellations via corrective systems known as ayanamsas (Sanskrit: '''ayana''' "movement" + '''aṃśa "component"), to allow for the observed precession of equinoxes, whereas tropical astr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
