Ayanāṃśa

Path taken by the point of vernal equinox along the ecliptic over the past 6000 years.

Ayanamsa (ayanāṃśa: from Sanskrit ayana 'movement', and aṃśa 'component'), also ayanabhāga (from Sanskrit bhāga 'portion'), is the Sanskrit term for many systems used in Hindu astrology to account for the precession of equinoxes.^[1]^{[verification needed]} There are also systems of ayanamsa used in Western sidereal astrology, such as the Fagan/Bradley Ayanamsa.^[2]

Overview[]

There are various systems of Ayanamsa that are in use in Hindu astrology (also known as Vedic astrology) such as the Raman Ayanamsa^[3] and the Krishnamurthy Ayanamsa,^[1] but the Lahiri Ayanamsa, named after its inventor, astronomer N.C. Lahiri, is by far the most prevalent system.^[2]^[4] Critics of Lahiri Ayanamsa have proposed an ayanamsa called True Chitra Paksha Ayanamsa.^[2]^[4] Dulakara Ayanamsa is the most accurate one and it can be verified with many Vedic astronomical principles;^[5] the zero ayanamsa year according to Dulakara ayanamsa was 232 CE.

The use of ayanamsa to account for the precession of equinoxes is believed to have been defined in Vedic texts at least 2,500 years before the Greek astronomer Hipparchus quantified the precession of equinoxes in 127 B.C.^{[citation needed]}

References[]

^ ^a ^b Barbara Pijan, https://barbarapijan.com/bpa/Amsha/Ayanamsha.htm
^ ^a ^b ^c "Ayanamshas in Sidereal Astrology". www.astro.com. Retrieved 5 December 2019.
^ "Saravali: Ayanamsa". www.saravali.de. Retrieved 5 December 2019.
^ ^a ^b Mihira, Varaha (4 February 2016). "Which Ayanamsa did Sri Varahamihira use?". Medium. Retrieved 31 March 2020.
^ Indrasena, B.S.H. (2020).'The Zero Ayanamsa Year', in Resolving the controversies of astrology and Vedic astronomy. pp 61-78. https://books.google.lk/books?id=fTbyDwAAQBAJ&printsec=frontcover&dq=inauthor:%22Sri+Harsha+Indrasena%22&hl=en&sa=X&redir_esc=y#v=onepage&q&f=false

External links[]

Controversial topics in astrology and Vedic astronomy

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[:0-1] Barbara Pijan, https://barbarapijan.com/bpa/Amsha/Ayanamsha.htm

[:1-2] "Ayanamshas in Sidereal Astrology". www.astro.com. Retrieved 5 December 2019.

[3] "Saravali: Ayanamsa". www.saravali.de. Retrieved 5 December 2019.

[:2-4] Mihira, Varaha (4 February 2016). "Which Ayanamsa did Sri Varahamihira use?". Medium. Retrieved 31 March 2020.

[5] Indrasena, B.S.H. (2020).'The Zero Ayanamsa Year', in Resolving the controversies of astrology and Vedic astronomy. pp 61-78. https://books.google.lk/books?id=fTbyDwAAQBAJ&printsec=frontcover&dq=inauthor:%22Sri+Harsha+Indrasena%22&hl=en&sa=X&redir_esc=y#v=onepage&q&f=false

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v t Hindu astrology
Nakshatras	Ashvinī Bharanī Kṛttikā Rohinī Mrigashīrsha Punarvasu Pushya Āshleshā Maghā Pūrva Phalgunī Uttara Phalgunī Hasta Chitrā Svātī Vishākhā Anurādhā Jyeshtha Mūla Pūrva Ashādhā Uttara Ashādhā Shravana Dhanishta Shatabhisha Pūrva Bhādrapadā Uttara Bhādrapadā Revatī
Rāśi	Meṣa Vṛṣabha Mithuna Karkaṭa Siṃha Kanyā Tulā Vṛścika Dhanus Makara Kumbha Mīna
Navagraha	Surya Chandra Mangala Budha Brihaspati Shukra Shani Rahu Ketu
Other concepts	Astrological aspects Avastha Atmakaraka Ayanamsa Bhāva Choghadiya Daśās Drekkana Dwadasama Karmasthana Lagna Maraka Muntha Navamsa Nadi astrology Panchangam Panjika Planetary dispositors Rashmi Science and Astrology Sarvatobhadra Chakra Trikonasthanas Upachayasthanas Yoga-karakas Vakri grahas
Yogas	Adhi yoga Akhanda Samrajya yoga Balarishta Chamara yoga Dainya yoga Daridra yoga Dhana yoga Kahala yoga Kemadruma yoga Nabhasa yoga Neechabhanga Raja yoga Panch Mahapurusha yoga Parajata yoga Preshya yoga Raja yoga Sanyasa yoga Viparita Raja yoga Yoga
Scriptures	Brihat Jataka Bhavartha Ratnakara Dasadhyayi Garga Hora Hora Ratna Hora Sara Jataka Parijata Jaimini Sutras Jatakalankara Jataka Parijata Jataka Bharanam Jataka Tattva Laghu Parashari Mansagari Prasna Tantra Prasna Marga Phaladeepika Sanketa Nidhi Sarvartha Chintamani Tajika Neelakanthi
Ancient Rishis/Astrologers	Bhrigu Jaimini Mantreswara Neelakantha Parasara Vaidyanatha Dikshita Varahamihira

v t Time measurement and standards
Chronometry Orders of magnitude Metrology
International standards	Coordinated Universal Time offset UT ΔT DUT1 International Earth Rotation and Reference Systems Service ISO 31-1 ISO 8601 International Atomic Time 12-hour clock 24-hour clock Barycentric Coordinate Time Barycentric Dynamical Time Civil time Daylight saving time Geocentric Coordinate Time International Date Line IERS Reference Meridian Leap second Solar time Terrestrial Time Time zone 180th meridian
Obsolete standards	Ephemeris time Greenwich Mean Time Prime meridian
Time in physics	Absolute space and time Spacetime Chronon Continuous signal Coordinate time Cosmological decade Discrete time and continuous time Proper time Theory of relativity Time dilation Gravitational time dilation Time domain Time translation symmetry T-symmetry
Horology	Clock Astrarium Atomic clock Complication History of timekeeping devices Hourglass Marine chronometer Marine sandglass Radio clock Watch stopwatch Water clock Sundial Dialing scales Equation of time History of sundials Sundial markup schema
Calendar	Gregorian Hebrew Hindu Holocene Islamic (lunar Hijri) Julian Solar Hijri Astronomical Dominical letter Epact Equinox Intercalation Julian date Leap year Lunar Lunisolar Solar Solstice Tropical year Weekday determination Weekday names
Archaeology and geology	Chronological dating Geologic time scale International Commission on Stratigraphy
Astronomical chronology	Galactic year Nuclear timescale Precession Sidereal time
Other units of time	Flick Shake Jiffy Second Minute Moment Hour Day Week Fortnight Month Year Olympiad Lustrum Decade Century Saeculum Millennium
Related topics	Chronology Duration music Mental chronometry Decimal time Metric time System time Time metrology Time value of money Timekeeper

Ayanāṃśa

Contents

Overview[]

See also[]

References[]

External links[]