{"id":"vidhyamitra:city-day:ayodhya:-3170-02-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/-3170-02-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-3170-02-12","date_display":"February 12, 3171 BCE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":-3170,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":563257.770833,"kali_year":-69,"ahargana":-25207.7292,"sun":{"sidereal_longitude":357.5253,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":134.8791,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.3538,"elapsed_within_tithi_degrees":5.3538},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":134.8791,"elapsed_within_degrees":1.5458},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":132.4045},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":-3170,"month":2,"day":12,"hour":6,"minute":30,"calendar":"julian"},"julian_day":563257.770833,"ahargana":-25207.7292,"kali_year":-69,"ayanamsa_lahiri":-48.3669,"grahas":{"sun":{"sidereal_longitude":357.5253,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":134.8791,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":3.8664},"mars":{"sidereal_longitude":78.029,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":358.0969,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":60.3947,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":330.9031,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":242.8067,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":75.6268,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":255.6268,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":-3170,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":563257.770833,"kali_year":-69,"ahargana":-25207.7292,"sun":{"sidereal_longitude":357.5253,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":134.8791,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.3538,"elapsed_within_tithi_degrees":5.3538},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":134.8791,"elapsed_within_degrees":1.5458},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":132.4045},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.866,"elongation":137.354},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.866,"opposition_distance":42.646}},"eclipse_window_40days":[]},"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:50","sunsetLocal":"17:42","solarNoonLocal":"12:16","dayLengthHours":10.87570514503513,"dayLengthDisplay":"10 Hours 52 Mins 33 Secs","nightLengthDisplay":"13 Hours 07 Mins 27 Secs","moonriseLocal":"14:32","moonsetLocal":"04:19","rahuKala":{"name":"Rāhu Kāla","start":"13:37","end":"14:59","startHours":13.622442011377565,"endHours":14.981905154506958,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:50","end":"08:11","startHours":6.825126295730609,"endHours":8.18458943886,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:33","end":"10:54","startHours":9.54405258198939,"endHours":10.903515725118783,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:22","end":"09:44","startHours":9.36279082957214,"endHours":9.725314334406644,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:17","end":"07:34","startHours":7.27828067677374,"endHours":7.568299480641343,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:38","startHours":11.90045536341367,"endHours":12.625502373082679,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:23","end":"06:06","startHours":5.3750322763925915,"endHours":6.1000792860616,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:55","end":"06:50","startHours":5.918817533644348,"endHours":6.825126295730609,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:48","startHours":14.075596392420696,"endHours":14.800643402089705,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:30","end":"17:54","startHours":17.50083144076574,"endHours":17.90083144076574,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:42","end":"18:09","startHours":17.70083144076574,"endHours":18.15398582180887,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:27","end":"19:12","startHours":17.45083144076574,"endHours":19.20083144076574,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:38","startHours":23.90045536341367,"endHours":24.625502373082682,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:50","end":"08:11","startHours":6.825126295730609,"endHours":8.18458943886,"quality":"auspicious"},{"name":"Roga","start":"08:11","end":"09:33","startHours":8.18458943886,"endHours":9.54405258198939,"quality":"inauspicious"},{"name":"Udveg","start":"09:33","end":"10:54","startHours":9.54405258198939,"endHours":10.903515725118783,"quality":"inauspicious"},{"name":"Chala","start":"10:54","end":"12:16","startHours":10.903515725118783,"endHours":12.262978868248174,"quality":"neutral"},{"name":"Labha","start":"12:16","end":"13:37","startHours":12.262978868248174,"endHours":13.622442011377565,"quality":"auspicious"},{"name":"Amṛta","start":"13:37","end":"14:59","startHours":13.622442011377565,"endHours":14.981905154506958,"quality":"auspicious"},{"name":"Kāla","start":"14:59","end":"16:20","startHours":14.981905154506958,"endHours":16.34136829763635,"quality":"inauspicious"},{"name":"Śubha","start":"16:20","end":"17:42","startHours":16.34136829763635,"endHours":17.70083144076574,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:42","end":"19:20","startHours":17.70083144076574,"endHours":19.341368297636347,"quality":"auspicious"},{"name":"Kāla","start":"19:20","end":"20:59","startHours":19.341368297636347,"endHours":20.981905154506958,"quality":"inauspicious"},{"name":"Śubha","start":"20:59","end":"22:37","startHours":20.981905154506958,"endHours":22.622442011377565,"quality":"auspicious"},{"name":"Roga","start":"22:37","end":"00:16","startHours":22.622442011377565,"endHours":24.262978868248176,"quality":"inauspicious"},{"name":"Udveg","start":"00:16","end":"01:54","startHours":24.262978868248176,"endHours":25.903515725118783,"quality":"inauspicious"},{"name":"Chala","start":"01:54","end":"03:33","startHours":25.903515725118783,"endHours":27.54405258198939,"quality":"neutral"},{"name":"Labha","start":"03:33","end":"05:11","startHours":27.54405258198939,"endHours":29.18458943886,"quality":"auspicious"},{"name":"Amṛta","start":"05:11","end":"06:50","startHours":29.18458943886,"endHours":30.82512629573061,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:50","end":"07:50","startHours":6.825126295730609,"endHours":7.825126295730609,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:50","end":"08:50","startHours":7.825126295730609,"endHours":8.825126295730609,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:50","end":"09:50","startHours":8.825126295730609,"endHours":9.825126295730609,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:50","end":"10:50","startHours":9.825126295730609,"endHours":10.825126295730609,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:50","end":"11:50","startHours":10.825126295730609,"endHours":11.825126295730609,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:50","end":"12:50","startHours":11.825126295730609,"endHours":12.825126295730609,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:50","end":"13:50","startHours":12.825126295730609,"endHours":13.825126295730609,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:50","end":"14:50","startHours":13.825126295730609,"endHours":14.825126295730609,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:50","end":"15:50","startHours":14.825126295730609,"endHours":15.825126295730609,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:50","end":"16:50","startHours":15.825126295730609,"endHours":16.82512629573061,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:50","end":"17:50","startHours":16.82512629573061,"endHours":17.82512629573061,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:50","end":"18:50","startHours":17.82512629573061,"endHours":18.82512629573061,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:50","end":"19:50","startHours":18.82512629573061,"endHours":19.82512629573061,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:50","end":"20:50","startHours":19.82512629573061,"endHours":20.82512629573061,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:50","end":"21:50","startHours":20.82512629573061,"endHours":21.82512629573061,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:50","end":"22:50","startHours":21.82512629573061,"endHours":22.82512629573061,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:50","end":"23:50","startHours":22.82512629573061,"endHours":23.82512629573061,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:50","end":"00:50","startHours":23.82512629573061,"endHours":24.82512629573061,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:50","end":"01:50","startHours":24.82512629573061,"endHours":25.82512629573061,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:50","end":"02:50","startHours":25.82512629573061,"endHours":26.82512629573061,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:50","end":"03:50","startHours":26.82512629573061,"endHours":27.82512629573061,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:50","end":"04:50","startHours":27.82512629573061,"endHours":28.82512629573061,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:50","end":"05:50","startHours":28.82512629573061,"endHours":29.82512629573061,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:50","end":"06:50","startHours":29.82512629573061,"endHours":30.82512629573061,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.963014948431717,"eotMinutes":-14.594732094890398,"ayanamsa":-48.3669}},"calendars":{"vikram_samvat":-3113,"saka_samvat":-3248,"bengali_samvat":-3763,"malayalam_era":-3994,"nanakshahi_year":-4639,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Dvādaśī · Vikram -3113 undefined · Śaka -3248 undefined"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":true,"location_specific":"ayodhya"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 12, 3171 BCE · Ayodhyā · Vidhyamitra","description":"February 12, 3171 BCE for Ayodhyā: Śukla Dvādaśī, sūryodaya 06:50, sūryāsta 17:42.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/-3170-02-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/-3170-02-12","sa":"https://sa.vidhyamitra.com/city/ayodhya/-3170-02-12","hi":"https://hi.vidhyamitra.com/city/ayodhya/-3170-02-12","x-default":"https://vidhyamitra.com/city/ayodhya/-3170-02-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T09:43:27.232Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-31T09:43:27.232Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T09:43:27.232Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}