{"id":"vidhyamitra:city-day:ayodhya:2021-09-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2021-09-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-09-12","date_display":"September 12, 2021 CE","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":2021,"month":9,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459469.770833,"kali_year":5123,"ahargana":1871004.2708,"sun":{"sidereal_longitude":144.5851,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":209.0983,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":64.5131,"elapsed_within_tithi_degrees":4.5131},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":209.0983,"elapsed_within_degrees":9.0983},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":353.6834},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2021,"month":9,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459469.770833,"ahargana":1871004.2708,"kali_year":5123,"ayanamsa_lahiri":24.1561,"grahas":{"sun":{"sidereal_longitude":145.35812599999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":211.38572599999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false,"latitude":1.2461},"mars":{"sidereal_longitude":153.59542599999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":171.68212600000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":300.21102599999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":186.92632600000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":283.43422599999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":45.1898,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":225.1898,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":"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":2021,"month":9,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459469.770833,"kali_year":5123,"ahargana":1871004.2708,"sun":{"sidereal_longitude":144.5851,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":209.0983,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":64.5131,"elapsed_within_tithi_degrees":4.5131},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":209.0983,"elapsed_within_degrees":9.0983},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":353.6834},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.246,"elongation":64.513},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.246,"opposition_distance":115.487}},"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":"05:45","sunsetLocal":"18:09","solarNoonLocal":"11:57","dayLengthHours":12.404992740817619,"dayLengthDisplay":"12 Hours 24 Mins 18 Secs","nightLengthDisplay":"11 Hours 35 Mins 42 Secs","moonriseLocal":"10:59","moonsetLocal":"21:43","rahuKala":{"name":"Rāhu Kāla","start":"16:36","end":"18:09","startHours":16.598547018673518,"endHours":18.14917111127572,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:57","end":"13:30","startHours":11.94667474086691,"endHours":13.497298833469113,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:03","end":"16:36","startHours":15.047922926071315,"endHours":16.598547018673518,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.63867667664888,"endHours":9.052176434676134,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:36","startHours":6.26105306799217,"endHours":6.591852874413973,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:22","startHours":11.533174982839657,"endHours":12.360174498894164,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:55","startHours":4.0901793383490865,"endHours":4.917178854403594,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:45","startHours":4.710428975389967,"endHours":5.744178370458102,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:50","startHours":14.01417353100318,"endHours":14.841173047057689,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.94917111127572,"endHours":18.34917111127572,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:40","startHours":18.14917111127572,"endHours":18.666045808809788,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.89917111127572,"endHours":19.64917111127572,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:22","startHours":23.533174982839657,"endHours":24.360174498894164,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:45","end":"07:18","startHours":5.744178370458102,"endHours":7.2948024630603046,"quality":"inauspicious"},{"name":"Chala","start":"07:18","end":"08:51","startHours":7.2948024630603046,"endHours":8.845426555662506,"quality":"neutral"},{"name":"Labha","start":"08:51","end":"10:24","startHours":8.845426555662506,"endHours":10.396050648264708,"quality":"auspicious"},{"name":"Amṛta","start":"10:24","end":"11:57","startHours":10.396050648264708,"endHours":11.94667474086691,"quality":"auspicious"},{"name":"Kāla","start":"11:57","end":"13:30","startHours":11.94667474086691,"endHours":13.497298833469113,"quality":"inauspicious"},{"name":"Śubha","start":"13:30","end":"15:03","startHours":13.497298833469113,"endHours":15.047922926071315,"quality":"auspicious"},{"name":"Roga","start":"15:03","end":"16:36","startHours":15.047922926071315,"endHours":16.598547018673518,"quality":"inauspicious"},{"name":"Udveg","start":"16:36","end":"18:09","startHours":16.598547018673518,"endHours":18.14917111127572,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:09","end":"19:36","startHours":18.14917111127572,"endHours":19.598547018673518,"quality":"auspicious"},{"name":"Roga","start":"19:36","end":"21:03","startHours":19.598547018673518,"endHours":21.047922926071315,"quality":"inauspicious"},{"name":"Udveg","start":"21:03","end":"22:30","startHours":21.047922926071315,"endHours":22.497298833469113,"quality":"inauspicious"},{"name":"Chala","start":"22:30","end":"23:57","startHours":22.497298833469113,"endHours":23.94667474086691,"quality":"neutral"},{"name":"Labha","start":"23:57","end":"01:24","startHours":23.94667474086691,"endHours":25.39605064826471,"quality":"auspicious"},{"name":"Amṛta","start":"01:24","end":"02:51","startHours":25.39605064826471,"endHours":26.845426555662506,"quality":"auspicious"},{"name":"Kāla","start":"02:51","end":"04:18","startHours":26.845426555662506,"endHours":28.294802463060304,"quality":"inauspicious"},{"name":"Śubha","start":"04:18","end":"05:45","startHours":28.294802463060304,"endHours":29.7441783704581,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.744178370458102,"endHours":6.744178370458102,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.744178370458102,"endHours":7.744178370458102,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.744178370458102,"endHours":8.744178370458101,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.744178370458101,"endHours":9.744178370458101,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.744178370458101,"endHours":10.744178370458101,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.744178370458101,"endHours":11.744178370458101,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.744178370458101,"endHours":12.744178370458101,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.744178370458101,"endHours":13.744178370458101,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.744178370458101,"endHours":14.744178370458101,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.744178370458101,"endHours":15.744178370458101,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.744178370458101,"endHours":16.7441783704581,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.7441783704581,"endHours":17.7441783704581,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.7441783704581,"endHours":18.7441783704581,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.7441783704581,"endHours":19.7441783704581,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.7441783704581,"endHours":20.7441783704581,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.7441783704581,"endHours":21.7441783704581,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.7441783704581,"endHours":22.7441783704581,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.7441783704581,"endHours":23.7441783704581,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.7441783704581,"endHours":24.7441783704581,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.7441783704581,"endHours":25.7441783704581,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.7441783704581,"endHours":26.7441783704581,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.7441783704581,"endHours":27.7441783704581,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.7441783704581,"endHours":28.7441783704581,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.7441783704581,"endHours":29.7441783704581,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":4.150921094520676,"eotMinutes":4.383515547985428,"ayanamsa":24.1561}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Ṣaṣṭhī · Vikram 2078 Ānanda · Śaka 1943 Plava"},"festivals":[{"id":"subrahmanya-shashthi","name":"Subrahmaṇya Ṣaṣṭhī","name_sanskrit":"सुब्रह्मण्य षष्ठी","tradition":"Shaiva","associated_deity":"Kārttikeya","significance":"Worship of Kārttikeya as Subrahmaṇya.","vrata":true,"detection":{"tithi_number":6,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":4},{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"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 12, 2021 CE · Ayodhyā · Vidhyamitra","description":"September 12, 2021 CE for Ayodhyā: Śukla Ṣaṣṭhī, sūryodaya 05:45, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2021-09-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2021-09-12","sa":"https://sa.vidhyamitra.com/city/ayodhya/2021-09-12","hi":"https://hi.vidhyamitra.com/city/ayodhya/2021-09-12","x-default":"https://vidhyamitra.com/city/ayodhya/2021-09-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T03:59:29.028Z","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":"2026-05-15T03:59:29.028Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T03:59:29.028Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}