{"id":"vidhyamitra:city-day:ayodhya:-3171-09-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/-3171-09-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-3171-09-17","date_display":"September 17, 3172 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":-3171,"month":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":563109.770833,"kali_year":-69,"ahargana":-25355.7292,"sun":{"sidereal_longitude":207.5245,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":346.1868,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":138.6623,"elapsed_within_tithi_degrees":6.6623},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":346.1868,"elapsed_within_degrees":12.8535},"yoga":{"number":15,"name":"Vajra","sum_longitude":193.7114},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":-3171,"month":9,"day":17,"hour":6,"minute":30,"calendar":"julian"},"julian_day":563109.770833,"ahargana":-25355.7292,"kali_year":-69,"ayanamsa_lahiri":-48.3726,"grahas":{"sun":{"sidereal_longitude":207.5245,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":346.1868,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false,"latitude":-4.4636},"mars":{"sidereal_longitude":70.4406,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":225.8812,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":64.7997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":163.7707,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":231.2234,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":83.4686,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":263.4686,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":-3171,"month":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":563109.770833,"kali_year":-69,"ahargana":-25355.7292,"sun":{"sidereal_longitude":207.5245,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":346.1868,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":138.6623,"elapsed_within_tithi_degrees":6.6623},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":346.1868,"elapsed_within_degrees":12.8535},"yoga":{"number":15,"name":"Vajra","sum_longitude":193.7114},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.464,"elongation":138.662},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.464,"opposition_distance":41.338}},"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":"05:35","sunsetLocal":"18:15","solarNoonLocal":"11:55","dayLengthHours":12.678349697801295,"dayLengthDisplay":"12 Hours 40 Mins 42 Secs","nightLengthDisplay":"11 Hours 19 Mins 18 Secs","moonriseLocal":"15:51","moonsetLocal":"02:29","rahuKala":{"name":"Rāhu Kāla","start":"11:55","end":"13:30","startHours":11.915740604077204,"endHours":13.500534316302364,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:10","end":"08:45","startHours":7.161359467401717,"endHours":8.74615317962688,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:20","end":"11:55","startHours":10.33094689185204,"endHours":11.915740604077204,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:32","end":"08:57","startHours":8.53484735133019,"endHours":8.957459007923568,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:06","end":"06:27","startHours":6.104830325918276,"endHours":6.442919651192978,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:30","end":"12:20","startHours":11.493128947483827,"endHours":12.33835226067058,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:53","end":"04:44","startHours":3.8861191288030494,"endHours":4.731342441989803,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:31","end":"05:35","startHours":4.520036613693114,"endHours":5.5765657551765555,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:52","startHours":14.028798887044086,"endHours":14.87402220023084,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:03","end":"18:27","startHours":18.054915452977852,"endHours":18.45491545297785,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:15","end":"18:47","startHours":18.25491545297785,"endHours":18.783180023719574,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:00","end":"19:45","startHours":18.00491545297785,"endHours":19.75491545297785,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:30","end":"00:20","startHours":23.49312894748383,"endHours":24.33835226067058,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:35","end":"07:10","startHours":5.5765657551765555,"endHours":7.161359467401717,"quality":"auspicious"},{"name":"Amṛta","start":"07:10","end":"08:45","startHours":7.161359467401717,"endHours":8.74615317962688,"quality":"auspicious"},{"name":"Kāla","start":"08:45","end":"10:20","startHours":8.74615317962688,"endHours":10.33094689185204,"quality":"inauspicious"},{"name":"Śubha","start":"10:20","end":"11:55","startHours":10.33094689185204,"endHours":11.915740604077204,"quality":"auspicious"},{"name":"Roga","start":"11:55","end":"13:30","startHours":11.915740604077204,"endHours":13.500534316302364,"quality":"inauspicious"},{"name":"Udveg","start":"13:30","end":"15:05","startHours":13.500534316302364,"endHours":15.085328028527528,"quality":"inauspicious"},{"name":"Chala","start":"15:05","end":"16:40","startHours":15.085328028527528,"endHours":16.670121740752688,"quality":"neutral"},{"name":"Labha","start":"16:40","end":"18:15","startHours":16.670121740752688,"endHours":18.25491545297785,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:15","end":"19:40","startHours":18.25491545297785,"endHours":19.67012174075269,"quality":"inauspicious"},{"name":"Chala","start":"19:40","end":"21:05","startHours":19.67012174075269,"endHours":21.085328028527528,"quality":"neutral"},{"name":"Labha","start":"21:05","end":"22:30","startHours":21.085328028527528,"endHours":22.500534316302364,"quality":"auspicious"},{"name":"Amṛta","start":"22:30","end":"23:55","startHours":22.500534316302364,"endHours":23.915740604077204,"quality":"auspicious"},{"name":"Kāla","start":"23:55","end":"01:20","startHours":23.915740604077204,"endHours":25.330946891852044,"quality":"inauspicious"},{"name":"Śubha","start":"01:20","end":"02:45","startHours":25.330946891852044,"endHours":26.74615317962688,"quality":"auspicious"},{"name":"Roga","start":"02:45","end":"04:10","startHours":26.74615317962688,"endHours":28.161359467401716,"quality":"inauspicious"},{"name":"Udveg","start":"04:10","end":"05:35","startHours":28.161359467401716,"endHours":29.576565755176556,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:35","end":"06:35","startHours":5.5765657551765555,"endHours":6.5765657551765555,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:35","end":"07:35","startHours":6.5765657551765555,"endHours":7.5765657551765555,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:35","end":"08:35","startHours":7.5765657551765555,"endHours":8.576565755176556,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:35","end":"09:35","startHours":8.576565755176556,"endHours":9.576565755176556,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:35","end":"10:35","startHours":9.576565755176556,"endHours":10.576565755176556,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:35","end":"11:35","startHours":10.576565755176556,"endHours":11.576565755176556,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:35","end":"12:35","startHours":11.576565755176556,"endHours":12.576565755176556,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:35","end":"13:35","startHours":12.576565755176556,"endHours":13.576565755176556,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:35","end":"14:35","startHours":13.576565755176556,"endHours":14.576565755176556,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:35","end":"15:35","startHours":14.576565755176556,"endHours":15.576565755176556,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:35","end":"16:35","startHours":15.576565755176556,"endHours":16.576565755176556,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:35","end":"17:35","startHours":16.576565755176556,"endHours":17.576565755176556,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:35","end":"18:35","startHours":17.576565755176556,"endHours":18.576565755176556,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:35","end":"19:35","startHours":18.576565755176556,"endHours":19.576565755176556,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:35","end":"20:35","startHours":19.576565755176556,"endHours":20.576565755176556,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:35","end":"21:35","startHours":20.576565755176556,"endHours":21.576565755176556,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:35","end":"22:35","startHours":21.576565755176556,"endHours":22.576565755176556,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:35","end":"23:35","startHours":22.576565755176556,"endHours":23.576565755176556,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:35","end":"00:35","startHours":23.576565755176556,"endHours":24.576565755176556,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:35","end":"01:35","startHours":24.576565755176556,"endHours":25.576565755176556,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:35","end":"02:35","startHours":25.576565755176556,"endHours":26.576565755176556,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:35","end":"03:35","startHours":26.576565755176556,"endHours":27.576565755176556,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:35","end":"04:35","startHours":27.576565755176556,"endHours":28.576565755176556,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:35","end":"05:35","startHours":28.576565755176556,"endHours":29.576565755176556,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"South-West","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.137527887648579,"eotMinutes":6.239563755367786,"ayanamsa":-48.3726}},"calendars":{"vikram_samvat":-3114,"saka_samvat":-3249,"bengali_samvat":-3764,"malayalam_era":-3995,"nanakshahi_year":-4640,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Kārtika","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Dvādaśī · Vikram -3114 undefined · Śaka -3249 undefined"},"festivals":[{"id":"tulasi-vivaha","name":"Tulasī Vivāha","name_sanskrit":"तुलसी विवाह","tradition":"Vaishnava","associated_deity":"Tulasī Devī + Bhagavān Viṣṇu","significance":"Marriage of Tulasī (Vṛndā) with Śālagrāma. Marks end of Cāturmāsya.","vrata":true,"detection":{"tithi_number":12,"tithi_paksha":"Śukla","lunar_month":"Kārtika"},"precedence":2,"sources":["Padma Purāṇa Uttara-khaṇḍa"]}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Dedicated festival walk for Tulasī Vivāha is not live yet; Budhavāra (Wednesday) — 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 September 17, 3172 BCE · Ayodhyā · Vidhyamitra","description":"September 17, 3172 BCE for Ayodhyā: Śukla Dvādaśī, sūryodaya 05:35, sūryāsta 18:15.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/-3171-09-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/-3171-09-17","sa":"https://sa.vidhyamitra.com/city/ayodhya/-3171-09-17","hi":"https://hi.vidhyamitra.com/city/ayodhya/-3171-09-17","x-default":"https://vidhyamitra.com/city/ayodhya/-3171-09-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-07T10:11:50.515Z","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":"2026-09-07T10:11:50.515Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-07T10:11:50.515Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}